109hp gain on a 150 shot?????
Thread Starter
Teching In
Joined: Sep 2005
Posts: 35
Likes: 0
From: Winston-Salem NC
109hp gain on a 150 shot????? I dont get it. How can I only gain 109hp on a 150 hp jeting with my NOS kit. A little info is that it is a wet kit, jetted 65 and 38 which is right at a 150 shot according the the Master Jet list above and I only gained 109 at the wheels off of this setting. 
Bolt on car, dynoed 340 hp and 355 lb ft on motor and 449 hp with 525 lb ft on nitrous. The usual TR6's gapped at .38 , 3 degrees of timing pulled with timing tuner and activation at 3250 and cutting off at 6000 and bottle pressure was at 925psi. These are the only things that i would think could have something to do with it but everything seems to be operating perfectly except power is way down!!! We even logged it with EFI Live and everything is in order. Someone help me out here.
Bolt on car, dynoed 340 hp and 355 lb ft on motor and 449 hp with 525 lb ft on nitrous. The usual TR6's gapped at .38 , 3 degrees of timing pulled with timing tuner and activation at 3250 and cutting off at 6000 and bottle pressure was at 925psi. These are the only things that i would think could have something to do with it but everything seems to be operating perfectly except power is way down!!! We even logged it with EFI Live and everything is in order. Someone help me out here. Its common for that to happen. Try activating the nitrous later in the RPM's , that might get you some more max power. Also go down to a 32 jet for the fuel. I am at 62/32 and I am 1 point richer on spray than I am NA. Also take bottle PSi up to 1100, 925 is way to low.
I know your not seeing the most power on the initial hit, but you will see max torque on the initial hit. Make that torque later and it wont drop off as much later in the RPM's. Look at your graph and youll see what I mean.
Thread Starter
Teching In
Joined: Sep 2005
Posts: 35
Likes: 0
From: Winston-Salem NC
I always was told to Run the NOS wet kit at between 900 and 950psi to achieve the rated power level of the jets. Is that not factual information? Maybe I have been wrong all along. I guess i just dont see me gaining 40 wheel with upping the bottle pressure by 75-100 psi from 925 and activation at a later RPM. Is the Fuel jet to big in my case and do you guys think 11.5 is too rich?
NOS rates their jets at 950psi, and upping presure will lean you out. Depending on which jet list your using it may be for crank rating. Some of the newer NOS kits are being rated at the rear. Call NOS and find out, for sure. Just randomly doing this or that, well... Look for member srsnow, for NOS facts, or just pm him.
Robert
Robert
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Thread Starter
Teching In
Joined: Sep 2005
Posts: 35
Likes: 0
From: Winston-Salem NC
Originally Posted by Robert56@NitrousDirect
NOS rates their jets at 950psi, and upping presure will lean you out. Depending on which jet list your using it may be for crank rating. Some of the newer NOS kits are being rated at the rear. Call NOS and find out, for sure. Just randomly doing this or that, well... Look for member srsnow, for NOS facts, or just pm him.
Robert
Robert
The plate kit manual does not show a jetting for 150 shot, the highest it has is 135 HP, 65/42 jetting, although in the description of the kit it says it goes to 150 the settings arent in the manual though.
Thread Starter
Teching In
Joined: Sep 2005
Posts: 35
Likes: 0
From: Winston-Salem NC
Originally Posted by Bandit2150
I have the NOS ls1 plate kit
Last edited by Bandit2150; Oct 15, 2006 at 09:49 AM.
Originally Posted by Bandit2150
Actually, I thought it was the plate system. I bought the kit used off of a roomates car. I talked to him and he said that it is just a basic NOS universal V8 kit and he bought the NOS LS1 plate at a later date. So should I go off the jetting for the 5131 NOS kit (the universal one, not the plate system)or off the jetting for the plate system??? My current jets are for a 125 shot according to the manual for the universal kit. But according to NOS manual for the LS1 plate kit, my jets are for a 150 shot? Im a little confused on the whole situation.
Robert
Thread Starter
Teching In
Joined: Sep 2005
Posts: 35
Likes: 0
From: Winston-Salem NC
Thanks for all of you guys suggestions. I am gonna call tech support on monday and see what they have to say. I will post up what they tell me and see if it doesnt cure my issue. thanks again
