I have asked GTM this question before and they have done one. I thought about it for my car.

 

I've always wondered why I didn't see people running nitrous on FI cars. I never asked because I thought everybody would flame me.

 

Im waiting on my fuel return to get here, to run a 75shot on my APS TT with built block.

 

We'll be spraying our car with the twin 67's Alberto

We run a 250hp direct port on our Supra now. We'll see what we put on the Z

 

+1..I was thinking the same thing the other day when I was driving back from PF. IMO I think most people buy the Z for its handling ability and not for what it can do in a straight line. How long did it take the Supra guys to realize that they should be spraying those cars? Maybe some of the shops on here that also race supras can answer that question. I went to a Supra event(1/4 mile) at Bradenton about 6 months ago and there were like 50 Supras all running boost and N20 and I said the Z's need to step it up and get with the program if we're going to be competitive with the supras in the 1/4 mile. For that event the Supras were running high 9's-low 10's and then drove their cars home after changing out their tires. Thats what I would like to see from the Z community......

p.s. I remember a thread years ago that was titled "Why Drag a Z" and I guess that mentality is still prevalent today....of course thats not my mentality.

 

I've always wondered why people stick with the nissan 6 speed transmission who are so into drag racing. The people that have changed their transmission have gotten great results for drag racing. Why do people want the 3.794 1st gear ratio and gears that are so close together in conjunction with a large turbo(s) and then shift so many times?

 

Here are some graphs of an auto IS300 we did. On just the turbo all it would do was 626rwhp. The turbo was simply tapped out and wouldn't make any more boost. With a single nozzle with the boost controller off it would make about the same power. With 2-3psi less boost it would 740rwhp with the nitrous.

PR1=turbo only
PR2=WGSP + Nitrous
PR3=21-22psi + Nitrous

I plan on putting nitrous on my Greddy TT kit. It should make 800-850rwhp.

A properly built and tuned engine with your setup would handle 18-19 psi and a single nozzle fine.

 

that is one nasty is300, good work!!!

 

actually, I don't see that much in most domestic race cars. Most of the sanctioning bodies don't allow the use of "multiple power adders" in those classes. That is also why there haven't been many twin turbo setups on alot of domestics either. Twin turbos are considered to be dual power adders. Twins are usually only allowed in the top tier classes of each organizations. for example....like in Pro 5.0

 

I've always been curious y people dont use the Intercooler spray kits??!!

Hey Coach! How much power are u putting down on PF's dyno with just boost alone?

 

those IC spray kits are a big waste of nitrous. It is certainly not a very efficient way to cool down the intake charge.

 

I think more people are running boost and spray on this site than most think.

I wouldn't have it any other way. Greddy Twins + NX = fun.

 

[QUOTE=IslandZavage]I've always been curious y people dont use the Intercooler spray kits??!!

Hey Coach! How much power are u putting down on PF's dyno with just boost alone?[/QUOTE

425whp with the 5at...

 

 

when adding nitrous/boost are the injectors an issue as far as size??

Coach - what were/are majors concerns of adding nitrous to boost on a stock block? I know the limitations obviously come on with dealing with a stock block, but whatsthe best way of doing it? (wanna get my facts straight before i start callin u know who to hook it up!!)..lol

 

wet kits don't use the injectors to funnel fuel to the motor....its controlled by your fuel pump, fuel pressure regulator, and the fuel solenoid on the nitrous system....injectors are out of the picture. Just make sure you have a sufficient fuel pump or TWO.

 

be vewwy vewwy kwiet...I'm hunting vettez. sometimes you just never know whats under the hood.

 

Like old school said the injectors have nothing to do with the spray..With the 35 shot you should have nothing to worry about, at least not any more than with your TT setup. We all know what could happen with the stock blocks.JT sets up the spray on top of turbos and has it down pat. The spray is a nice cooling charge. So long as your not going to spray and boost from stop light to stoplight your good.....Call JT NOWWWWWW....you won't regret it

 

that sounds so tempting...what about highway runs..j/k.. lol

 

why not spray a strong NA motor with multiple stages of no2.
That usually takes care of the running out of turbo problem.
That is how it was in the old days.You build a monster bottom end and spray 100 (hole shot)+ 175 (60')+ and 250 top end.
If gm v-8 will hold up y not vq/hr ?
Reciprocating weight is less in our motors (rods,pistons,ect.) so rpm shouldn't be a problem.
Isn't 20+ psi about the same pressure inside the motor as a big spray?