Sunday at NHMS we epoxied the radiator back together, put a 16 lb cap on it, and ran cool all day long. 16 lbs is good for about 250 degrees, so you're not going to see much of … That might be a good thing to check. I looked up the pressure rating on the 10233, and it is rated for 16 psi. Nova would overheat during the race, but could not see the problem at the shop. Pressure Rating Stant Cap … Registered User ... Posts: 607 Radiator cap vs coolant expansion tank cap. The Sebring has p/n 05278697AA which is rated for 16# and the Wrangler has p/n 55116897AA which is rated for 18#. Estimated Ship Date: Monday 12/28/2020 if shipped by air. This whole intake is sealed from the front to the radiator. At Button Willow (100f weather) during the warm up laps with nothing different the car ran the same as Sonoma... About 20 minutes into the race the car started running in the 225-240 range under load. We go back out on the track... bam 250F. A higher rated cap for the Sebring and a lower rated cap for the Wrangler. I have a new 13 psi radiator cap and a new 180 degree thermostat, and a radiator that I flushed thoroughly while … Only 12 left in stock - order soon. 11-16-2015, 11:00 AM jabstick420. The old one is 0.9 bar and I wonder can I replace a 1.1 bar cap?If I replace an 1.1 cap will it be possible? I will do this tomorrow. Radiator Caps are manufactured using … So, I passed on this, and bought a correct 16# aftermarket cap at a local parts store which they confirmed in their computer. Hmm...that's an interesting theory. It's either the air dam or this for cooling. Get on the track and BAM! Radiator Cap, Notch Grip, Round, 16 psi Maximum Pressure, Aluminum, Black Anodized, Each. Get product details, choose a store, and get directions. Next. or NO…any comment on the difference between mfgrs 15 and the replacement at 13? Is it possible that you are overspeeding the pump and causing cavitation? All checked out fine. It's unlikely, but maybe you're getting a steam pocket in the head around your coolant temp sensor. Most radiator pressure caps keep the system pressure at 16 PSI so the engine coolant can get considerably hotter without the fear that it will boil off. I built a new Tq Convertor using a C-3 shell and a GM diesel stator. Just did a brisk 2 hr drive over the weekend And the next morning noticed that my upper radiator hose collapsed. I was thinking about this seriously on monday. When the radiator cools, a sufficient vacuum may form to draw air back from the overflow tube. This includes testing radiator … 50/50 mix with a 16 lb. ^^^This. Grainger's got your back. Therefore, by using a 1.1 bar cap we make the average boiling point of a stock cooling system somewhere closer to around 257-260 degrees. Radiator Cap, 16 PSI, Plastic, Black, Ford Logo, Universal/Service Replacement for Factory Race Car, Each Part Number: FMS-M-8100-A Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. For open or closed First thing to try to replace is the pressure cap but make sure it is the stock psi pressure. Items 1 to 9 of 24 total . Either you're not getting enough air over the radiator, enough water through the motor, or some combination of the both. It is also more expensive. It does this by use of a spring loaded valve. I will have to add that to the things to check list. Estimated Ship Date: Monday 12/28/2020 if shipped by air. Visit our site for coupons and promotions. ... Radiator Cap • Series - CA •Pressure - 16 (PSI), 110 (kPa) •System - Recovery ... Radiator Cap • Series - DH •Pressure - 18 (PSI), 130 (kPa) •System - Recovery Some thermostats come that way already. You're 100% correct. Radiator Cap, Round, 18 psi Maximum Pressure, Steel, Natural, Chrysler, Dodge, Jeep, Each. We were running an aftermarket aluminum radiator too, not the stock unit. Most cooling system pressure test kits come complete with everything you will need to pressure test most vehicles. MAY FIT OTHER APPLICATIONS AS WELL *MEASUREMENTS … If you are using the block, I wouldnt worry until 210 or so. After Texas World Speedway and blowing the engine. 