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Boost pressure after front mount..question.


mr keef

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Ello everyone..recently i have installed a front mount intercooler,as my side mount had seen better days.now i have double decat with restrictor ring and on my old cooler i was getting 15 psi,now since fitting the front mount im only getting 10 psi,but the car feels quicker at 10psi than it did at 15 on my old cooler.I dont have a bleed valve and there seems to be no air leaks anywhere,did this happen to anyone else,is it because the air is now cooler because of the frontmount?

 

cheers keef:shrug:

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You're not measuring it in some weird place are you?

 

naa mate all installed ages ago via the http://www.mkiv.com/techarticles/boostguage/bg.htm

 

spoke to a local tuner and he seemed to think its normal,he said if the standard cooler was'nt doing the job properly,and i fitted a big front mount with 3 inch pipes,then he would expect to see this kinda drop,checked everything over again and it all seems well.:shrug:

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spoke to a local tuner and he seemed to think its normal,he said if the standard cooler was'nt doing the job properly,and i fitted a big front mount with 3 inch pipes,then he would expect to see this kinda drop
That's different to the reports from other FMIC users I've been reading recently. Guys were saying that their boost pressure had increased after removing the stock SMIC and fitting a new front mounted one.

:conf:

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Seems strange to lose 5 psi ,thats a lot.

Cheap front mounts can restrict flow if not made properly thats why i asked the make,size sounds ok.

If its quicker it must be doing something right!!!

Try a boost cont and turn it back up.

D.

 

Yea the car feels a lot quicker, i couldnt believe the difference,so gona get me a boost controller and see what happens :thumbs:

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well the only reason I can think of is that your boost gauge is plumbed in on the turbo side of the intercooler, and hence the lower resistance of the FMIC is resultig in less pressure on that side of the pipework.... but you would know if that was the case, as usually they are plumbed into the manifold...

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if i turn the boost up a small amount then,if there were leaks, the boost gauge reading wont change,i dont honestly think i have leaks,i will know for sure when i get the boost controller.And yea if they do blow then its single time :ok:

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  • 3 months later...

I know its been a while but fitted a bleed valve last week,turned the boost back up and had no problems at all,checked all the hoses pipes etc they were all fine,holds 15 psi :)...just outa intrest,has anyone ran more than 15 psi on the standard tubbies?and been ok?:eyebrows:

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