C Murda

iTrader: (24)

just wondering if this is possible with forced induction? so many turbo kits and superchargers out there that tuners are building to achieve 800+WHP but they're all doing that on race gas....now why is it there are supras hitting 900WHP easily with only turbo and pump gas?

6techniques

iTrader: (7)

Yes. And alot of those "pump gas" Supras run some type of additive like alky or meth so they can use pump gas on higher psi.

Mike 01WS6

There is no supra out there running more than 650rwhp that is not running some type of additive, like alky/meth/water or octane booster in that "pump" gas.

C Murda

iTrader: (24)

oh ya i know they have like a water/meth kit but i dont consider that anything major like race gas. sorry should have mentioned that earlier. so is it possible to run an lsx motor to 900WHP on pump gas and water/meth injection?

boowho4u

You wont be able to make 300hp from adding wat/meth. People dont run it to make power, they use it to help prevent detonation.

There are no supras, running 900hp with pump gas. The only car I know that can possibly make that, is a viper.

C Murda

iTrader: (24)

and helping prevent detonation allows more timing or boost doesnt it, cooler charge therfore more boost can be handled?

boowho4u

Its mostly used, when race gas is not available or is to expensive to use on a daily basis. Wat/Meth will not stop your motor from grenading. It is a prevention method, not to be used to crank up the boost and add more timing at will.

bronze123

Sure is. heres a vid.http://videos.streetfire.net/search/...ea78971edf.htm

he is a memeber here under the name parish8. and the video title says 6.0 but its a 408

Got Me SOM

iTrader: (2)

with the dart lsx block coming out that can go up 454 ci and the gmpp lsx block that can go up to 500 ci, a 1000 hp on pump gas will start being way more common with meth.

**** anything above 800 rwhp is wicked fast on the street.

C Murda

iTrader: (24)

so basically if you have a motor that could be near detonation, water/meth would just help prevent it, i see. so whats the most power that anyone has ever gotten out of an lsx motor on pump gas and forced induction?

blue2002

Damn...........

bboyferal

iTrader: (9)

850 rwhp seems reasonable to me on a big cubed LS1... Has anyone done more?

Got Me SOM

iTrader: (2)

well parish holds the record at 1011hp. Mightmouse did like 995.

as long as you can keep the heads down, you can make the power.

methanol lowers the intake air temps down to almost to ambient or less which prevents detonation.

Dragframe

iTrader: (14)

low compression and lots of boost.... add some meth... i think so... jsut use real good flowing heads and i bet it takes less boost than you would imagine.

Got Me SOM

iTrader: (2)

a member here made 900 with a 408 and STOCK heads. cant remember if he was a 88 or 91 mm turbo. he wasn't on pump gas though

i believe he said the car went 125 in the 1/8 which is flyin

Dragframe

iTrader: (14)

i think good heads would make getting more power on pump so much easier...

And the stock head thing dont surprise me.... i bet i could make 500 with low compression pistons on the stock lt1 heads...

Having good heads helps a lot tho...

Got Me SOM

iTrader: (2)

most def, more power at less boost

after seeing some serious fast turbo cars run at the track yest, i have turbo envy but unfortunately for me I dont have the funds to convert over.

engineermike

You can absolutely gain 300 hp by adding water/meth. Think about the fact that you can go from 15 to 25 psi boost when adding meth. Depending on the combo, that can be worth quite alot.

Mike

Hennytime

iTrader: (33)

yes it was a 88mm turbo, i think a t88 pr pe88 running 24psi and it was running bottom 9's last time i read anything about it

rking

iTrader: (3)

Thats actually very far from the truth. Take a look at the GN crowd. I can only run about 16 lbs of boost and around 18 or 19 degrees of timing to get no knock. Turn on the alky and those numbers raise to around 23 lbs of boost and about 22 or 23 degrees of timing. Talk about a horsepower difference, and thats only with 3.8 liters!!

Grenading is caused by bad tuning and detonation (weaker parts when power gets to the pretty crazy levels), water/meth can most definitely help stop detonation and thus stop the grenading.

Alky is great cause its kind of like nitrous. Its not always running, so you are efficiently using it only when its needed. Race gas on the other hand is being burnt the whole time.

I use alky to turn up the boost and timing at will and think with the new L92s and LS7s, use over 400ci, 1000rwhp on 93 octane is very obtainable!!