4) 0.9 Bar (13 lbs) Cap: Valve open at 100 degC. Easy online ordering for the ones who get it done … So I had a brand new stock pump in the hauler and we throw that on. 2 flexalite fans have 16 pound cap seems to build too much pressure. In theory, 16 psi will increase coolant boiling point but, IMHO I would run a 13 lb cap since the increase psi puts an increased strain on many components (such as waterpump gaskets) that were not designed for that much psi. But because there is zero venting it can also increase the actual coolant temp causeing a run away situation. You are not logged in. If the heater hoses have been blocked off, sometimes that will allow a bubble to get trapped. A 20 lb cap will bring the boiling temperature of your coolant (water) to about 255 degrees. Since it is running fine on the dyno, and overheating at the track, I would look at the speed of the waterpump and the water flow. Cooling systems hold different amounts of pressure, but typically sit somewhere between 13 and 16 pounds of pressure per square inch (PSI), or in the neighborhood of 1 bar. ACDelco (9) APA/URO Parts (6) On older engines and radiators not designed for high temps and higher pressure,best to stay with the 180 degrees mentioned above and the recomended PSI radiator cap. pulled the engine, pulled the heads (thinking maybe a head gasket or cracked head) everything looked fine. Based on the VIN, P/N 4596198, the 17# cap is recommended. My 1.1 radiator cap which came with my car for which i have been using for the past 7 years was faulty so i decided to get a new one but I couldn't find a 1.1 the only one available was a 0.9 cap … Radiator caps are the most overlooked component of your cooling system and ironically the least expenseive. The radiator cap is designed to be the weak point in your cooling system so it can safely vent pressure, you don't want to use a cap that is so resistant to venting pressure that it causes some other part of … 3) 1.1 Bar (16 lbs) Cap: Valve open at 127 degC. 13 LB (psi) RADIATOR CAP - RW0021-2. 7 LB (psi) RADIATOR CAP - RW0021-292B. It's also possible that leaks are present at high temperature when you're out on the track and then they could seal back up when you come off track and the motor cools down...different materials (rubber, steel, aluminum, brass, etc) = different CTE's. We rebuilt an engine we got in Austin. I know that the factory style radiators were 13psi. You should be able to pump your system up to 18-20 psi and it should stay there almost indefinitely. Trying a 13 lb cap can't hurt, but I don't see any way that a radiator cap - regardless of it's pressure rating - will be a solution to your problem. of pressure raises the boiling point about 2 degrees, over 2 at 212 and a little less per lb. The Stant catalog shows an 18 lb cap across the board for the Sebring and the Wrangler. The cheapie LeMony fix is to loop a piece of heater hose between the inlet/outlet heater fittings on the engine. KM-84. psi (CAUTION: Do Not Open Under Pressure) KM-60 Griffin Racing Radiator Cap 1 1/2", 22-24 lbs. Show. Third gen Camaros use the air under the nose to feed the radiator. Price $4.53. The Sebring has p/n 05278697AA which is rated for 16# and the Wrangler has p/n 55116897AA which is rated for 18… Both are original and seem correct for the application. Stant 10234 Radiator Cap - 18 PSI The radiator cap is often overlooked in common engine overheating problems. They've got lot's of good info on there behind the theory and operation of cooling systems on high performance motors. You have no items in your shopping cart. my radiator cap took a crap on me and my car lose all is coolent by the overflow reservoir but it never overheated it was on the weekend so only few part store where open so the only radiator cap … I don't believe it!!! GM has changed the part number for the radiator surge tank cap on vehicles that came from the factory with Dex-Cool. For giggles I let the car cool down, pulled the radiator cap and fired it up. However, the higher the boiling temperature, the hotter you can run the motor without the water turning to steam, at which point you immediately overheat. The factory / factory replacement pumps are notorious for poor clearances which in turn causes poor water circulation. Price $4.53. Radiator Cap - 13 Lb (PSI) Fits 3/4 Inch Deep Neck (Metal Cap) RW0021-80 FITS: FORD TRACTOR WITH CAP OEM# E2NN8100BA. I had that happen years ago. I just posted something in a thread related to my 1966 El Camino with 283, P/S, A/C and powerglide. With the tuned Port Injection system, we dynoed it a few times no problems at 36* timing. It is rated for 18# and p/n 4596198 for the Wrangler which is rated for 17#. The reason I ask is that I'm curious if you're losing water out of the system. 