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Old 12-07-2016, 11:07 PM   #1
mitch t
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Edelbrock supercharger potential

Ok, so here is the question.

I'm currently running an Edelbrock supercharger kit, (which I am extremely happy with) in the as supplied configuration.

I would like to know how much more power I can make with this kit on the stock engine. is there a bunch more power waiting for me, or should I leave it alone?
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Old 12-07-2016, 11:17 PM   #2
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Are you looking for how much power the blower can make, or how much power the engine can hold?

Delicious made 420 whp on E85. It was a built engine, but it had the same compression ratio as stock.
http://www.ft86club.com/forums/showthread.php?t=112955

They recommend building the engine around 350 whp. People have made 5-600 on the OEM block, but I don't know how long that'll last.
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Old 12-07-2016, 11:17 PM   #3
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Some people are running 350+ on the stock motor with no headaches, some aren't so lucky. You could pick up some power buy running ethanol and that should be relatively safe. Unfortunately, there is only one way to find out how much power YOUR motor can handle.
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Old 12-08-2016, 09:11 AM   #4
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Answer: There's a bunch more power waiting for you, and you should probably leave it alone
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Old 12-08-2016, 01:22 PM   #5
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You're in California, stick with the emissions legal setup you'll need in ~2 years when you get your first smog check. I don't know how available E85 is down South, up here it's more trouble than it's worth imo for a car that's daily driven.

I'd call up Delicious and see what they can get out of it with just a tune, iirc it's a noticeable step up, but keep it easy to revert back to CARB legal in an afternoon imo.

https://www.delicioustuning.com/node/483

Looking at this, 20hp from the tune, another 10+hp from downsizing the pulley, swap pulley back and reflash for smog, swap back for funsies. If you can put e85 in it you're up a total of 90hp from the regular CARB tune, but I don't know what it'll take to do it safely (injectors, flex fuel rig, heat management now that you're double stock power), how that'll fly during an emissions test, and I wouldn't push any more out of a stock block.

@whataboutbob is probably your best resource if you're still autocrossing it, seems nice enough, but I don't actually know the guy.
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Old 12-08-2016, 01:38 PM   #6
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You're in California, stick with the emissions legal setup you'll need in ~2 years when you get your first smog check. I don't know how available E85 is down South, up here it's more trouble than it's worth imo for a car that's daily driven.

I'd call up Delicious and see what they can get out of it with just a tune, iirc it's a noticeable step up, but keep it easy to revert back to CARB legal in an afternoon imo.

https://www.delicioustuning.com/node/483

Looking at this, 20hp from the tune, another 10+hp from downsizing the pulley, swap pulley back and reflash for smog, swap back for funsies. If you can put e85 in it you're up a total of 90hp from the regular CARB tune, but I don't know what it'll take to do it safely (injectors, flex fuel rig, heat management now that you're double stock power), how that'll fly during an emissions test, and I wouldn't push any more out of a stock block.

@whataboutbob is probably your best resource if you're still autocrossing it, seems nice enough, but I don't actually know the guy.

Yea, what I'm looking for is the reliable power limit on 91 octane, with the stock engine internals. I do need to keep smog in mind, so I would like to avoid doing anything that is too hard to undo once every 2 years or so.

Interesting to see that folks are getting 400 plus from this supercharger unit, though. right now i am trying to build a company, so not too many spare $$ laying around, but its nice to see that the blower will be ready to make some pretty big power as soon as I can afford to build an engine for it.

is Bob running an Edelbrock? did he get rid of the Sprintex?
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Old 12-08-2016, 03:55 PM   #7
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is Bob running an Edelbrock? did he get rid of the Sprintex?
Ah, I might be totally mistaken then, idk why

But yeah, sounds like a slightly smaller pulley and tune is what you're looking for, nice ~30-ish bump over CARB trim according to them. Maybe I misread and the smaller pulley is no bueno on 91, idk.

Good luck, nice to see someone thinking modestly and not another 'yo I NEEEED 300 whp, how do I get it'
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Old 12-09-2016, 02:09 AM   #8
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Bob runs an Ace A/350 header now. NA.
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Old 12-09-2016, 02:41 PM   #9
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Ah, I might be totally mistaken then, idk why

But yeah, sounds like a slightly smaller pulley and tune is what you're looking for, nice ~30-ish bump over CARB trim according to them. Maybe I misread and the smaller pulley is no bueno on 91, idk.

Good luck, nice to see someone thinking modestly and not another 'yo I NEEEED 300 whp, how do I get it'
You might be giving me too much credit. 300 to the wheels does have a nice ring to it.
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Old 12-09-2016, 08:08 PM   #10
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Bob runs an Ace A/350 header now. NA.
Correct. I do have the Delicious FF kit so E85 does make a noticeable difference in power, even NA.

I sold my Sprintex (Innovate) kit. I'm not totally sure what the next boost solution will be but I'm shooting for 400WHP on a mustang on E85.
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Old 12-09-2016, 08:13 PM   #11
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I'd leave the boost level the same and just get a Delicious Flex Fuel kit if you want to make a bit more power safely.
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Old 12-12-2016, 01:18 AM   #12
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I'd leave the boost level the same and just get a Delicious Flex Fuel kit if you want to make a bit more power safely.
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?
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Old 12-12-2016, 02:50 AM   #13
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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?
What do you call big and how much you want to spend????
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Old 12-12-2016, 11:17 AM   #14
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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.
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