GTA91

iTrader: (14)

What kind of RWHP gains should one expect from a Nitro Dave's 2 stage 90mm plate setup. It has NX solenoids, 15lb bottle, and its on a 402LS2 with a TH350 and 9" behind it. I'm also running a standalone fuel system with 9-10psi, bottle pressure was 950-1000.

On a 200 shot the car gained 176rwhp, but on a 100 shot it only gained 56rwhp.

AFR was 11.5-11.8 throughout the dyno pull.

Thoughts? Comments?

zracer323

iTrader: (12)

What size jets were you running?

GTA91

iTrader: (14)

78n 57f
52n 38f

Dynospeed

iTrader: (3)

Every setup is a little different but the 100 shot is way low. What TQ did you pick up on each. Do you have graphs? What was bottle pressure?

GTA91

iTrader: (14)

Bottle pressure was 950-1000. AR472 plugs at .029"

484rwhp/441rwtq - NA (29° timing)

660rwhp/556rwtq - 1st stage 200hp (19° timing)

715rwhp/576rwtq - 2nd stage 100hp (18° timing, 710rwhp @ 16°)


402ci LS2 with 330cfm CNC'd 317 heads, FAST 90/90, 248/254cam, 11.2:1, 93 octane in tank and 110 leaded in standalone fuel cell pushing 9psi.

built TH350 with 8" spragless Transmission Specialties converter... 4800na and 5700n2o flashes on dyno pulls.

I think thats about it!


I guess I need to make some passes and read the plugs... Car felt and sounded great on the dyno.

Nitro Dave's Nitrous Outlet

iTrader: (25)

Our systems usually produce right at what they are rated at. I have alot of questions to run by you so give me a call or we would both be typing for ever.lol
Dave

GTA91

iTrader: (14)

Dave, I'll try and call sometime today. Thanks!

Nitro Dave's Nitrous Outlet

iTrader: (25)

It was nice talking to you. Keep me informed with the results.
Dave

GTA91

iTrader: (14)

Will do! I'll be picking up my b9efs plugs later today. I've got alot of other things going on right now, but I hope to mess with the car again soon in the next week or 2.

Thanks a ton Dave! GREAT customer service.

DaFireMan

iTrader: (5)

So in a nutshell what was going on? Please post results after u fix the issue.

Nitro Dave's Nitrous Outlet

iTrader: (25)

Not real sure yet.. His tune up is not really that bad. He is in the ball park.
I asked him to use a different spark plug, Do a flow consuption test to make sure the system is flowing the nitrous amount it should be, and once all that is done if everything checks out we will evaluateif its just puching through the convertor.
Dave

GTA91

iTrader: (14)

Basically what Dave said. I honestly don't think there's much wrong with it, but we'll see after I check some things and make some passes. I really could care less about dyno #s if it ETs and MPHs like it should.


I definitely will.


*I was looking at my dyno pull logs on my laptop and noticed that my voltage was dropping pretty low on my last few pulls... that might explain the lower #'s on the 300 shot as well.

GTA91

iTrader: (14)

dyno sheet

GTA91

iTrader: (14)

Links to an upcoming feature of the car in FSC.

http://www.nmcadigital.com/2012/01/1...re-sneak-peek/

http://www.nmcadigital.com/2012/03/1...s-fast-f-body/



Video of it at the track: (1st pass is 200 shot, 2nd one is NA)

http://www.youtube.com/watch?v=l3qc0I8EBFE