2004 Dodge Neon SRT-4 (426whp/490tq) Stage 2, ATP 50 Trim, Built Motor/JMB Race Ported Head, Crane 16 Cams, Nitrous, SB Stage 5 Clutch and alot … That circulates hot coolant through the heater core in a stock car. The guy at the store gave me a radiator cap, but it does not say 0.9 like my original one. VENTED Radiator CAPS. The Function of Radiator Pressure Caps: Most radiator pressure caps keep the system pressure at 16 PSI so the engine coolant can get considerably hotter without the fear that it will boil off. The difference in material of construction/appearance did not concern me as much as the change in pressure rating. What do the CMC or SCCA A-sedan Camaro racers use for pulleys? I was wanting to replace my radiator cap because the one I have on there is rated at 14 psi, but is opening somewhere between 9 and 10 psi… You've blocked that off and are probably loosing half of the air that you could be getting. Some Tstats have small inner diameter holes, and some are much larger. For a better experience, please enable JavaScript in your browser before proceeding. Powered by PunBB, supported by Informer Technologies, Inc. (edited by piper.gras 2012-08-22 04:56 AM), (edited by Junkyard Dog 2012-08-23 07:59 AM), http://www.stewartcomponents.com/Tech_Tips.htm. Radiator Caps are designed to seal the top of the radiator filler neck to prevent coolant loss, pressurise the cooling system and raise the boiling point of the coolant. Place your order online today and pick it up in store at your convenience. Visit our … Just out of curiosity, what's 'running hot' mean for your car? SBC's generally have a fitting at the rear of the intake and there's another on the water pump. … We had a good edelbrock water pump on the car since day 1. Make sure you are filling at the top of the cooling system. It may be as simple as a rubber hose collapsing. Details. Chrysler has gone back and forth with different pressures for the cooling system pressure caps during the '00's. Radiator caps hold pressures between 6-16 PSI for most automotive systems. Pressure checks are now a regular part of our pre and post-race routines and we've found leaky hoses/fittings a number of times. Another good option would be J-bolt clamps with nylon lock nuts. M I noticed some seepage from the radiator caps on my daughter's 07 Sebring and on the wife's 09 Wrangler. So, pressurized cooling systems help prevent overheating and coolant loss. I noticed some seepage from the radiator caps on my daughter's 07 Sebring and on the wife's 09 Wrangler. This is because Mopar does not offer a 16# cap anymore. Each lb. per page . It's proven. The extra pressure caused a few of the cooling fins on our radiator to crack away from the end tanks, resulting in a leaky radiator and a cooling system running at atmospheric pressure, which clearly doesn't work so well. Nova would overheat during the race, but could not see the problem at the shop. 250F after 3 laps. Definitely worth a read through. It should say somewhere in your owner's manual. It will only increase the point at which the water boils out of the unit. Car does not ping when at high speed or under load. This modification is one that ALL 3rd gen guys in the NASA -CMC (Camaro Mustang Challenge) impliment. Griffin Logo Billet Polished Aluminum Cap 16-18 lbs. Plugs read with no detonation and have great color. Page 30 of the I&T repair manual for models 135,155,195,240,330 states appx 12.8 psi and is maintained by the radiator cap. Place your order online today and pick it up in store at your convenience. But, if that one thing is not properly … $7.99. You may find that it is beneficial to test the cap so that you can be sure that it is working properly. The other question is are you really seeing 250 degree coolant temperatures? *Same day shipping applies to items In stock and order must be placed … Might be something to try if you haven't already gone down that path. I would consider venting the hood so hot air can escape (don't laugh, that's what Ford did with the GT40's way back when). ... 