Good build?

[camarov696]

For those that dont know ive been planning this build all winter. I have a 96 camaro A4 with 187,000 on the ticker. I had picked up a 97 with 120,xxx miles from a good friend that had a z28 rear with 3:23's and posi and brand new magnaflow catback. I pulled the motor trans and rear and am rebuilding it.

SO ive been collecting my parts slowly but surely. i put all new clevite bearings, clevite cam bearings , honed the cylinders, put new rings, AND just ordered my GT2 cam. Cam should be here tomorrow. Im leaving my heads stock for now to get this car rolling and taking my old heads and have them proted, polished and milled along with some new zzp springs.

POWER ADDER: Dynotune wet kit. starting with a 75hp shot and tuning my way up to a 125 shot(cant wait :D). possibly a 150 shot depending on how the tuning goes. Walboro fuel pump with GTP injectors. And FPSS.

GAUGES: N20 pressure gauge, Wideband, Fuel pressure gauge.

EXHAUST: Pacesetter headers, high flow cat with cutout in mid pipe. thinking of swapping the magnaflow for a borla.

DRIVETRAIN: A4 with shift kit, corvette servo, z28 rear with 3:23s. 3500 stall converter(maybe)

SOrry for the loooong post but i wanted some input on if theres anything im missing? i think the car is gunna be a little monster. only downfall i see will be the stock heads til i get the p&p heads on there. I also already own most of these parts. Thanks in advance guys!

[camarov696]

Re: Good build?

oooo and pics will be added as soon as build is done!!

[97rs4life]

Re: Good build?

over 100 shot you should switch to dry, too many backfires occur from wet kits over 100hp shots

[camarov696]

Re: Good build?

over 100 shot you should switch to dry, too many backfires occur from wet kits over 100hp shots

i could do that. just cut the power to the fuel solenoid. being ill have the pump and injectors to back it up i should be good

[ssms5411]

Re: Good build?

Your going to need HPtuners to adjust the timing and to adjust things for the cam, injectors, etc. and to be able to use the scanner to see how its running as far as KR , timing and fuel trims, esp using nitrous. I use to spray 125 -150 wet shots and it did well, from peoples stories its probably not a good idea but I'm running a FI/Nitrous VS cam so maybe thats why I was lucky, just watch your wideband so your not going too rich.

[camarov696]

Re: Good build?

Your going to need HPtuners to adjust the timing and to adjust things for the cam, injectors, etc. and to be able to use the scanner to see how its running as far as KR , timing and fuel trims, esp using nitrous. I use to spray 125 -150 wet shots and it did well, from peoples stories its probably not a good idea but I'm running a FI/Nitrous VS cam so maybe thats why I was lucky, just watch your wideband so your not going too rich.

nice sounds good. correct me if im wrong. but if i wanna run a 150 shot cant i mess with the fuel jets to lean it out a little so it doesnt run too rich and cause a backfire?

[ssms5411]

Re: Good build?

You can but the timing is going to kill yoour engine, plus HPtuners is alot better tuning product if your going to be running that high of a shot esp. with that cam your going to need to tune it, for idle, stall and fuel trims etc. The one who short cut are the ones blowing up their engines.

[camarov696]

Re: Good build?

You can but the timing is going to kill yoour engine, plus HPtuners is alot better tuning product if your going to be running that high of a shot esp. with that cam your going to need to tune it, for idle, stall and fuel trims etc. The one who short cut are the ones blowing up their engines.

after the time and money im putting into this thing thats the last thing i want heppening lol.. from the research ive done ive read that the GT2 responds good to nitrous and also adds a good amount of power while running NA? i think i should hit around 230-250 with the stock heads until i get em P&P'd. this realistic?? i wanna hit around 330-350 with the nitrous and eventually work up to around 375ish. whats the point of building an engine if you dont set a goal right?? lol

[whitdog54]

Re: Good build?

Im not sure why people set HP numbers goals, I would set 1/4 my ets. Thats what counts.

Your gonna max out the GTP injectors on just the cam more then likely, or get close to it. Nevermind spraying it, especially if you go dry.


The backfire is caused by fuel and n20 puddling up in our wonderful intakes.

[camarov696]

Re: Good build?

Im not sure why people set HP numbers goals, I would set 1/4 my ets. Thats what counts.

Your gonna max out the GTP injectors on just the cam more then likely, or get close to it. Nevermind spraying it, especially if you go dry.


The backfire is caused by fuel and n20 puddling up in our wonderful intakes.

it is what counts. i just wanna be putting out a good amount of power then set my suspension up accordingly for that power. when thats all done then ill set my 1/4 mi. goal which id be very happy with low 13's-high 12's. just gotta lighten her up a bit, shes a little on the heavy side lol.

and looking at our intakes when their off the engine... they suck lol

[ssms5411]

Re: Good build?

I was running 50-60% N/A with my VS cam , so the 36LB )33's actually GTP's will run short if putting alot of power through the engine. I have 65LB actually 60LB injectors now for the turbo and it runs 30% duty cycle. I found out that running more injector and less of a wet jet size will work alot better. Thats why I had no back fire isssues plus watching my A/F. For me I'm just going for WRHP for the street/ Dyno and maybe make some track passes.

[camarov696]

Re: Good build?

I was running 50-60% N/A with my VS cam , so the 36LB )33's actually GTP's will run short if putting alot of power through the engine. I have 65LB actually 60LB injectors now for the turbo and it runs 30% duty cycle. I found out that running more injector and less of a wet jet size will work alot better. Thats why I had no back fire isssues plus watching my A/F. For me I'm just going for WRHP for the street/ Dyno and maybe make some track passes.

where can i get the bigger injectors? and will they plug right in without modding them?

[ssms5411]

Re: Good build?

ZZPerformance has 65-(60lb) on our fuel system, you can get as high as 120LB I think, from some other companies. But I think 60lBS is pretty good for 500+ WRHP

[bwkmaro]

Re: Good build?

how has no one suggested you need different gears in the rear like 3.42/3.73 other wise ur off the line will suffer pretty bad the a4 is geared different than the m5

[97rs4life]

Re: Good build?

if you are going to switch to dry, you are not going to just cut power to the fuel solenoid. you need to move your nozzle to a different location as well (or get a dry nozzle). Dry shots go before the MAF so the computer can read the nitrous and add fuel accordingly. Wet shots go after the maf so the computer doesn't add extra fuel on top of your fuel because it is reading the nitrous.

And go with the abbott cam if you want an NA cam that loves to drink the giggle juice. Also your hp goals are a little high NA with cam only. cam/heads/intakes will get you closer to your 230hp goals.