I guess the l36 bottem end is not all that strong

[Drone51]

The guy with the turbo gt that dynoed 405hp with spray posted this

besides that the infamous INDESTRUCTIBLE L36 monster is on its last leg...I just HAD to race an 01 SVT Cobra that was HEAVILY mod'd and I put about 2 cars on him from a 30roll but then i heard a funny noise. This old SOHC GT poostang came up and i went for a normal waxing when i punched it and the motor started CLACK CLACK CLACKing... Pushing horsepower levels over 375 consistently on the street on the L36 motor shows to put considerable wear down

[Turbo V6 Camaro]

any thing can were out........ 405 w/nos only that WAY TOO MUCH IN THE FRIST PLACE

[Drone51]

the diffrence is a dynojet does not put much strees on the motor as real life as in who cares his car can dyno 405 when it cant run that on the street.

the same thing happend to the 750hp stock ls1 it could dyno that all day hella 750hp dyno takes like 2 secs if that, but when it did an 11 sec pull there went the motor

[Turbo V6 Camaro]

Originally posted by Drone51:
the diffrence is a dynojet does not put much strees on the motor as real life as in who cares his car can dyno 405 when it cant run that on the street.

the same thing happend to the 750hp stock ls1 it could dyno that all day hella 750hp dyno takes like 2 secs if that, but when it did an 11 sec pull there went the motor

what he said, what year how many miles ?? sounds like this person drive hard all the time and goes like a bottle a day and never changes oil

[L32Projekt]

viper's right, there's a lot of factors to take in. Does he spray correctly (not too low in the RPMs), how's his maintenance, what's his daily driving style like? Even N/A cars blow up with incorrect driving and maintenance... There's just less leeway with the boost and N20 going...

[T-Punk]

how can you say that its not all that strong when he had more than double the stock rwhp! i agree its not indestructable but its still impressive.

[phoenix64]

Back when I had my powerdyne, just about everyone agreed that anything over 9psi was just going to cause blowby. What has changed in the last 2 years? Why are people still trying to find the "limit" of the stock short block?

[BadAzzRS]

Considering its not intercooled, and he was doing 12 pounds of boost, i can imagine the engine would blow up.

[oil pan 4]

does it realy matter how much power it had if it is in peaces?

[Arctc Wolf]

many things to consider. how big was the shot? nitrous adds power more violently than a turbo or sc does. when did the spray start? if u spray below 2500 or even 3000 rpms's, the motor encounters a lot of stress and can wear out. what kind of oil/maintenace was the car used to? normal oil or late maintenance will wear out even stock cars quicker than normal. what was the engine mileage? older engines won't handle power as well as newer ones. also, each engine from the factory isn't exactly the same as all others. some come out better, some come out worse.

[Drone51]

nitrous was not used when his motor let go only on the dyno did they spray it, they sprayed a dry shot before the turbo


he might of had 350hp when he ran the above cobra


his motor let go basicly on maybe 350hp even of it was not intercooled im sure he was on race gas if he was boosting that much none intecooled if he wasnt then he is plain stupid

[Mighty Thor]

Originally posted by phoenix64:
Back when I had my powerdyne, just about everyone agreed that anything over 9psi was just going to cause blowby. What has changed in the last 2 years? Why are people still trying to find the "limit" of the stock short block?

I still get blowby. I don't know if I remedied that problem though. So far the car runs great at 8-9 psi.

I know the L36 is strong, just look at Shirl's car. But I have a hunch that he leaned out.

[BadAzzRS]

Of course its a strong engine, but we are now looking at the limits. I persoanlly think its not too smart to run no intercooler and high boost with 9.5:1 compression.

Its a recipe for disaster. He was walking on thin ice from the start.

The street\strip does actually put hell of alot more stress than the dyno. But if this was a lean engine problem, the street abuse was not the case.
Usually street problems occur with parts like a cracked crankshaft or flywheel. Rods and Pistons are usually due to detonation. But many things can happen, i could be proved wrong in this case or others. That Turbo GT setup was not a street setup for daily driving. It ran on race gas and from speculation I would guess alot timming retard, I don't know anyone who uses race gas for driving on the road.

If you guys want your engines to last, look at the DSM, Supra, GN, SVO, GTP, 3000GT\Stealth, Typhoon\Syclone engines

Look at the specs of these engines, lower compression and a strong bottom end is a must if you want your engine to last with lots of power.

Don't believe any tricks of the trade, where race gas and lots of timming retard and tunning is involved for just keeping your engine working. It's all garbage and what I would call, a ghetto way to doing things. Stock GN might be able to handle 36 psi from a smaller turbo, but i assure you guys, thats running on thin ice. I dont want to call it stupidity, because i have respect for automobile enthusiats. but its not smart at all. even with a great tunning job.

Just leave it at this. If you want your stock engine to last with boost. Keep it at lower levels recommended by the experts, if you want more power you will have to pay the price.

And think of it like this... if you can afford tiago's turbo kit. A cheap engine rebuild with a stronger bottom end meaning

8.5:1 Forged pistons, shot peen or forged connecting rods and a shot peen crankshaft. Its not that expensive and it is worth it.

Infact you could keep your whole valvetrain stock. maybe some stronger push rods, thats it. and your engine will be able to take that 12-15 psi from good size turbo on pump gas.

So don't let those guys that blew up the GT make you think twice, its a stock engine not built for boost, what did you expect? hehe [img]smile.gif[/img]

[ April 26, 2004, 03:15 AM: Message edited by: BadAzzRS ]

[MustangEater8251]

Maybe he leaned out... and 12 psi of non0inner cooled boost is not a great idea...

Either way cannot judge by one car.

[Shirl]

Where was this posted? I'd like to read more..