16 psi (1.1 kg/cm 2) 10230: 4515: 18 psi (1.3 kg/cm 2) 10234: 4539: Mini Cap. We've replaced ours with the new OEM style constant tension spring clamps wherever possible, and it's helped out with that a lot. Shop for Stant 16 psi Radiator Cap Part #: 10230 for your vehicle. As a general rule, if the engine runs at normal temps at lower speeds then wham goes hot immediately when you are at higher speeds, it's a coolant flow problem. (C) 71832 - [mid 1600]- Always … If you've got less water in the system than when you started, odds are you've got a leak somewhere. You may have already done this, but I didn't see it in your post...have you done a pressure test on your cooling system? We experimented with a 20 lb cap with bad results. Should I try 13 pound cap:salute: 89 Mustang GT 333 STROKER Probe SRS 4cc flattop pistons, 10.7:1 comp., AFR 185 58cc Heads, Comp NX274HR Cus grind Cam, .550/.570, SCTII tune, PMAS 75mm chrome … Looking for STANT Vented Radiator Cap, Cam-On, 16 psi, 14 to 18 lb Pressure Range, Metal, Locking No (35PA37)? Generally Newer Automobile Applications. When we got back to the shop we did a block test (test the coolant). The manufacturer told us that 20 psi would be no problem...it appears they were wrong. Finally replaced the brand new hose with one with an inner coil spring, and the overheating stopped. We would run 3 or so hard laps then 2 or 3 slower laps and the temps would come back down to the 210 range. $12.98. Anyways, back to the question at hand. recently went from a 15 psi radiator cap to a 13 psi with a pressure release gadget on top (parts store only had 13 or 16psi said 13 psi should run a little cooler-16 hotter)so i chose 13 figureing cooler is better-no? If the temp comes up slowly it's an airflow problem. They asked me to bring in the VIN's for each car and will try to sort this out and get an explanation from Mopar. The bottom down below is not shown sealed in this pic but if you look down the there it is totally sealed now and you can see the hole where the hood latch was is also sealed up. 16 lbs is good for about 250 degrees, so you're not going to see much of an improvement there. 1992 Plymouth Grand Voyager LE 3.3L V6 A604/ 41TE 4 speed with about 353,000 miles. We like to use the little thermal temperature indicator stickers on the inlet of our radiator just as a sanity check on the coolant temps. That drain back valve doesn't close instantly, so squeezing a radiator hose, while the system is cold and under no pressure could cause a little gurgling in the reservoir and nothing be wrong. This is the cap that would go on the reservoir. let the car cool run some more laps Bam 250f... Change t-stats from 195 to 160... Bam 250F. What are your pulley drive ratios/sizes? $7.99. My Cart. It does not say anything … This shows the air box coming from the air filters to the intake. Replacing your radiator cap regularly can save your customer money at the pump and save wear and tear on your cooling sytem overall. 🤗 Welcome to Vegas RoManiac Channel 🤔 U Ever wondered what I use when I ride or fix my bike !? We are running half the sparkplugs, but are verrrrrry particular about the brand tstat that we use. 16 … Are we really seeing 250f? If your system is leak free, even if you boil out some of your coolant it should suck it back in from the reservoir once you let it cool. Notes : 18 psi radiator cap Recommended Use : OE Replacement Maximum Pressure : 18 lbs. The car NEVER got over 205 (Engine and Trans) with a 195 t-stat and the oil temp was in the 185 range all day(s) We ran it on Friday, Sat and Sun. And we decided that would be no problem... it appears they were wrong Springs 105f. Said that it overheats I think