700 hp na pump gas LS7 - Lateral-g Forums

**jeff s** · #1 02-05-2008, 08:58 PM

Been on the dyno since last Wed.
We got to 690 hp today on BP pump premium fuel, idles smooth at 920 rpm.
Stock plastic intake, stock DBW throttle body, Tuned GM Corvette ecu, Custom Cam, head work, Schwartz MAF.
Maybe we'll hit it tomorrow, 2 more LS7's with different parts to test next.
Videos soon.

**4mm** · #2 02-05-2008, 09:45 PM

Very nice numbers, who would have imagined that from a NA LS7 one year ago.

Is the intake and tb ported? A dyno graph would be nice to check out the torque.

Bowtieracing · #3 02-05-2008, 11:36 PM

Thank you Jeff for real intresting numbers. Can you share the torque numbers as well ? I would like to know how are they compared to stock at lower rpms

deuce_454 · #4 02-06-2008, 04:00 AM

wow, what does this beast cost?? and what exhaust did you run on the dyno?? how much will a free flowing dual subtract from that number?? and what octane rating is minimum fopr that engine
we have 95 on pump here.. would that enable you guys to free up some additional power??

**jeff s** · #5 02-06-2008, 12:35 PM

Still on the dyno today with a couple other combos.
That was with 93 octane BP, around here everything has 10% ethanol in it.
Stock plastic intake on this one. Our headwork, our custom MAF, our tune in the GM ECU, our specs on the cam.
It's easy to make big numbers with these engines, by throwing more cam at it, but the key is a streetable package, which we have.
It has 450 ft lbs at 3000, 500 lbs at 3800, 574.3 at 5500, 517lbs at 7000
676 hp still at 7400. Idles smooth at 920.
Peak hp was 7000 rpm
peak tq at 5500, but the curve is flat as a pancake.
Thanks

YancyJohns · #6 02-06-2008, 03:45 PM

That's awesome Jeff.

Now, what can you do with an LS3? I'll send you mine.

radrambler · #7 02-06-2008, 03:47 PM

jeff

thats some nice #s . whats that setup going into or are you just testing your combo on the motor ?

radrambler

Nate_ERC · #8 02-06-2008, 04:14 PM

Is the shortblock OEM?

frankenstang · #9 02-06-2008, 05:25 PM

Stock bottom end guys! Aftermarket rod bolts.

He has some customers overseas that are interested in BIG #'s

**jeff s** · #10 02-06-2008, 05:39 PM

All our packages we upgrade the rod bolts, this one had Forged Mahle pistons, and re balanced. This was with our Schwartz Ultima headers, which are fairly short tubes, 3" exhaust on the dyno. These had head mods as well.

Late today we made 730.7 hp with a similar combo, different head work, a modified alum GMPP intake, the Schwartz Power Spacer and the drive by wire TB. We were able to maintian the flat curve despite shorter runners.

3 of these engines tested are going into Ultima GTR's in Europe, one is going into a FFR GTM and another we are installing in a 64 Malibu SS.
Still testing tomorrow, so probably wont post vids til monday.
Thanks