Nitrous limits for 06 grand prix

**p5773566** · 04-20-2009

hey i was wondering if anyone knew the limit on spray i can put into my car with out it blowing it up

**blowfishRus6** · 04-20-2009

are you going to tune for the nitrious??? i would not go larger than a 50 shot.

**blueguy** · 04-21-2009

I've heard anywhere from 40 to 75. I honestly...would never touch the bottle. I am afraid of it and I have enough trouble blowing up 3800's without N20...let alone with it...

If you have a GTP...just put a meth kit on it and drop pulley sizes

**Sabrewings** · 04-21-2009

Bottles are for babies. Real men get blown.

Or, that's what they say. Not sure if it counts when your car came blown from the factory...

**Sinister Drag Designs** · 04-21-2009

All depends on the supporting mods and tuning.
There is no limit exactly but 3800s have run jetting for 200hp.

Mike S's nitrous bolt on car comes to mind when a safe tune and the right supporting mods can make good power.
Sinister Drag Designs - Mike Stiemann -2002 Pontiac Grand Prix GTP - Customer Cars - Content

The new setup will be injecting more.

Nitrous>meth
Nitrous + meth=

**Iron Indian** · 04-21-2009

I've heard of GTPs taking 75-100 Wet Shots regularly for years without any problems. I've known of a few who have run 125 and 150s on stock bottom ends without problems.

The MOST i've ever heard of was a guy named "Tweaky" on ClubGP, he was running a 190 Wet Shot IIRC on a STOCK bottom end. I don't know how many times he did this but I know he was hitting High 11s at Bandimere (5800ft)...

**Mikegotone'02** · 04-22-2009

Originally Posted by Iron Indian

I've heard of GTPs taking 75-100 Wet Shots regularly for years without any problems. I've known of a few who have run 125 and 150s on stock bottom ends without problems.

The MOST i've ever heard of was a guy named "Tweaky" on ClubGP, he was running a 190 Wet Shot IIRC on a STOCK bottom end. I don't know how many times he did this but I know he was hitting High 11s at Bandimere (5800ft)...

First off, your sig pic is tight good lineup you got there

Tweaky sprayed the crap out of his car lol, he's a good person to ask about nitrous, he knows his sh*t. Cool guy!

3800's are a lot stronger than people think, it's just all the guys running the smallest pulley they can to look chip pistons. Another reason is everyone seems to have this general concensus that 0-5* of kr is "ok" lol uhh.... no. Mine took 125shot no prob and will take bigger this season. If it's a wet shot with no tuning then 75shot is the biggest i'd go but if you're tuned for it 200shot or more but it's not going to last forever.

**p5773566** · 04-22-2009

i got the 75 wet shot but it just seems like its not spraying at all i got the kit with the WOT window switch and at WOT it pretty much feels the same i have no idea whats going on i got colder plugs and a t stat but it seems like its not spraying any ideas ? and now after trying to spray it my SES light was flashing at me and it seemed like it was miss fireing i have no idea whats up im pretty much stock except the cai plugs and t stat but anyone have any idea what that sputtering would come from im gonna run codes tomorrow cause the SES light finaly stayed on. did i blow it up ?

**Quicklynx** · 04-22-2009

haha, i just bought a bunch of parts from tweaky... cool guy

got to talking about maryland where he used to live and how he wants to bring his kids there

**Tweaky** · 04-23-2009

Never actually broke into 11's, Two cars hit 12.1 though. Both wet nitrous, both stock bottom end and stock trans, SLP headers and GenV, neither had IC. First car was the 190hp shot for a 12.107@118.09, 2.9 pulley, stock cam, 1.9 rockers and meth, and died a painful death at the track (engine fire, fuel line came out of fitting...had a guy here in town build the line for me, and that was a bad idea). Second car was 175hp shot for a 12.18@120.65, 2.8 pulley and IS3N/B cam. But second car is getting all new motor and trans for this summer, as a piston shattered and put a hole in the block (non-nitrous pass, I think it leaned out due to getting a what was probably a GT fuel pump from Advance Auto and going full power on a 2.8 pullied GenV).

Oh, first car had about a dozen 175hp or higher passes before it died. Second car had about the same at the track, plus I could have done a bit of playing around just outside of town, about 30 or so full nitrous runs. Between the two cars, I completely wore out a set of MT DR's, only doing minimal burnouts at Bandimere, and never anywhere else, and no regular driving on them either. The block and crank can take the abuse, just have to be careful with pistons and transmissions...and try not to lean out, ever.

Bone stock, do not go higher than 50hp shot, as fueling will be an issue past that. If you upgrade fueling, 75hp shot can be safe with tuning. Past that, more mods are needed, and you have to start retarding timing (earlier if you have a PCM with advanced timing).