New tune after longtubes yields big numbers

I put longtubes and an offroad h-pipe on a few weeks back, and noticed the powerband had shifted a bit, and also created a flatspot at the 3/4 shift. But I was too eager to take it to the GOOTC event for racing (where I shaved off another tenth) so I didn't get a new dyno tune until yesterday.

Longtubes on normally aspirated S197s usually yield 10hp or so. My tuner (Woodbine Motorsports in Carroll County) is always researching things, and discovered a few more tricks since I've got a stage III cam installed. I went from 323hp/309trq to 348hp/332trq! The car is amazingly responsive and smooth across the power band. This weekend is a washout it seems, but I'll be at the NVMC track rental on the 19th to see if I can pull some better ETs again.

John

Nice, JJ is the man!!!

congrats nice numbers

Very nice indeed! Hope to see you on the 19th as well! I can't wait to hear your car now...

Pinks all out, watch out for the Boss : )

very nice numbers, What Cams? and what other Mods do you have?
I gained a bit more from by JBA Long tubes than 10hp. and I also picked up almost 4 tenths in in the 1/4. although I am running Dougs (Bamachips Mailorder tune) I also tweek my tune at the track with the SCT unit , I hope to pickup a bit more with the dyno tune in July. I may see you at the NVMC Drag day. have fun...

Comp cams. I think 261 intake, 278 exhaust duration, lift is .490/.480. they used to call them stage III cams but they've re-engineered their mod motor line so I'm not sure of the part number now...

so your just running Cams, Headers and intake? any gears, DS, suff like that.

Here you go, everything on the car to date:

-Exhaust-
Mac axleback muffler
JBA h-pipe
JBA titanium coated longtube headers

-Engine-
C&L cold air intake with custom SCT XCAL2, 93 octane
Comp Stage III cams
Steeda underdrive pullies

-Drivetrain-
Spec II+ clutch
Spec steel flywheel
Spydershaft Aluminum driveshaft
BMR front driveshaft loop
FRPP 4.10 gears
MGW shifter

-Suspension-
BMR strut tower brace
BMR boxed lower control arms and relocation brackets
BMR adjustable upper control arm
BMR tubular k-member
BMR radiator support/front swaybar delete bracket
BMR Xtreme Antiroll Bar
QA-1 adjustable race shocks
Steeda springs

-Wheels and Tires (Street)
18" AFS Mach 1 wheels (18x9")
Goodyear Eagle F1 GS-D3 tires 275/40-18 at all 4 corners

-Wheels and Tires (Track)
17" Bullitt Wheel replicas (17x9")
Mickey Thompson 26X11.50-17 ET Streets (26") or
Mickey Thompson 295/45R17 ET Street Radials (27") or
M&H 325/45-17 Drag Radials (28")

-Interior-
Raptor shift light
S&S A-pillar dual gauge pod
Autometer air/fuel ratio gauge

Again "Good for you John" I seem to say that alot to you, but you deserve it.

Impressive gains

Did you install your tuner yourself or pay a performance shop

I have a custom dyno tune performed by Woodbine Motorsports, and it's uploaded through an SCT Xcal2. The handheld doesn't allow changes to cam timing or o2 sensor settings, and that has to be done by the shop.

John

you should buy my JBA axlebacks so you'd have all JBA exhaust Great numbers man

So i take it the predator sucks then