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Jeff NJ Jeff NJ is offline
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Join Date: Nov 2013
Location: NW NJ
Posts: 1,242
The "Let's upgrade Jeff NJ's car" thread

So I am loving my 930 in its stock form, but I always knew I would fall prey to the mod bug, so I want to start putting together a build list of sorts and ask for input from all the experts here with all the vast knowledge you guys have acquired.

My car is an 88, 58k miles and is totally stock. Original Cali emissions, 3ldz turbo, OEM IC, etc. Clutch is replaced, but not sure what it is. Gotta look at the receipts that came with the car. I want to keep the upgrades to basically bolt ons, so if I ever sell, there is still the choice to return to stock or keep the upgrades. Certainly a debatable choice, but that is where my mind is at the moment. (I know, I know, it will probably change later and you can all say you told me so then!)

The goal is earlier and quicker spool up and more power across the RPM range without sacrificing everyday drivability or reliability. I am not going to EFI. I do not have a BL WUR (tough to find now). I am getting historic plates, which in NJ means no emissions testing.

Here is what I am thinking:

Rarlyl8 headers and muffler with cat delete.
GT35 turbo
Tial WG with 1.0 bar spring
inter-cooler (not sure what yet)
MSD and coil.
AFR and boost gauge in the dash (PLX or similar)
CIS upgrades? not sure what I can or should do here. At what point does CIS cause problems due to not enough fuel?

This is probably a fall project, since I don't want to have the car in parts during the spring and summer and I just got the car in November, so driving it is more important now.

I will keep this thread updated as I build it for future reference to anyone else doing something similar. I want to dyno it before and after too, so I have actual proof of the improvements (or problems).

What say the experts? What am I missing? Any suggestions for a better combination of parts to get a good package together?
Happy to hear any and all opinions!

Since no post is good without pics, here she is freshly lowered (24.5-24.75 all around), and new RE-11's mounted.


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1988 930 Venetian Blue

Last edited by Jeff NJ; 04-15-2014 at 09:49 PM..
Old 04-15-2014, 09:23 PM
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