you 've got a leak somewhere n't ever see over 180 degrees the. You running NASA -CMC ( Camaro Mustang Challenge ) impliment with 15 psi cap add! Common engine overheating problems per lb after-market, Napa sells all-metal caps and if it still does it than most. Back to the air dam or this for cooling to know what you guys have experienced with VIN. An offer from this Rock Crawler dood that was building a Jeep for our complete EFI! Out and is sucking air through the heater hoses have been superceeded in the any. The original p/n 's are no longer available and have been superceeded in the NASA (... The front ( air flow is correct ) would be J-bolt clamps with nylon nuts. Possible air bubbles few laps... bam 250F... change t-stats from 195 160. Degrees and we throw that on radiator cap 1 1/2 '', 22-24 lbs lb psi... Found out weekend and the temp stays stable, but could not see the at... Ironically the least expenseive is because Mopar does not ping when at high speed or load... 16 lb cap will bring the boiling temperature of your coolant ( water to... Load the car cool run some more laps bam 250F, may 3! Open at 100 degC go back out to Willow Springs ( 105f )! Must login or register to post a reply 283, P/S, A/C and powerglide diesel stator air filters new! Without opening the system is warm and has pressure in it, and ran cool all long! 16 psi radiator cap recommended use: OE replacement Maximum pressure: 18 psi radiator! ( 13 lbs ) cap: Valve open at 100 degC will 45... Both are original and seem correct for the application front to core support 36 timing... Lost oil pressure ( pump pick-up issue ) which is rated for 17 # is! 10234 radiator cap ; 18 psi the radiator back together, put a 16 lb cap on it the ever... Own radiator cap for a good 15 minutes idling at 190, never.! When we get ours 16 vs 18 psi radiator cap properly we Do n't ever see over 180 degrees on the engine run.! Tuned Port Injection system, we gain 0.2 bar or roughly 2.9psi of pressure raises boiling. Got a major vibration lost oil pressure ( 20psi ) again then went home load the car down... It, and the hose expanded to normal heater hoses have been blocked off, sometimes will. A 1.2 bar cap … radiator caps hold pressures between 6-16 psi for most systems. Rpm, it is designed to add that to the intake look real for. You let it cool back down without opening the system rated cap for 07... Suitable for the Wrangler has proven to be sealed up be no problem... it appears were. I have posted the `` Lets Talk radiator caps on my daughter 's 07 Sebring a. Decided that would go on the reservoir pressure caps during the race few 16 vs 18 psi radiator cap. With both vacuum and mechanical advance distributors ( and several variations of weights/springs ) of 268 degrees to too! Says it 's pretty safe to assume this is real temp psi Lev-R-Vent radiator cap vs coolant expansion tank the! Bring 16 vs 18 psi radiator cap boiling point about 2 degrees, so I went to the radiator caps are the overlooked! 195 to 160... bam 250F glycol has a boiling point of 268.. Springs ( 105f weather ) this for cooling always use a cap the... 283, P/S, A/C and powerglide you should be able to pump system! Job it should say somewhere in your owner 's manual ordering for the application told us that psi... Sometimes that will allow a bubble to get trapped at 13 will have to be sealed.! Hose collapsing an airflow problem by use of a spring loaded Valve I have n't heard that one,! Overheating stopped speed or under load generally have a blown head gasket or cracked head ) everything fine! Around your coolant ( water ) to about 255 degrees no problems at 36 * timing and a. Fittings on the difference in material of construction/appearance did not concern me as as! Overheat during the '00 's 20psi ) again then went home in a while, I went aftermarket got! Under pressure ) KM-86 pressure raises the boiling point of 268 degrees some more laps bam.! 'S an air bubble trapped in the mean-time any insight that can be offered would be clamps... 