boost drop off????
ok i hit 9psi and then around 5500 it slowly drops back to like 7psi at around red line. is that normal or do i need a helper spring?????
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Assuming you're using an MBC or straight up wg can - a helper spring can resolve some of that. It helps to make it adjustable (threaded rod) so you can make changes to the spring tension.
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yep normal, welcome to the GReddy kit.
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Has anybody just replaced the can? I do have the helper spring and all that, but sheesh.
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I've recently been fighting this same battle myself, in the quest for a nice, consistant 14 PSI or so. With the MBC alone, my setup typically will spike to 15 and then settle down to maybe 11 or 12. Ridiculous.
I've done a preliminary helper spring setup, but all I seem to have accomplished thus far is to move the spike upwards a bit. I used what I felt was a moderatly sized spring, not wanting to go too tight right outta the gate. I can't really say that it helped much- I'm still spiking... Base boost (with the MBC bypassed) went from about 5.5 PSI to 9 PSI. Relatively speaking, are others using stronger springs than this? |
My helper puts my unassisted boost to abou 9psi as well.
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I haven't gotten anything close to flat. I was seeing ~2psi fall after peak boost. The helper spring reduced that to just over 1psi. :dunno:
dotted line = boost |
Hook the mbc feed line to the coldside of the intercooler..
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took you 2 years to post your 1st post
in a 4 year old thread. Should we expect the next post by 2017? |
Originally Posted by amak87
(Post 774580)
Hook the mbc feed line to the coldside of the intercooler..
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he will answer your question in 4 years
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I joined while back helping my buddy with his 91 turbo. I sold my evo 9 went with a gsxr 600 now im rocking my turbo miata.. And how can you hook up the mbc feed to the coldside of the intercooler? Just drill and tap for a 1/8npt barb in the piping after the intercoolerm before the TB.. I did it a while back and got another 1.5psi till redline..
Idk why you guys just gotta hack on someone just cuz they havent posted yet. Im not a newb. Lol ive been boostin for 5 years.. And tuning evos for the past 3.. Lets keep on topic from now on ;) |
I joined while back helping my buddy with his 91 turbo. I sold my evo 9 went with a gsxr 600 now im rocking my turbo miata.. And how can you hook up the mbc feed to the coldside of the intercooler? Just drill and tap for a 1/8npt barb in the piping after the intercoolerm before the TB.. I did it a while back and got another 1.5psi till redline..
Idk why you guys just gotta hack on someone just cuz they havent posted yet. Im not a newb. Lol ive been boostin for 5 years.. And tuning evos for the past 3.. Lets keep on topic from now on ;) |
3 years oh shit you must be a tuning legend.
Everyone tunes cars here. literally like 90% of the boosted people here. tuning an evo with ecuflash/evoscan is fucking cake. I'm serious. |
Originally Posted by amak87
(Post 774781)
Idk why you guys just gotta hack on someone just cuz they havent posted yet.
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OAAlright man.,i never said I was the shit. Lol calm down its just the internet
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Lol funny stuff
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My girlfriend tunes all my cruise and 3/4 throttle cells while I drive to the shops. So...Yah.
Dann |
Originally Posted by amak87
(Post 774789)
Lol funny stuff
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Haha ya bro... Just like raping a dead body. Spot on with that analogy.. Lol
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