lt1z

Its about IC efficiency. The LS valley is much smaller then a Coyote or Hemi. So on a truck you can push the blower up to make room for a larger IC. On limited hood clearance applications you can't. So they developed the heartbeat style which is similar to how the factory GM blowers are. These work better but still not as well a with the larger brick that the other engines can run with these type of blowers. That is why you see far more centrifugals on GM engines making bigger numbers. The Magnuson 2650 prototype on that camaro was pushed out the hood to make room for a larger brick. Would make a decent race system but not so much for the street. With that said the production 2650 will be a good option for those looking to make in the 800-1000whp range with a super reliable setup. If you want 1200whp look elsewhere.

400ci94mm

I may just buy a Harrop 2650. It fits under my factory cowl and factory hood.

Should make over 1,000 RWHP. Its pricey at $9,000 shipped to Florida......but still just a litrle more $$$ than the smaller, less powerful 2300 Heartbeat. Then I can sell my complete single turbo kit....which is gonna be a complex mess under the hood...and HEAT.

And we can fit a huge heat exchanger up into our front bumper with a Killer Chiller installed too....1998-2002 Trans Am.

A guy local to me is having one installed right now, should be done in a couple weeks and on the road. I'll check his out, then make a decision.

Cordes Performance Racing

the maggie build is on our facebook page. no dyno tricks or secrets about it. Just a well put together combo

old motorhead

For those of us that don't do FaceBook, how 'bout regurgitating it here?

Cordes Performance Racing

since it's a business page should still pull up like a website.


408, brodix heads ported by lme, my spec cam, 10:1 compression, hydraulic cam, 2'' headers, 102 tb, 5'' cai, e85, 4l80, 9'' rear end. 980 rwhp, 925 rwtq.

400ci94mm

934 RWHP.......on only SC'er....Nice power......getting closer to that 1,000 mark. I'm sure someone will get there one day.
Is that with a full custom exhaust?

This is more supporting evidence though, that the Whipple is really a crappy SC'er. They can't make that kind of power with the larger 2.9L Whipple.

So a couple 2300 SC'ers on CTS-Vs, one at 907 RWHP and Cordes at 934 RWHP....without using ICE...........thats cool.......

.

old motorhead

Replace that 4L80 with a manual transmission and I bet it would be damn close to a thousand.

400ci94mm

True....but then the car will be slower in the 1/4 mile.....

.

old motorhead

Ha! No doubt. I couldn't even imagine trying to stay ahead of that kind of Hp and tq with a manual tranny. You'd have to be one smooth/slick/quick shifting **** to even attempt it.

ysb02

Petraszewsky

400ci94mm

I spoke in depth about these types of set ups with Borowski......they said forget making 1,000 RWHP on anything with a Whipple 2.9. It just can't do it.

Borowski built just about the most expensive LS 427ci you can build....best of everything. $30,000 set up. The Whipple 2.9 got nowhere near 1,000 RWHP. Maybe 785 RWHP. If they just used a much smaller Heartbeat 2300 they would have made about 150-200 more HP.

They had to use a HUGE 4.0L Whipple to make 1,155 on the engine dyno..using the same extreme badass 427ci build....which would relate to about 959 RWHP.....

Whipple = TERRIBLE SC'ers....compared to other smaller SC'ers.

I'd still like to have that 1,155 FWHP set up in my car though.....but the SC'er would stick out of my hood.

.

chevyfanatic

easy 826 whp here on my tiny 2.3 with 900 lbs of torque. mild cam n cats too.

CI GS

Tell us more...
Is this on a Vette? Size/type of motor? Which blower? Fuel, Meth/E85? M6/A6/A4? Mods?
Because making 900 ft.lbs. at the wheels on a 2.3L TVS, especially in a Vette, is no mean feat, unless you’re spraying it with nitrous, of course.

chevyfanatic

lt4 cam/headers/heads/dual meth/low side fuel/103 mm tb/17psi

thanks

CI GS

Okay, it’s a C7/LT motor. I thought for a second that you had the most powerful C6/2300 TVS setup on the planet.
If only we could somehow get 17psi out of one of these blowers on a C6...

chuntington101

what boost do the ZR1s get upto? How come they can make big power but the HBs can’t?

Garymorris

The LS3 c6 is extremely pulley limited...you are stuck with a 10% OD damper and 81mm upper pulley plus potential belt slip issues when at the limit. Not likely to get anything over 12psi at sea level. LS9 drive system is different.

CI GS

Spot on. What he said^^^^