Captain Green

I have been contemplating getting and installing a Water/Methanol injection bottle and nozzle from summit racing, but I dont know if they're worth it. Anyone has this installed and are they reliable?

RicK T

I think you'll get more responses in C6 Tech/Performance. Guys over there use this stuff.

http://forums.corvetteforum.com/c6-t...rformance-101/

c6rod

If you are not running a supercharger you would be wasting your money. I have tried them. They can get you more HP with a blower because they allow more boost pressure without detonation.

Vasta

You need a S/C

peter pan

Worked great on my boosted C5

theofel

Works best with boosted cars...but alot of guys are using them on n.a. as well. If your in an area that has low octain fuel ...the meth will help bring the octain up. If your in a hot weather enviorment the meth will help cool. If you race your car the meth will allow you to kick-up the timing for more power. It works on all engines..just that it's an expensive mod for a n.a. engine. Money could be better spent. But if you have done every thing else and want that extra kick...go for it.

MARSC6

If you really want an alky kit at least get one designed for your car.

http://eastcoastsupercharging.com/Alcohol%20Kit.html

Captain Green

Well My mods are an England Green Mayhem CAM and Kooks with a 4.10 gear and street tune, over 480rwhp, no S/C, just normally aspirated!

JoesC5

I remember back in 1957 when my uncle had a Crosley Hot Shot with alcohol/water injection and it wasn't supercharged. It was pretty common back then because high octane gasoline wasn't readily available when you had a 10:1 CR engine.

NYC6

Just curious, what does the meth actually do in your circumstance? You dont need it for detonation.

NYC6

10:1 compression wasnt high by the standards of the time. A bone stock 57 Chevy V8 had 10.5:1 compression and other cars were higher than that. Also, the leaded gasolines of the day had a much higher octane rating than the measly 93 they give us today.

gibear2k5

x2

JoesC5

The only "bone stock" 1957 Chevy(and 1958, 1959 and 1960[11.0]) with 10.5 CR was the 283 HP fuel injected engine. Do you have any idea how few of those engines were produced. The " bone stock" 1957 220HP, 245HP, 250Hp and the 270HP engines had 9.5 CR. In 1956, the 210HP and 225 HP engines had 9.25 CR, In 1955, they were 8:1 CR.

How about the 1957 Ford. The base V8's had 8.6 or 9.1:1 CR and the top engine had 9.7:1 CR.

How about the company that produced the fasted and most powerful production car in 1957, the Chrysler 300C. It's 392 CI hemi engine had 9.25:1 CR.

It wasn't until 1962 that 10.5 CR was normal. Before that, only special high output engines(all brands) that were designed primarily for racing, had high CR.

The Crosley Hot Shot was built from 1949-1952, when compression ratios above 8:1 were unknown in production engines and high octane gasoline was extremely rare. Yet, people were building high compression engines(for the times) around 10:1 CR in their personal cars and using alcohol/water injection was a way of keeping their engines alive.

The octane ratings of today, (R+M)/2, are different from the ratings back in the 50's/60's where they were either RON or MON. Generally, a 1950's/60's gas with an octane rating of 97 would be the ~equivalent of a 93 octane rating of today.