RJW

Are the KB's hard anodized?

Whipple teflon coats their rotors, at least on the new ones. Teflon is compatible with methanol.

0Jeff @ TPE

Yes...

There has been quite a few instances where the teflon begins to come off after heavy methanol/alcohol use..

Z06PSI

Hence the reason for my questions and the main reason I was selling my meth kit. I thought teflon coating was a norm in PD blowers but I now know that it is not. I should be good with your setup Jeff as it should run relatively cool IAT's.

obxfunn

Never been to the track. I drive the car for my enjoyment so I could care less about what it runs. I have goofed off with a few 10.7 Cobras and didn't have a problem going around them. Maybe one of these days I will take it to the track.

LV Vette

Don’t be so concerned with reaching 600rwhp. With the low end torque, it will feel like 600 plus RWHP.

JMHO,

Clayton from Las Vegas

Scubanme

Pipedream

Hard to tell, below is a link to my recent Torque Tube removal, a few weeks ago... The bushings looked perfect! This is after 80+ dyno pulls, 20 or drag strip runs, including an ATI supercharger (512/469 hp/tq) and SEVERAL head/cam combinations... These (my bushings) are the larger 12mm bolts version compared to your 10mm version...

http://forums.corvetteforum.com/show....php?t=1788980

99redhtvette

well i just wanna know that with somewhere around 550rwhp to 580whp then wil my car be able to start shutting up these stupid lil cobras around here running high 10's!! lol im going for a pretty good setup i think though...what would u guys add to it?

RJW

about 100 more rwhp and torque...

just for insurance...or in case you can't drive??

just kidding...

99redhtvette

i take offense..joking im thinking about keeping the 3.42 gear ratio rjm..do u think 3.73 would be a lil better?

RJW

I'm actually rjw...but.....I would stick with what you got , find the Cobras and see who's left standing....higher gears and you might as well lock out 1st and 2nd.....

jmo

99redhtvette

sorry been putting back a few tonight, and with the gears im probably just going to stick witht he 3.42's, anything else i should look at getting with this setup?

mjs1988

Why do so many run meth on kb ls1/ls6s? The cobra guys avoid it at all costs, my best friend has a 03 cobra, 2.8H 17psi, the things unreal makes 600+rwhp and doesnt need meth. I would think with a good forged bottom LSx 10-15psi would make 700+rwhp easy. Not to mention KB just came out iwth the new bar and plate heat exchanger which has to pick up alot of the slack too. I am planning on buying a KB for my IROC/LS1 combo and i'm looking into these detail, any opinions? Comming from a nitrous car filling the bottle is expensive and a pita, filling meth to me seems like another inconvienence.

Mike

RJW

jmo, but there is ONE big difference between ford and chevy twin screw kits and that is the under sc heat exchanger.

It's like beating an old horse, but worth mentioning again, so here goes

The Cobra/lightning under sc HE's are around 5" thick. Cooling charge air with an AW setup requires time. It can't be done as effectively with a 2" thick or less HE, which is common on ls roots and twin screw kits.

The good news is that the lsx platform seems to make more power with less boost and many spray meth at higher boost levels to keep IAT's in check.

mjs1988

AHH i see thanks for mentioning that rjw, i wasnt aware of that. Them are the things i'm trying to find out about ahead of time b4 i make my decision to go KB vs procharger or turbo. The LS platforms just dont have the room for the under sc heat exchanger? What about running a bigger front heat exchanger? Wont make any difference in cooling or not enough of a difference? At what boost level is it recommended that meth should be used on built forged low compression (8-8.5:1) 370ci iron motor and how much power can be made b4 hitting that point? Just a rough number i'm looking for.

thanks, mike

RJW

I wouldn't go that low in cr personally. Do a search for max boost on ls motors....they really don't like 25 or 30 psi especially without a lot of work. front mount heat exchanger makes a difference but not like under sc. It all helps, but is it cost effective?

Meth is just a last resort and especially for engines with high compression and boost

0KBTECH

Hi Mike.

We've been using alcohol/water/methanol injection for years; since 1976 with our Buick V6 Turbo kits.

Alcohol/water/methanol injection by itself positively, absolutely will not, cannot "make HP". It merely allows the engine to run more boost - approx 3 psi and/or more ignition timing. It is a matter of choice and trends, but it does work, and a side benefit is it will clean the combustion chamber of carbon deposits.

Our experience says an extra 2-3 psi using it. Jeff's 800 HP Corvette we tuned ran 16 psi on methanol injection.

The reason Cobra guys don't run it is because they do not really need to since their compression ratios are much lower than the C5 engine. Note they can run up to about 17psi where the C5 guys can only run about 7-8 psi - this is due to compression ratio differences. You do not need to run injection unless you want to - that is up to you. It is not a requirement. You are right - alcohol/water/methanol injection is an inconvenience

Regards,

Ken

Z06PSI

It is nice to see KBtech on the board. I feel better about my purcahse already.

NITRO UK

Roger that.