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i have had a problem with my r33 since i installed a frount mount from just jap and done some other bits a pieces at the same time, it wouldnt hold boost now ive going through everything to try and fix it and i put my standard intercooler in now its fine, my question is why would the frount mount make so much difference.

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pod,manual boost controller, 3 inch from turbo back no cat, splitfire coil pack and power fc when i sort my boost and frount mount issue out.

are you using a jjr split dump/front pipe?

http://justjap.com/store/product.php?produ...=276&page=1

they cause boost spike issues. i'd also look at getting rid of your manual boost controller they are a common cause of boost issues.

i'd recommend you leave your stock dump pipe and just buy a front pipe, it's more then enough flow for the standard turbo and will elimimate boost creep. or buy a good quality unit and invest in a good ebc.

:spank:

are you using a jjr split dump/front pipe?

http://justjap.com/store/product.php?produ...=276&page=1

they cause boost spike issues. i'd also look at getting rid of your manual boost controller they are a common cause of boost issues.

i'd recommend you leave your stock dump pipe and just buy a front pipe, it's more then enough flow for the standard turbo and will elimimate boost creep. or buy a good quality unit and invest in a good ebc

no its not jjr dump pipe its of my mates r33, also tried an ebc when i had the front mount on and that did not help still overboosted, so i just took the front mount off and there is no problem.

no its not jjr dump pipe its of my mates r33, also tried an ebc when i had the front mount on and that did not help still overboosted, so i just took the front mount off and there is no problem.

interesting, what sort of boost was it running when the fmic was installed? if its creeping to 10-11 psi thats nornal.

with the frount mount 10 pound until 4 grand then just shoots upto 14-16 pound then settles around to 10pound at 6 grand, with the standard runs a nice constant 10-11 pound. i really dont know its really frustrating tho.

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