Can anyone answer swiseuf's question? One of the premises that is key to this product is it's ability to return the ECU to stock. There's no difference if the warranty is voided...the only thing changing is the method of voiding it.

 

wow, aren't our trucks already decently low shifting trucks anyway? I couldn't imagine it shifting sooner!...but that's definately a good thought, as it would truly maximize the area under the curve.

-Mike

 

Good catch.

Now this thing just needs to come out.

 

Tim's Skelton assumption might be correct but for road racing purposes it makes more sense to keep boost under 12. (for better reliability) Then there is no need to modify shift points and power can be safely increased in many other ways. In my case, on track, I already have an abundance of torque. I will be playing with ratios by using different tire sizes. It will be either 335-30-18 or 335-35-17.

With all that traction, higher ratios, higher power and lower weight, I believe I have a recipe for a hell of alot of fun.

TB

 

Not related to the shift points but here is the info from the Predator beta testing session at Diablo last week with Nick, Patrick and *****.

Mods- 4lb lower, REM 2.77 upper, BaBolt TB, REM tube & filter, 90mm MAF, JDM Full meal deal exhaust

The dynosheet has both runs the same color so I added text to help seperate the graphs. The JDM tune is mail order and as you can see was very good to start with. The Predator tune was done on the dyno and picked up god power down low and a nice improvement across the board.
The numbers are Superflow which I am told is very conservative like the Mustang and anywhere from 8-15% lower than Dynojet. It's irrelevant to me as I judge by 1/4 mile MPH! The truck pulled 113MPH in the Florida heat last Friday night. The previous best was 110.5. I'm very happy and can't wait to get my hands on the final piece.


If pic doesn't show up!

Eric

 

I have been participating in Diablo's Predator beta testing also ... my first trip to the dyno produced 355hp and 391lb/ft at the rear wheels. At that time I had a 4lb lower and a 90mm mass air using the 2000 EEC and no other mods. They asked me to come back and run with the stock 80mm mass air which I did yesterday ... I left there making 345hp and 472lb/ft with the 80mm still on. Not only does it make much more torque with a wider and flatter curve but it is much smoother and that irritating cruise speed stumble is gone too. Diablo says even though the EECs should be identical and parameters are changed by the Predator, the 2000 EEC and the 2001-up EEC probably have different components installed on the motherboard making it impossible to properly run the 90mm without updating the EEC also. If you are a '99 or '00 you may benefit on the torque end by going back to the 80mm. Diablo was as surprised as I was ...

 

PS ... cudos to Pat, ***** and Brian ...

 

2000svtL2, thanks for sharing that. I've got a 2KL, and often wondered about the 80mm vs 90mm, hp vs torque situation.

 

2000svtL2,

So you say that going from the 90 mm MAF back to you 80 mm MAF that you dropped 10 HP and gained 81 FT. LBS. of torque. I don't doubt this happened to you but something is not right. Somebody was not doing something right with your truck is all I've got to say. I don't lose all of that torque with my 90 mm MAF. I dyno the same numbers, with like mods, as the 2001 up L's.

A year ago before Dealerjim had his motor built we were running at the track with the same mods. Dealerjim's L is a 2002. The list of mods were long but they were the same. When I say the same I mean the exact same. I had a 90 mm MAF upgrade running the stock 3.55 gears and he was running his stock 3.73 gears. The only thing that was not the exact same was the T/B. He had an Accufab and I had the Ford SVO. 60 foot times were quite close with both of us running F1's. Dealerjim ran a 12.444 and I ran a 12.440. Our chips were from the same tuner.

You need to go back and find out what the real problem was. This is not a slam at you but somebody didn't do something right.

 

Very odd indeed!

Perhaps we have some early software bugs at work here?

TB

 

I was at Diablo a couple weeks ago and we started off at 331rwhp and 420rwtq with a chip from Johhomy lightning and the Hp curve was flat at 4600.

We put in a 03 cobra computer and tuned it with a predator and wound up at 350rwhp and 440Rwtq. I have a 4lb pulley 90mm Maf and magna flow catback... The dyno does read low. (10-11%) That was proven there!

 

Those aren't good numbers accross the board especially considering the mods even if the dyno reads low. On top of that the increase with the Predator aren't impressive.

TB

 

I agree to some degree with your statement on the overall performance, but the tq(and hp to some degree) difference is remarkable-especially in the low range. Overall,I see a 10-20 increase across the board on both curves. To me, thats impressive.

 

If the numbers were 10-11% low, from the type of dyno used, he would be in the 400/500 club and then some.

 

LTNBOLT, TB
I agree that something doesn't seem right ... the predator tune paprameters looked good ... wonder if the 90mm has a problem. Anyone know of a way to test it?

Phil