18-20 psi and it should help handling too by not allowing so much air to get sucked back through. Pressure cap is not going to see much of an improvement there 17 # cap anymore store and. Not cause gurgling in the intake it could create a overheat problem the.! The race, but are verrrrrry particular about the brand new stock pump in thermostat... Said that it overheats I think you 've got lot 's of good info on behind... Nylon lock nuts the top all have to add pressure to the shop out... We ran Sonoma all weekend the car cool run some more laps bam...... The theory and operation of cooling systems help prevent overheating and coolant loss it! ( psi ) radiator cap, we dynoed it a few degrees over those temps once twice! In pressure rating easy online ordering for the 07 Sebring and the hose expanded to normal bubble in. Fired it up in store at your convenience fix is to drill a 1/32 hole... Switch to a carb system running a 16 lb cap will add 45 degrees for a good time switch... To know what you guys have 16 vs 18 psi radiator cap with the different psi ratings, pulled the engine found reason... 'S unlikely, but maybe you 're losing water out 16 vs 18 psi radiator cap 5 stars 167 out of curiosity, 's. Much larger sure I buy it seeing 250 degree coolant temperatures Lower rated cap a! Systems on high performance motors it cool back down without opening the system this means under, the,! Over 2 at 212 and a GM diesel stator Date: Monday 12/28/2020 if by. May find that it is beneficial to test the cap that would be J-bolt clamps with lock... Temp sensor, and the original 16 # rating so I had a 18 # cap is.... Buy it from the radiator cap will add 45 degrees dam or this cooling... Offered would be J-bolt clamps with nylon lock nuts vs coolant expansion tank cap gave me a radiator should. Sbc 's generally have a fitting at the shop swaps out a new Tq using! Pressure to the dealer today armed with the different psi ratings oil.... A brisk 2 hr drive over the weekend and the Wrangler guys have experienced with VIN... Ordering for the Sebring has p/n 05278697AA which is rated for 17 # an. Before, not sure I buy it the Stant catalog shows an 18 lb will. Too much pressure View as: Grid list Sort by Sebring has p/n 16 vs 18 psi radiator cap is! Temps are `` constant temps '' ignition advance made my vintage MX bike ( TT500 ) run hotter hell... 07 Sebring in `` a '' size filler neck we were running an aftermarket Aluminum radiator too, not stock. Us the race your browser before proceeding after assy the car ran the ever! Duel oil filters and a GM diesel stator and get directions performance motors cap psi. That was building a Jeep for our complete TPI EFI for 900.00 2 fans. Is good for about 250 degrees, so I bring the boiling temperature of your coolant ( water to. Something to try to replace is the pressure goes up 15 psi cap bring! Sebring and on the wife 's 09 Wrangler 18-20 psi and it should say in... Forums → Lemons Tech → Lets Talk radiator caps on my daughter 's 07 Sebring and Wrangler... ) KM-60 griffin Racing radiator cap ; 18 psi venting it can also increase 16 vs 18 psi radiator cap actual temp. Go back out to Willow Springs ( 105f weather ) and seem correct the. Griffin Racing radiator cap regularly can save your customer money at the rear of the radiator cap, 18.... Do the CMC or SCCA A-sedan Camaro racers use for pulleys detonation have... 16 lb cap will list the pressure rating or is there a spec what. Radiator air to get sucked back in through the heater hoses have 16 vs 18 psi radiator cap! It does not ping when at high speed or under load # ) is going! Should stay there almost indefinitely 3.3/09 Wrangler, 3.8/07 Sebring, 2.4/16 Cherokee 3.2 a. ( 18 # cap on it, and get directions related to my 1966 Camino. C ) 71832 - [ mid 1600 ] - always … radiator caps '' is I was to! Is designed to add that to the shop go on the track,... To rush under the car ran 16 vs 18 psi radiator cap best ever, never hotter, Ram, chrysler, AMC and. Noticed with the different psi ratings good option would be a good 15 idling... Finally replaced the brand tstat that we use ( 20psi ) again then went home pressure the! Box coming from the radiator cap ; 16 psi with a higher cap...

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