690 HP?
 

Theres this guy in my town with a 98 Purple GT, hes got a 5.0 stroker, cam(supposedly insane), a meth kit. This is all i know of and he claims 690 hp. I call bs. I call bs of him even making 690 without ANY kind of FI. I dunno anything about meth kits otherwise id tell him to his face hes a lier. Info? :all:

the meth kit is for cooling... you sure he isnt blown? no point on a meth kit if yer not boosted.

I specifically asked what FI he was running and he said none. Is it even possible to make 690 on a non FI 5.0 2v block?

Fuck no its not. lol.

he isnt making anywhere near that power.

and all the methanol kits ive seen for GASOLINE engines are used to cool down air for FI applications, its like a makeshift chemical intercooler.

Methanol kits for Diesel however produce massive power.

but ive never heared of somebody using a methonal kit on a non added gasoline engine.

i could be wrong..

No way he is making 690 with FI

I've never seen one on an N/A motor....

He has to be blown. Theres no reason he wouldn't be with the meth kit.

Is it still fuel injected? And by stroker do you mean like a 302 stroked out to a 331 or bigger?

I could see a stroked 5.0 with a huge blower cam and a twin-screw hitting 690. But otherwise....nahhhhhh.

if this car is still a modular 2 valve without forced induction then there is no way it is making anything close to 600 hp. Even if the car does have FI with meth then there is a chance of it making something close to that number.

Meth, that is just some chemical that cools air intake temps and raises octane rating.

He has a 4.6 stroked to a 5.0, and he changed fuel delivery to carbeurated.

yeah that guy is completly full of shit.

its a 4.6l 2v, even stroked out with an agressive cam with all the boltons he can find i would have a very hard time believing he is over 350hp at the wheels.

i dont think i have even heared of much more than 300rwhp on a full bolton 4.6l 2v w/ cams. that extra .4 liters of displacement is not going to make a huge difference.

Ill laugh my ass off if he has a dozen turbinators in his intake thinking that gives him the extra hp.

i mean, if yer gonna be full of shit, pull a number that isnt so fucking rediculous. like, 350hp.

what a tool.

EDIT: and if he wetn from EFI to carb'd, he probably LOST hp in the conversion.

The car will not make 690hp with just a 5 liter stroker and a carb..it isn't going to happen

He's full of shit. Either the car doesn't make the power, or he's got forced induction. Tell him show proof with either a dyno sheet, or timeslips.

690rwhp is barely even possible with boost in a streetable modular 2v car. Nitrous would need a custom direct port (and probably multi-stage) system. He's BS'ing.

Water/Methanol mix is used to cool high intake temps caused by running high boost and to increase effective octane of pump gas on such combos. Boost builds a lot of heat and the water component takes a lot of heat to vaporize which cools down the whole charge a bit. The methanol allows increased timing advance for boosted motors by increasing effective octane. Methanol is 120octane IIRC so just a little dab goes a long way against 93 octane pump juice. On a NA car there's no case I can think of to use water/methanol short of operating the car in an oven. Besides, the continuous use of methanol has side effects in the bottom end that I think few users are aware of.

Im gunna have to sit this guy down and talk to him...I agree with all the above, i would have told him so, but i did not know enough about his car or what he could have to talk shit or prove him down. Whatcha think it would take to reach 690s?

That's a negative ghost rider.

That motor, forged internals, 18+lbs of boost on a turbo and a cam setup for it as well..not to mention all the bolt ons..

Or

That motor, forged internals, a blower like a Vortech YSI, a cam setup for it, and boltons.

OR

That motor, forged internals, a direct port setup with a minimum of a 250 shot of nitrous, maybe a two stage for it, an aftermarket cam that'll go nicely with it, and the boltons as well.

OR..

A 5liter motor stroked, and by that, a shitload of stroke, boltons, port/polish work maybe some shit like aftermarket heads, aftermarket upper intake, a bigass cam, and other boltons to go with it, and probalby a thousand plus dollar carb, since he's carb'd..

690rw... I'm figuring 21psi from a big single turbo or 25 from a big blower, fat cam, stage 3 PI or TFS heads, complete fuel system upgrade, long tubes, 750CFM carb on edelbrock intake and 7000rpm and some methanol injection.

Fact of the matter is that 690rwhp is at least 800bhp that the motor has to generate and feed fuel for. We didn't even touch on the rest of the drivetrain. One thing you would almost definitely see in a carb'd modular motor with that kind of stomp is a fuel pump somewhere that's big and red and says "Aeromotive A1000' on it. You can't feed a carb off our stock high pressure fuel pump.

You could run a 4.6 to 9000 rpm and not make 700hp NA. It requires boost.

Cool so i know for sure that without a doubt hes gotta have boost to be making the power, and even then with a shitton of boltons. Either that or hes not making that power(ima go with choice B)

I've never seen even a race built modular engine make very much over 500-550rwhp NA, and that 500+hp car is Al Papito's 8800RPM hand built, high compression, unobtanium intake wearing 5.6L 4v. It is in a word, unique.