Doug tuned my car today and the final numbers are:

400 rwhp, 438 torque This is a little lower than I had hoped for, but the car feels great and I'm just glad I broke the 400 mark. For those interested in a Whipple here are my numbers as they progressed over the last year and a half.

Base line stock run - 256 rwhp

After adding low output (non-intercooeld Whipple) w/ 8lb pulley -
344 rwhp, 345 torque

Adding intercooler only (not changing tune) - 355 rwhp, 380 torque

Whipple w/ intercooler and 12lb pulley w/ final tune by Doug -
400 rwhp, 438 torque.

I have had a lot of questions about the Whipple and the intercooler. I hope this answers those questions. I know people are going to think 400 rwhp is a low number, but Doug tweaked it every way he could and this was we could get out of her. I'm happy with the way the car runs and feels and I can't thank Doug enough for coming back to Oklahoma and tuning some cars and Blake if you are reading this thank you for all your help with the pulley swap and the spark plug help!

 

Rob, that seems really low compared to other Whipples. What kind of timing are you running?

 

Nice! Im guessing that would translate roughly 440+ on a manual?


Are you seeing the full 12psi outta the pully even though you have full exhaust?

 

I would like to examine the datalog file(s). Specific parameters I'd like to see are:

Load
MAF Volts
MAF Counts
STFT (to see the commanded A/F ratios)
Air Charge Temp
Engine Coolant Temp
Spark Advance
Spark Source
Borderline Spark
MBT Spark
Open / Closed Loop Flag
FP Across Injectors
Knock Sensor Noise (both banks)
rpm
Vehicle Speed

I'd like to see most, if not all, these values because something just doesn't seem right. Ya see, my former Whippled '05 GT felt significantly stronger than my stock GT500. And from what I've read on other sites, guys who have dynoed stock '08 GT500s are seeing 440-450 hp. I suspect I was getting at least 470 rwhp with my GT....

Rob, did you relocate your inlet air temp sensor? This is a critical change that should be done on all screw type blowers. My gut feeling is this wasn't done and your spark advance is way too retarded.... that you're not benefitting from the addition of the IC and cooler inlet temps. FYI, the power increase with an IC comes from advancing the timing due to lower air temps in the combustion chamber.

 

awhhh man Rob, those are some low numbers man. Can you describe in detail exactly what Doug did to get you to this number? I know you can get more out of there.

 

400+ rwhp = What was the timing on it?

-Adam

 

That's a nice torque number , what's the curve look like ...

 

I'll scan the dyno sheet or take a pic of it this evening and post it here. I should have done that last night.

 

[quote=OKLACOP;1093118]

Whipple w/ intercooler and 12lb pulley w/ final tune by Doug -
400 rwhp, 438 torque.

quote] Indeed! Torque is whats more important to me, but 400 is very respectable.

 

Rob and Blake

Just want to thank you guys for the help and especially getting Doug to OKC, had a good time and am pleased with the results and driveability of the car

See you soon,
Bob

 

Its looks like the dyno itself reads low did you do all your pulls on the same one?

 

Yeah, they were all done on the same dyno. The 06 with the turbo dynoed right around 445-450........I can't remember the exact numbers. If Blake reads this he can post the turbo's numbers.

It may have been the dyno, who knows? I'd like to think so, but if not I'm still happy with the car and the tune. Being able to say my car made 425 to 450 would be nice for my signature and all, but in the end it all matters how the car feels and that I have a safe tune, so no complaints here.

 

As long as your happy is all that matters. However I feel that you are running too much boost at 12lbs and only making 400hp. You should probably have it retuned, no offense to Doug, but something doesn't seem right.

 

Id have it dynoed some place else before we throw Doug under the buss. I agree at 12 psi he should be right at 500 if not more.

 

that's interesting, my HP/TQ ratio is opposite of yours. I made 445hp and 405tq (larger injectors, 10psi, dyno tune, auto trans). Wonder if the headers did that? I have stock exhaust accept for mufflers.

 

Project MILF tuned by JDM with 42lb injectors and the 12lb pulley made 439 rwhp and 422 rwtq on an auto with a set of Stainless Works 1 3/4" headers.

 

Was it a Dyno Jet or Mustang Dyno? Mustang Dynos always read lower than Dyno Jets

 

nem - I have followed the project Milf articles closely and was hoping for similar numbers. That night Blake, Doug and I discussed that exact article over dinner and it is completely possible that the magazine inflated those numbers.........they have done it before.

2L8IWON - it is a dynojet.

Here is a photo of the dyno sheet. I can't seem to get it to scan. Disregard the Alternative Motorsports header at the top.......just the name of the shop that had the dyno. Also some pics of the cars.

 

Hey Rob,
I would agree that your numbers do seem a little low but all what is important is how she feels and drives and are you happy with the results. Those torque numbers of yours should make her feel like she has a big block in her!!!!!!!!
Scott

 

Rob when you get a chance can you post up some more pics/video perhaps over on the BMMC page? or here I know some of the members would like to see some of the goings on from yesterday. Thanks