Nitrous and Tri-Flow cams

[Kudzu '92]

I promise I did search before asking

2010 brings to me, as a first time home-buyer, a big fat tax refund. And so I've decided to blow some of it on the SHO that has stood beside me for 10 years.

Here's the combination I'm looking at: 3.3L w/ stock or near stock comp., ported heads, all your mainstay bolt ons, cams, larger injectors and, eventually, after getting a good tune down, a healthy shot of nitrous (dry shot).

I already have a Quaife bolted in, and I have more fuel pump capacity than I'll need (I do have ShoNut's adjustable FPR).

The car is not my DD, but it will be driven on the street on weekends.

Specifically, I'd like to know if I should expect any problems by using Tri-flow/stage 2/"aggressive" cams on a motor that will see nitrous use. My understanding is that most "nitrous cams" limit overlap.

Your thoughts?

 

[Sho Amo]

should work great. area91 is running +40 cams and a 100shot with 317whp.

 

[Phoenix]

You should be all good , The bad thing about overlap is with boosted SHOs not nitrous.

Go for it.

 

[Kudzu '92]

Thanks! That's just what I wanted to hear. :thankyou:

 

[SHO Dude]

Nitrous and cams go great together.

I did a 3.2L high compression engine with about 130hp Pro-Fogger system. It put 340hp to the tires. What a blast.

 

[AREA 91]

should work great. area91 is running +40 cams and a 100shot with 317whp.

WRONG!!!!!!!!!!!

336 wheel hp

318 wheel tq

 

[AREA 91]

I promise I did search before asking

2010 brings to me, as a first time home-buyer, a big fat tax refund. And so I've decided to blow some of it on the SHO that has stood beside me for 10 years.

Here's the combination I'm looking at: 3.3L w/ stock or near stock comp., ported heads, all your mainstay bolt ons, cams, larger injectors and, eventually, after getting a good tune down, a healthy shot of nitrous (dry shot).

I already have a Quaife bolted in, and I have more fuel pump capacity than I'll need (I do have ShoNut's adjustable FPR).

The car is not my DD, but it will be driven on the street on weekends.

Specifically, I'd like to know if I should expect any problems by using Tri-flow/stage 2/"aggressive" cams on a motor that will see nitrous use. My understanding is that most "nitrous cams" limit overlap.

Your thoughts?

The below is for nitrous:
As a general rule you want to limit overlap between the intake and exhaust.

A nitrous cam usually will have more duration on the exhaust side to help expell the high volume of exhaust gas from the N2O hit.

 

[Sho Amo]

holy shyte! wow thats awesome brian! i only dyno'd 265 back in october with 400 psi bottle pressure. i really needed a heater.

 

[gmail]

I promise I did search before asking

2010 brings to me, as a first time home-buyer, a big fat tax refund. And so I've decided to blow some of it on the SHO that has stood beside me for 10 years.

Here's the combination I'm looking at: 3.3L w/ stock or near stock comp., ported heads, all your mainstay bolt ons, cams, larger injectors and, eventually, after getting a good tune down, a healthy shot of nitrous (dry shot).

I already have a Quaife bolted in, and I have more fuel pump capacity than I'll need (I do have ShoNut's adjustable FPR).

The car is not my DD, but it will be driven on the street on weekends.

Specifically, I'd like to know if I should expect any problems by using Tri-flow/stage 2/"aggressive" cams on a motor that will see nitrous use. My understanding is that most "nitrous cams" limit overlap.

Your thoughts?

are you already 3.3 your saying?
if your building it i recommend higher compression because n20 loves compression

 

[Kudzu '92]

I'm actually going to build the 3.3 motor. Or at least I'll be involved in the process. It will be my first experience with this, but because it's not my DD, I look at this as a good learning opportunity.

I had heard that nitrous motors like compression, but wasn't as sure about going to 10.6 C.R. since I'll be on pump gas exclusively. Maybe I'll have to rethink that because it seems like there are a lot of SHO's out there running higher a CR.

 

[St Louis SHO]

I like nawwws too...

 

[somedude_001]

I would love to run a lot of spray on a ATX and make some pulls down the 1/4 mile.

 

[Dave904]

I would love to run a lot of spray on a ATX and make some pulls down the 1/4 mile.

i can speak for that. however, it was interstate 95 worth of 1/4 mile. from a dig, there is nothing like a 130 shot on an ATX.

 

[sho_sc]

If it was me, I would forgo the 3.3L and stay with a 3.2L, rather spending that money on a good set of used headers. Since it appears you are in GA and can get 93 octane, I would consider the 12.5:1 pistons. But of course who am I?

 

[Toolman]

you likey the headers sc?

 

[sho_sc]

you likey the headers sc?

Yes. You do know that I modified them, no? match ported the ****** to the exhaust gasket which matched the heads. Then I had those "too small" collectors removed and replaced with some proper 2 1/2" ones. I've not had the SHO re-dyno'd since then, but I did do that 185+ mph run at Loring with them installed.

 

[SeanMc]

Yes. You do know that I modified them, no? match ported the ****** to the exhaust gasket which matched the heads. Then I had those "too small" collectors removed and replaced with some proper 2 1/2" ones. I've not had the SHO re-dyno'd since then, but I did do that 185+ mph run at Loring with them installed.

My God Ransom, that's awesome! I would love to see some video.

 

[NovaSS]

Nitrous and cams go great together.

I did a 3.2L high compression engine with about 130hp Pro-Fogger system. It put 340hp to the tires. What a blast.

Im getting a ******....