780 at the crank? U don't lose 140 whp thru a stick. Ur car isn't making anywhere near 780 hp. Not even close. Ur car is making about 680-690 hp at the crank on E85. On pump gas ur making ta 670 bhp. Pretty good numbers for low boost tho
Numbers are in: Whipple Gen 4 2.9
- Thread starter whipple1raptor
- Start date
hes making 701 at the tire on e85, so clearly more than 680-690.
Clutch and 26 spline input shaft needs to be the next items on your list. Like mentioned that stock clutch isn’t going to last long.
And you're worried about brakes! Replace that diff cover before it explodes and leaves you stranded. And I'd suggest upgrading to a 26 spline and upgraded retainer sleeve when you do the clutch.
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Lol
But seriously.....could be a world record pull on the stock clutch! I've been on this forum since '08 and cannot recall a stock clutch holding 700+ wheel. Shows how strong that factory unit was! God bless John Coletti.
I've heard of people doing it. They can handle a few glory pulls.
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Man look at that TQ curve! Or shelf I should say. Bay looks good
Torque looks like it starts to drop of fairly early to me. Could be wrong though but 3800 rpm seems a little low for peak.
I don't really see the TQ dropping off early.....it doesn't drop below 600 until 5000, that's within 4 tq of peak. FLAT. Now is the overall tq peak a little lower than I would have thought with a 701 peak hp number?.....yes. I would have thought it would lay down 650 tq range.
There's a hiccup at 6250....not sure what's happening there. That HP line was really shooting skyward before that happened. Man they pulled that sucker a long ways
There's a hiccup at 6250....not sure what's happening there. That HP line was really shooting skyward before that happened. Man they pulled that sucker a long ways
The hiccup they think was due to the stock clutch. When I told them it was stock, which they didn't know... He almost choked.
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The hiccup they think was due to the stock clutch. When I told them it was stock, which they didn't know... He almost choked.
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Yeah, the torque "curve" is nice. Flat, flat, and flat. Holds to where it should and this gen4 2.9 is really starting to make me wonder how long I will go on the 2.3 TVS before I say **** it and do a set of Todd Warren cams and spin the **** out of a 2.9. Only time, and my wallet, will tell
Lol.... Funny. Clutch first. I'll be doing some more work in January. This hobby ain't cheap
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Impressions: this thing pulls. Car is very controllable and feels stock to a certain extent. I did a few pulls today and I just disappeared from everyone. And..... The brakes are fine with this set up. Glad I didn't upgrade while I was getting this done. Maybe go to a 4 piston set up down the line. Didn't want to get on it too much. It rained pretty heavily this morning.
Over all very happy that I did this. Just need to find me a good station for that E!
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Over all very happy that I did this. Just need to find me a good station for that E!
Sent from my iPhone using svtperformance.com
Yeah, the torque "curve" is nice. Flat, flat, and flat. Holds to where it should and this gen4 2.9 is really starting to make me wonder how long I will go on the 2.3 TVS before I say **** it and do a set of Todd Warren cams and spin the **** out of a 2.9. Only time, and my wallet, will tell
Nice! Ya, this gen4 makes flat low and mid TQ....but has a nasty top end HP curve. In fact, revving to 6500 doesn't do the HP potential justice....looks like it could rev another 750 with ease and still pile on extra top end power. A set of cams and valvetrain to handle 7250 pulls should produce incredible results, even more than we've seen to this point on factory motors.
That's the idea. Whipple made a hell of a blower. That is for sure. I've seen Bryan, or whatever his name is, with the black one that runs bottom 9s with a stick running this blower. Its impressive without a doubt. I've always been a "show me", dont tell me kind of person. I've have seen the results on the dyno and on the track. This blower flat out gets it done.
How long before you upgrade to one?
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