VietRacingGuy

toyota supra and nissan skyline can get up to 1200 HP, i wonder what is the highest HP the LS1 powered car can get up to?

i never see any z28 or t/a with over 1000 HP

Tiago

iTrader: (27)

look harder then...

there is a few ehre that are worthy of those figures, Im sure there is others that are not here.

RyanJ

1000-1100rwhp, 408cid, two T66's.

Ronnie Duke probably made at least that much (387C5R, F1R, N2O) when he went 8.5

cr133r

Keep an eye out for updates this weekend. The Corvette is on its way to TX for the Supra meet and should yeild some good results. We've got a proven 1046RWHP out of it so far and I can say its been over 1000RWHP for several pulls (can't say how many at this point) on the dyno with no ill affects.

Also don't forget the Skylines are typically fully backed by the manufacturer, so they have unlimited resources. There are only a handful of Supra's over 1200RWHP (I can really only think of one or two and they are pretty much all out race cars). I don't know of any street Supras that are over 1200RWHP.

Billy Barr
Dark Dragon Motorsports associate

http://members.***.net/darkdragon

stealth

I'm unaware of a pure "LS1" engine (LS1 alum block and LS1 heads) that's made over 900rwhp. It's my undertanding that there's at least two C5R-based motors making over 1000rwhp. On the other hand, torque moves a car down the track and I doubt that the Toyota or Nissan can match my 1233rwtq, but I could be wrong.

cr133r

We've got a Supra that made 1000+ RWTQ, thats pretty impressive if you ask me. But thats a huge turbo/nitrous combo. I'd have to see the Vette if we added 150 horse shot on top of it.

Pro Stock John

iTrader: (34)

I have not heard of any street Supras over 1100 rwhp.

I have not heard of any streetable LS1/LS6's over cr133r's/Stacey's numbers.

smokinHawk

iTrader: (48)

hey Stealth, have you gotten a good run on the track with your car yet?
and what engine management are you using?

stealth

No, it ran 10.20 on the blower last August at 6000 DA, and has been a dyno queen since. We're installing the Pro M maf next week and will dyno it using our new YSI blower. I will tow it down off the mountain to some lower elevation track and record some new times next month.

Our TSI emu will not longer be required due to the new maf.

YOUR03COBRA8ME

Yah but they dyno 1200rwhp with the bone stock motor as does the 03 cobra
FYI Bone stock 03 cobra 160#injectors and a fuel pump with a t-76 or t-88 ran 8.5@155mph it made over 1000rwhp

stealth

I'm skeptical about a bone stock motor making such power.

cr133r

Who dyno's 1200 with a bone stock motor? If your saying a Supra does, HAHA... No way in HELL. At 900RWHP you are on a limb if you are still running stock internals (rods). Many of the built motors are simply stock motors with new rods swapped in, but they sure as hell aren't putting down the 1200RWHP with parts like that.

Keep reading stuff on the internet, that'll learn ya...

The Cobra motor is quite the beast, too bad it ONLY makes 390HP (rated) from the factory with the blower (still down on power to the LS6) and gets shitty mileage to boot... Hmmm Maybe the car wouldn't be so damn heavy if they'd just bow down and put an LS1/6 in it?

Pro Stock John

iTrader: (34)

8.5@155 that Milohvetz Cougar? That was a forged bottom end.

MYTURBOT/A

I`ve heard that the 03 cobras snap rods if you go to far over 550rwhp.

Excal

those are dyno queens that never see work.

1200 FLYWHEEL hp for 1krpm is not so inpressive and won't run inmpressive.

the 2jz motored solara race cars, need 100+rwhp just to run what n/a huge ci motors do, even though the solaras surely weigh less.

stealth

Let's don't let unproven allegations relating to Ford distract this thread, which is about LS1 power. I've never lost to Mustang or Cobra on the street or track.

Nevertheless, there were some excellant threads at this site last year debating the strenghts and weaknesses of LS1 versus LT1 versus SBC versus CR5 motors. Maybe PSJ could resurrect that thread and we could just add on to it?

As I recall, one of the most controversial points was that LS1 motors have not proven to make the power of sbc motors; 15 sbc head bolts versus 10 LS1 bolts was a point of debate.

grooves12

How you can compare results of an engine that has nearly FIFTY YEARS of aftermarket and racing development to one that has been around for around 5 years is WAAAAAAY out there.

Fuel Injection tuning and development is still in its infancy, and most of the LS1 motors that are out there are still basically running "upgraded" stock parts. There are very few race-developed parts available for the LS1... whereas the big HP small blocks are running things like Tunnel Rams, HUUUUUGE roots-blowers, Cylinder heads developed for nothing but all0out racing (like Winston Cup SB2 heads or even the myriad of 220+ CC intake runner aftermarket pieces.)

The fact that the LS1 is already as capable as it is... shows just how good of an engine it is. I think that once the aftermarket for the LS1 matures... and the racing teams start developing parts for them, we will easily see results similar to those of the SBC if it doesn't surpass them significantly.

cr133r

We've made several (can't comment on how many yet) pulls over 1000RWHP without any hint of failure using ARP studs with the 6.0L iron block. I remember long ago seeing an article on a SBC making around 1200 crank HP that was having problems with heads lifting... Hmmm Makes me think maybe the LS1 block (well, iron block) with the technology gained from the LT5 project (head bolts that go further down into the block for more strength) may actually be a good thing. We just need to find someone that wants us to build an aluminum block 420+ with the same setup to see if it stays together at these power levels as well.

I'll have more definate info for you on Friday after the guys get done in TX at the dyno day (can't let any cats out of the bag yet).

stealth

cr133r,
I too am using the LQ4 block with 9/16" ARP head studs, drilled and tapped deep into the block, plus head o-rings and block receiver grooves. And, after much pain and suffering, I think it will now hold together under 1000 hp.

But tell us about your setup? Blown, TT, NOS, . . .

cr133r

I think his point was to say there was a discussion in the past, not that he believed either side.