Alright I finally got the INTENSE Stage 4 w/2.5" pulley !! I bought a Fujita CAI filter to make my Air-Box Mod and I got a Scan Gauge. Well I definately noticed an increasae in power! My boost went from 10-psi to 16.2-psi. I had to take out my CAI (kept throwing P0171-lean code). Unfortunatly I never got a base run but I currently run 272-HP and ???-TQ but thats at the crank.....so with 13% drivetrain loss I'm seeing about 237. IS THIS ACCURATE? Doesn't seem right to me. What are you all getting with similar set-ups? Or have I forgotten something? I see Knock (0 - 4.0 and seen as high as 6) depending on RPM & Gear & Speed. Is this safe.....I know what knock is but, I don't know what's safe.

Todd's been a great help w/ everything but I want to see if I'm the only one and want to see where you all are at.

SO with:

S-4 w/2.5" & CAI = 238-HP @ 17.3-PSI
S-4 w/2.5" = 237 @ 16.2-PSI

INTENSE States:

S-4 = 265-HP @ 17-PSI

 

Those numbers are similar to what I saw a SS dyno with the Stage 5 tune, 2.5" pulley, and 60 lb injectors. He was also getting similar amounts of knock.

 

Similair numbers as 237-HP @ 16.2-PSI? What did he do? The only difference between Stage 4 and Stage 5 is the Ported s/c housing. PCM's are the same.

 

His hp numbers were ranged from 241-248 but I don't know what the psi was. Also, he didn't have the ported sc housing.

 

There has to ba a reason why mine isn't at 260-270 as there website states. Now I read GM rates there drivetrain loss at 17%...so that makes me around 225hp. These numbers don't make sense. Shouldn't my crank read around 320-ish to see 265 hp? Little help INTENSE. e-mail sent

 

Yeah your numbers seem low bro. I only have GM Stage 2 and a CAI and I put down 242whp. With a 17% drivetrain loss that would put me at 283 crank horsepower.
Stage 4 has to be more than that IMO!

 

how are you reading your numbers. what kind of dyno. I hope your not talking about your scan gauge.

 

Damn I put down more stock with just an airbox mod.

 

Let me make sure I get this out....I'm using the scan gauge and friends hand held thingy we are getting the same numbers 272 hp.....but that's at the crank.....right? I know someone is going to slam me about reading numbers off a scan gauge so....go ahead and let me have it....be informative though

 

dude I beleive Intense said that those are possible numbers. Not definite numbers , two of the same cars with the same upgrades can produce different numbers.

 

Actually the scan gauge is not that far off from real numbers. At least not as far off as these numbers show.

 

You need to take it to an actual dyno and get it tuned. I wouldn't use the other numbers. INTENSE even states that their tunes are not calibrated for aftermarket intakes.

 

THANKS, I knew about the CAI but I though I'd give it a try. I asked INTENSE to adjust for CAI but they said they couldn't and to go get a dino-tune. Also the scan gauge reads CRANK HP right??

And w/ 2.5" Pulley shouldn't I see 17-19 PSI? Why do I only see 16 PSI?

 

could be the heat. Could also be atmospheric pressure.

 

Yes, find someone with HP Tuners who can tune your car on a dyno, you'll maximize your setup that way. You'll be happy you did!

As for the boost, are you getting any belt slip?

 

Yeah it reads crank horsepower.
And yes you should see around 17-19psi with a 2.5"

 

I don't know how to find out......and if I did what can I do about that. I have the oversized tensioner pulley.

 

I don't know bro. Honestly your best bet is to get Intense on the phone and explain what's going on.

 

Look for black dust by the supercharger. Two things will work, if you are getting slip. The supercharger spacer from INTENSE, or a smaller belt (the belt for GM's stage 2 kit). INTENSE has these also.

 

Nope...no black dust. I e-mailed INTENSE and I told them I'm not an expert at this stuff.....I should have said I'm a fricken moron so please break it down for me. Maybe you all can break it down for me.

INTENSE wrote:

The scangauge can only read MAP for boost which pegs at 2 times atmospheric pressure so it may not be reading the higher numbers. Horsepower appears to be higher than our dynos have shown but that could be due to the algorithm the scanguage uses to calculate it or you may just have a superior car.

 

Superior car? WTF? Your numbers are lower than they should be. What are they talking about? The numbers are too low and the boost is too low. I don't get it bro.....sorry
Maybe they misunderstood what you were saying.

 

To sum it up for you, it's basically the same thing I said. Don't use that gauge for your horsepower, it's not reliable enough. The best thing you can do at this point is to take your car to someone who knows how to tune these cars, and tune it on the dyno (and street). Rob is the best guy I can recommend, I don't know how far you are from him. Besides, dyno's are just for tuning. Use them to get your car dialed in and get the fueling right, but the track is what actually shows your cars true performance.

 

I think INTENSE thought I was talking about 272HP being WHP.

 

I think my only option is to get a dino/tune done. After that I'll see what happens.

 

what should my AFR be? with CAI!