scf02

Hi was hoping someone may be able to help me in regards to meth/water injection. I was looking at buying a setup for my car here in australia but wanted to check about dangers of it and if it would be an advantage for me. I run a 383 ls1 with a centrifugal blower at 15lb and 8.5 cr and a fmic. It currently is about 670rwhp but am about to change cams. I live in the tropics so my IT is normally 89 degrees or so on dyno runs with AT about 2-4 degrees lower on average.
Any suggestions on which kit to use would be appreciated.

TurboAv

iTrader: (6)

Are you going with more boost? With 15psi and 8.5cr you shouldn't need it. Unless you just want the cooling properties of it. Most people here use it as a fueling crutch so they can run more boost than pump gas allows. With 8.5 compression I think you could probably even increase it to 18-20psi safely. Plus don't you guys have higher octane pump gas than the US?

TurboAv

iTrader: (6)

Check out this thread for recommendations.

https://ls1tech.com/forums/forced-in...injection.html

scf02

our pump fuel is 98ron. Wont risk going over 15lb with the alloy block atm. Yeh I thought it may help with cooling due to ambient temp here.

blk00ss

iTrader: (66)

Those "alloy" blocks you speak of have been well north of 1000whp and way more boost than your running.

CarsandWomen

iTrader: (19)

1700 whp TT at like 35psi was the last one,aluminim 6.0 built by VASpeed. id crank that boost!!!

scf02

Sounds like i should be able to push a bit more boost in safely. I did some numbers and should be able to run 2 less teeth on the blower cog and keep the impeler speed within the recomended maximums.

CarsandWomen

iTrader: (19)

What blower are you running?

scf02

vortech v7ysi

ChevyChad

iTrader: (50)

Are you saying that your IATs are 89°C? If so, that is 192°F, and yes, I would definitely be looking into adding meth to lower the IATs if I were you!

CarsandWomen

iTrader: (19)

ooo yeah good point, most of us are in the United States and think in Farenheit, if your thinkin in celcious let everybody know

scf02

Nope i converted from celsius to farenheit

TurboAv

iTrader: (6)

Crank that beast up some more then! Procharger said I should be able to run 16-18psi with my 9.25:1 motor on 91 octane pump gas.

What size pulleys are you running and what is your max impellar speed? Also what is the gear ratio in that blower?

blue00ZZleeper

iTrader: (5)

The cooling mist methanol kits are easy to install and work well. I love meth inj now lol

scf02

I run an 82 tooth on crank and a 32 on the blower. Max impeller speed is 65000 and internal ratio is 3.45:1

Best car has made is 704rwhp but i am about to put in a new lsr centrifugal cam and also swap the engine with my other car which has its driveline set up a bit better for running down the quarter. So just looking to squeeze as much out as i can fairly safely.