08 Viper with headers and 150 shot of nitrous!!

[MKB96Viper]

Well gang, these new engines like the nitrous. This car has 1800 miles on it with the following mods:

3.33 Unitrax gears with Quaife rear.
heavy duty half shafts
K&N Filter
Belanger Headers, H/F cats, and exhaust
Macedo Motorsports custom Nitrous Upgrade with 150 shot. (one step colder plugs)
The A/F ratio lands right around 11 - 11.5 just like it should be.

Power jumps from 570rwhp to 733!!
Torque jumps from 542 to 799!!!

[mjorgensen]

Are they going to be able to smooth out the big hump? Very impressive numbers though no doubt!

Were there check engine lights etc...?

[Bobpantax]

Originally Posted by MKB96Viper

Well gang, these new engines like the nitrous. This car has 1800 miles on it with the following mods:

3.33 Unitrax gears with Quaife rear.
heavy duty half shafts
K&N Filter
Belanger Headers, H/F cats, and exhaust
Macedo Motorsports custom Nitrous Upgrade with 150 shot. (one step colder plugs)
The A/F ratio lands right around 11 - 11.5 just like it should be.

Power jumps from 570rwhp to 733!!
Torque jumps from 542 to 799!!!

1. Is the nitrous staged or does the 150 come in all at once?

2. Is it a wet or dry kit?

3. Does the kit include a bottle opener and closer?

4. A bottle warmer?

5. If the nitrous comes in all at once, in what gear and at what speed are you activating it and how is traction?

6. Are you doing this with the stock Pistons?

[MKB96Viper]

Here are some answers:

No check engine lights.

No software to tune out that drop yet.

1. Is the nitrous staged or does the 150 come in all at once? All at once.

2. Is it a wet or dry kit? Wet

3. Does the kit include a bottle opener and closer? Both

4. A bottle warmer? yes

5. If the nitrous comes in all at once, in what gear and at what speed are you activating it and how is traction? I will use it from a stop in first gear at the track only with the slicks.

6. Are you doing this with the stock Pistons? yes

I'll keep you updated when I can get her to the track.

Keith

[johnk]

It will be interesting to see if the stock pistons hold that power.

Good luck.....

[Camfab]

That thing is going to clean up at the track! I'm not going to say what I think it's gonna run, I'll let you have those honors. Wow.

[CO-NOS-Viper]

Wow I see that thing running low 10's or high 9's with slicks. Thats just sick that your Stock rwhp is about the same as my nitrous rwhp. Its amazing how much the torque jumps on these engines running nitrous. That thing is going to be a beast on the track. I just hope everything holds up. Are those cast or forged pistons that come in the 2008's. Please tell me they went forged pistons instead of keeping the cast ones.

[boosted349]

nope they r cast

[Warfang]

When an all you can eat buffet just quite ain't enough....

Good lord! I know this goes without saying, but be safe in that thing. Sounds like a total monster!

[Hamrhead]

Great Numbers!


Is the time in your sig WITH all of the other mods except Nitrous?

[MKB96Viper]

Thanks guys,
The number in my signature IS with all the mods except the nitrous. I have not been able to run a full pass with the nitrous yet. There seems to be a torque management restriction in the stock ECU. When the ECU sees a spike in the torque numbers when you change gears its closing the throttle bodies, thus slowing the car. It will run fine as long as its a one gear run. Pick a gear, any gear, it pulls like a rocket and as soon as you shift up to the next gear the ECU slows the car. Drives me crazy! I am wide open for suggestions.
Anyone else experiencing similar problems??

Keith

[Bobpantax]

Have you communicated with Dan Cragin about the possibility of him reprogramming your controller? If not you need to contact him. He would know if it can be done.

[mjorgensen]

With all of the "new" engine controllers using the electric TB control is very hard to achieve. This is part of the reason the manufacturers are going this route I suspect. The Viper is not the only car that is seeing this tuning problem. There are others making power only to be robbed as you are by the PCM and it's FULL control over the TB.

Sorry

[MKB96Viper]

Anyone know of any tuners that can remove or increase the torque managment? We are ALL going to need this when you make any good power gains.

Thanks,
Keith

[2001 GTS]

Sounds like that will be the only way to beat an 08!

But should be able to tune it out or unplug something