2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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Boost!!!??????

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Old 03-27-02, 01:54 PM
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Eats, Sleeps, Dreams Rotary

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Arrow Boost!!!??????

Thinking of buying this TII.
Dude says he has never had it above 5k with the new motor. He also says it's never boosted above 6 or 7psi.

Here's the mods.

3k on Streetported motor
3' turbo back racingbeat exhaust
intake cone
SDS-programable EFI(thus, no AFM)
FMIC
Stock Turbo rebuilt and modified to flow 850cfm
12a modified distrubtor with 2 MSD 6AL BTM's
2 60,000 volt coils

My main questions are:
With these mods do ya think it should be boosting higher than 7psi at 5k? or does that sound about right?
What do ya think it would be boosting at Redline?
He said he has never experienced any boost creep, but then again he has never redlined it.
Do you think the stock wastegate could handle it? I don't know if it was ported.

I know the stock turbo will only boost around 14psi, but since this one is modified, is there risk of blowing the engine if redlined?

He said the turbo was rebuilt and modified by Majestic, I don't know if they would be dum enough to make the turbo flow more then the wastegate could handle.

Thanks guys
Old 03-27-02, 02:22 PM
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Eats, Sleeps, Dreams Rotary

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****....!!!!! didn't mean to post twice. sorry
Old 03-27-02, 02:47 PM
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SOLD THE RX-7!

 
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the waste gate will be ported from Majestic. 7psi is probably right.
Old 03-27-02, 02:49 PM
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Thanks man, I know it's a universe of variables, but what do you think it will boost at redline?
Old 03-27-02, 03:00 PM
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no idea. but that is not the correct way to make boost anyways. it's with a boost controler. so it will boost whatever you set it at

as long as you set it higher then what it is now, can't lower boost with one
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