E85 and N20.. Quench and timing questions..

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Jan 3, 2013 | 01:41 AM

LIL SS

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From: San Jose area

E85 and N20.. Quench and timing questions..

Just curious, who is spraying and using E85?

How big of a hit are you spraying?

Any idea what your quench is set at?
IE gasket thickness and how far in/out of the hole is your piston at top dead center.

Thanks in advance.

Jan 3, 2013 | 10:01 AM

Neal@NitrousOutlet

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From: Waco, TX

Quote:

Originally Posted by LIL SS

We have a pretty good amount of people spraying big shots on E85. You really just jet up 25-28 percent.

Jan 3, 2013 | 10:17 AM

LIL SS

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From: San Jose area

Neal, I'm not worried about the fueling side of things, I have that handled. The thing I am curious about quench.

I have the heads off right now and am on the fence about running a tighter .030-.033 quench (.040 gasket which would put me at 13.4cr) or putting it a bit wider at say .050ish and milling the heads to achieve my desired compression of 13.4.

The thought here is that the added quench volume makes things a litle less efficient and and allows you more resolution in your timing table. IE each degree of advance is less drastic with the wider quench than it would be to the tighter quench.

Check the advanced section for a thread that is currently being discussed. https://ls1tech.com/forums/advanced-...l#post17026259

I'm just trying to find out where people are setting quench and if it is relative to how big of a shot they are spraying and if it is even wider due to E85 taking up more volume.

Jan 10, 2013 | 08:00 PM

MustangLS

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I'm using both but I'm running a stock 5.3 with ms3 cam. I've run a 150 shot and a few partial passes on the 200 shot while working through fuel issues.

Jan 11, 2013 | 12:18 AM

camscam02

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I would always run more quench on a nitrous motor. Gives you room in the tuneup, tuning window goes away as you tighten it up. You can always jet up for what you lost, which isnt gonna be much when you can more jet. Keeping the heat to a minimum is key is keeping these motor living. Ofcourse im talking a good amount of nitrous

Jan 11, 2013 | 06:59 PM

BOOSTEDcatfish

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Im very curious bout this topic. Im going to a stand alone and bumping my shot way up so, Im on the fence about running 110 or e85

Jan 11, 2013 | 07:14 PM

blackonblacksls

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I have sprayed a 24 jet direct port with a 51 jet nossle. Pistons set at 0 and a 52 gasket. No problems even with a lot of compression. But I don't have much timing in it.