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

87 turbo upgrade questions

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Old Apr 26, 2007 | 11:35 AM
  #1  
spacemanmort's Avatar
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From: King George VA
87 turbo upgrade questions

I know this is a long post full of noob questions, but if you have some time please bear with me.

What the car has:
Microtech LT-8 engine management
walbro 255 fuel pump
Medium street port ~28K miles on rebuild.
Stock turbo w/ 32mm ported wastegate, no twin scroll
Joe P MBC set at 10psi
no AC, no emissions
no OMP
K&N air filter
I will update this later tonight with more specific info on the internals of the engine and port job.

What I want:
To go from 240 hp to 300-315 hp

What I plan to do:
FMIC.
Stage 2 turbo upgrade from rx-7store.com.
Injectors.
Have the Microtech lt8 tuned.
Variable boost controller that can be changed on the fly, this would be nice but not necessary.

What I am looking for from you guys:
Advice and ideas
Will the mods I’m looking at get me the 300 hp I want?
Who should I take the car to for a tune? (I live about 3 hr. south west of Washington DC)
How much boost will it take to get to the 300-315 hp level? I’m thinking 15-18 psi.
Will the engine hold the extra boost?
Which injectors should I use?
Which boost controller?*
I have a small FMIC, with no pipe. Do I get the pipe made, or buy a kit with a bigger FMIC and the pipe (and if so which kit)?*

Do you think that I can do this for less then 3,000?
Is this generally a good approach?
Will this kill reliability? It’s not a D. D., but I would like it to start and run when I want it to.

* At some point when I have enough engine to back it up I will probably want to bump up the hp again, so keep that in mind.

(This used to be impulsive-rx7 black car, FYI)

Don’t feel that you have to answer all of my questions, if you have input on just one point that is welcome.
Thanks, David
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Old Apr 26, 2007 | 08:59 PM
  #2  
spacemanmort's Avatar
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From: King George VA
Up date with more rebuild info,

3rd gen corner seals/springs
Stock 3 piece apex seals
Port matched intake manifolds/gaskets
Street ported

I thought I had more info than that, I might try e-mailing the guy that had the car when the motor was built.
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Old Apr 26, 2007 | 09:05 PM
  #3  
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slowmotion
Tenured Member 15 Years
 
Joined: May 2004
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From: Hamden, Ct
you can definatly achieve your hp goal wih these mods. if you have a good tune and it is not a daily driver and you take care of it it will be a great car that you can count on. the tune is everything.
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