Dyno results...making changes..need opinions

[American_Muscle]

Hey guys

Just got back from the dyno here in Germany (I'm stationed overseas).
On a Superflow dyno I put down 350 rwhp.

My car has a:
-Vortech SQ supercharger
-90mm maf
-bassani catted(cats are gutted) x-pipe with flowmaster 40s

So people here have been saying I should be putting down more than that.
Just today I pulled the spark plugs and noticed they were stock!
Tomorrow I'll be putting in new NGK-TR6 plugs gapped at about 32 or 33.

I'll also be getting an afm powerpipe.

Should I be close to 400 rwhp with the RIGHT spark plugs and the power pipe?

Also..it has stock gearing. Are 4.10's good on a blown 4.6(manual)?

thanks
Patrick

 

[TweekedGT]

I have never heard of a superflow dyno but the numbers may be a little low. Not too much thought. I doubt you will see 400rwhp with the mods you mentioned. Probably closer to 365-370. I would go with 3.73 gears with your set up. I'm just not a fan of 4.10's on a daily driver especially if you have any distance to travel. I know there are a lot of guys here who have them and love them though so it's really your choice. They won't help your dyno numbers but they sure will get you down the track quicker.

 

[DerekStangGT]

i dont think his numbers are low they seem right on the money to me. all he's got is a midpipe and supercharger. not even upgraded plugs, so who knows if the previous owner even did a new fuel pump or injectors

 

[American_Muscle]

Forgot to mention that...everything was upgraded accordingly:
38lb inj and 255 lph fuel pump.

I'm guessing it was the mongoose kit.

 

[urban96]

what psi are you running?

 

[01Steeda]

with the stock pulley your pretty much right. I wouldnt be worrieds. get an intercooler and pulley down for more boost