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tpunx99GSX
10-12-2005, 10:30 PM
Ok heres what i decided:
I cancelled the dyno session and the injectors.
I found a good deal on a 50 trim setup that includes a ported and tapped 2g mani, with a tial 38mm wg, VP tubular o2 housing, Dejon Tool Intake pipe and Dejon tool lower ic piping for the 50 trim on the stock sidemount (which wont be used because of the FMIC)
So i figure ill get the best results from the dyno if i get this installed and working before going.
What injectors should i purchase for this kind of setup? (already know im getting a walboro fuel pump)
Thanks,
Tom

A//// Guy
10-12-2005, 10:34 PM
Well for that setup you will probably need those 680s... You just need a way for your ECU to realize you have them- Eprom chip or GM MAFT or AEM..

TheBlizzard
10-13-2005, 06:37 AM
If you do all that Tom you would be best suited to just get a EPROM ECU and go with DSMlink.

If I were you and didn't want to shell out a ton of money, I would just throw the FMIC on the car and and say fuck the injectors and just tune it with the stock ones. 2Gs have a better fuel system than 1Gs do, you could go a long way with the 450s and that T28.

Kracka
10-13-2005, 11:02 AM
I say use those 680's since you have them and get a Walbro 190 (keep it rewired). This is of course assuming you do get that 50-trim, if you don't just stay with the 450's or use 550's. No point in putting them in before you need them.

Shane@DBPerformance
10-13-2005, 12:48 PM
Tom, running 20psi with no FMIC on a turbo that puts out blazing hot isn't the best thing. You really have no idea if it's knocking or not. Not hitting fuel cut means absolutely nothing. Fuel cut doesn't save your motor from knock, detonation, running too lean, blowing up, damage, or just about anything at all.

Contrary to what a lot of these guys are saying, you can probably run the 680cc injectors with your turbo and an AFC and have the car idle and run okay. They are however, much larger than what you need. Running big injectors does not mean you can run more boost safely or anything. Usually you want the closest injector size suited to the power you are going to make. 450s are good to about 300whp, 550s are good to about 400whp. You will have a better chance of getting a good tune out of smaller injectors. More importantly, I wouldn't even bother running to high of boost or getting it tuned until you a FMIC. It's probably knocking like crazy if you are running high boost with no FMIC on the shit ass gas they have out there.

Shane@DBPerformance
10-13-2005, 12:49 PM
Well for that setup you will probably need those 680s... You just need a way for your ECU to realize you have them- Eprom chip or GM MAFT or AEM..

GM MAFT is no better than an AFC. All it does is try to fool the stock ECU in the same exact way.

Shane@DBPerformance
10-13-2005, 12:50 PM
why not just get an eprom ecu and socket and chip it?

He has a 2G, it's not that easy.

tpunx99GSX
10-13-2005, 01:23 PM
Thanks again Shane. What i will be doing is going with the 50 trim setup, 680cc inj, the FMIC will be on, WG, etc. Im just gonna say fuck it, go big or go home. Then after all of this is installed ill get it on the dyno and see what it'll do. Ill also look into a dsmlink.

cudvig
10-13-2005, 01:33 PM
I like when shane talks, people listen!


-Colin

slowbubblecar
10-13-2005, 01:51 PM
off topic, but what size injectors should be used with a GT35R? The car has a stock 6 bolt, FMIC, and all other supporting mods needed. I am not sure if I want to use my 780's or use my 1000's. I plan on running 110 leaded and hopefully 30psi or 25 psi pump. 25psi pump worked well on my car with the old turbo with no knock. BTW, it has dsmlink.