Edelbrock supercharger potential

[whataboutbob]

Originally Posted by mitch t

How was the FF kit to install?

I assume pump and injectors?

Man I really want to pick up another engine to build a little bit.

Do you have any thoughts on compression ratio, if I'm looking to go "big" , power wise?

The kit is very easy to install. I'd contact Delicious Tuning directly and discuss. They can provide guidance on what is needed to support the FF kit at your desired power level.

[CSG Mike]

Originally Posted by mitch t

How was the FF kit to install?

I assume pump and injectors?

Man I really want to pick up another engine to build a little bit.

Do you have any thoughts on compression ratio, if I'm looking to go "big" , power wise?

How big?

[scraejtp]

Originally Posted by wparsons

One thing to watch with a twin screw blower is how the tune works down low if you start cranking up the boost. A turbo or centrifugal blower will build boost linearly and not try to load up the engine too much at lower rpm. A twin screw blower can be much trickier to tune down low and can blow an engine easier even if the peak hp is the same.

Turbos being known for building boost linearly, great joke.

[Bfranklyn86]

Originally Posted by wparsons

One thing to watch with a twin screw blower is how the tune works down low if you start cranking up the boost. A turbo or centrifugal blower will build boost linearly and not try to load up the engine too much at lower rpm. A twin screw blower can be much trickier to tune down low and can blow an engine easier even if the peak hp is the same.

Although it makes sense to suggest that mid range torque from the twin screws should blow more engines, is that actually what has been demonstrated on our platform? Since I've been paying attention (not that long admittedly) I've seen no blown cosworth/harrop/edelbrock set ups and only a couple of sprintex ones (which are known to run hot).

I anecdotally hear of far more turbo and centrifugal SC set ups going bang than the twin screw.

[wparsons]

Originally Posted by Bfranklyn86

Although it makes sense to suggest that mid range torque from the twin screws should blow more engines, is that actually what has been demonstrated on our platform? Since I've been paying attention (not that long admittedly) I've seen no blown cosworth/harrop/edelbrock set ups and only a couple of sprintex ones (which are known to run hot).

I anecdotally hear of far more turbo and centrifugal SC set ups going bang than the twin screw.

Talk to any tuners that have tuned the bigger sprintex blower...

[Yoda]

Have not heard of any JRSC casusing any catastofic engine failure. Correct me if I am wrong.

[whataboutbob]

Originally Posted by Yoda

Have not heard of any JRSC casusing any catastofic engine failure. Correct me if I am wrong.

I have a buddy that had a JRSC C30 on a stock motor that shoved #3 rod all around making swiss cheese.

[Yoda]

Originally Posted by whataboutbob

I have a buddy that had a JRSC C30 on a stock motor that shoved #3 rod all around making swiss cheese.

Welp then there is that.

[mitch t]

Originally Posted by whataboutbob

I have a buddy that had a JRSC C30 on a stock motor that shoved #3 rod all around making swiss cheese.

I'm not sure one broken engine is really evidence of anything. if it becomes a trend, that is another matter...

i know folks that could break an anvil, so no matter how good you make your stuff, someone is going to figure out how to wreck it.

[Irace86]

Seems like these power threads pop up all the time, and the conversation is the same. Ugh.

[Matt@Cosworth]

thats because folks don't like the answer

[strat61caster]

Originally Posted by whataboutbob

I have a buddy that had a JRSC C30 on a stock motor that shoved #3 rod all around making swiss cheese.

If you're willing to divulge, was that an off the shelf setup or one that was pushing more power?

Keeping a close eye on the CARB legal FI kits, one is probably in my future when I'm satisfied with my autox adventure.

[whataboutbob]

Originally Posted by strat61caster

If you're willing to divulge, was that an off the shelf setup or one that was pushing more power?

Keeping a close eye on the CARB legal FI kits, one is probably in my future when I'm satisfied with my autox adventure.

It wasn't an off the shelf kit. Stock boost but had a FF kit.

[mitch t]

Originally Posted by Irace86

Seems like these power threads pop up all the time, and the conversation is the same. Ugh.

Originally Posted by Matt@Cosworth

thats because folks don't like the answer

Not sure what you guys are getting at.

My OP was asking what I can expect reliably w the stock bottom end and fuel system, (sounds like about 300max) and what the blower would be capable of with a built bottom end and fuel mods (probably more than I need)

I don't want to spend a bunch of $$ on a tune, only to find that it either doesn't make much power, or is too aggressive and causes an engine failure.

Nor do I want to build a motor and fuel setup, if the blower is running out of headroom to take advantage of it.

I think everyone has been pretty informative, and all their answers seem pretty reasonable to me.