Bought a new GN, What should I do to it?

[BetMinesFaster]

Id say its running ok, The spool time on the turbo is fairly lengthy, and it seems like its programing could use some touchups, From what was stated earlier in this post it sounds like these super comp headers may be playing a role in the spool time, it has not been regularly driven in the past years either, so just completing the spring cleaning may make it run better. Im planning on puting my scanner on it and using the scanmaster in it to see what the maf and o2 sensor are doing and going from there, also plan to look at timing advance, seeing as how I have no idea how it is set up now other than to go fast down a track???

 

[BetMinesFaster]

Any thoughts on injectors to purchase???

 

[BetMinesFaster]

Also, the car has no blow off valve, would this be a wise investment?

 

[QWIKWE4]

60lbs Mototron High Z's from Full Throttle or Turbo Tweak are the way to go. They are the biggest injector you can put without modding the injector driver in the ecm. I just installed miine and they work great. Smooth idle and great WOT

The blow off valve has been a pretty big debate on these cars. If you do a search for "blow off valve" or "BOV" you should find some threads about it.

 

[87GNSteve]

Does the car still have Power master brakes?
I would strongly suggest the Vacuum conversion.
Reason, look here:

http://www.turbobuick.com/forums/gnx-fortunate-547/224622-gnx-258-passed-away-bpg-ohio.html

Blow off valve not needed, that is more useful for a car w/ manual transmission.
And your slow spool is from those Hooker Headers.

 

[BetMinesFaster]

Thanks for all the input on this thread, its nice to see a forum where people actually want to see the other persons stuff go fast and run good! I have considered the brake conversion, its pretty cheap from Kirban, And im definately going to do the Gnx rear suspension and some fat sway bars this winter, and hopefully a massive 4 wheel disc conversion.

 

[Boost231]

+1 on the 60lbs Mototron High Z's from Full Throttle. Also the spool time has alot to do with your headers. as far as a blow of valve. its not required but it wont hurt if you have the money.

 

[Double-L]

Take the combination you have, use the best scan tool, and tune the engine to get the best out of it.
I have alky and a turbotweak chip. Can't go wrong with it.

I 2nd. this, Sounds like you have a well built car, Put the Alky in get a chip and tune and have fun