What size jets

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Jul 3, 2009 | 01:47 PM

jeff37110

Thread Starter

2nd Gear Member

Joined: Mar 2009

Posts: 276

From: Tennessee

What size jets

what jets do I need to run a 125 shot? I lost my chart with jet sizes on them.

Jul 3, 2009 | 01:49 PM

01GT4.6

6th Gear Member

Joined: Mar 2007

Posts: 5,726

From: Slidell, Louisiana

seeing that your car has been tuned by MPH, it'll depend on what jets Tim tuned it to. My car on a 100 is 52n/33f if that helps any.

Jul 3, 2009 | 01:56 PM

jeff37110

Thread Starter

2nd Gear Member

Joined: Mar 2009

Posts: 276

From: Tennessee

Thats what my is now just wanting to up it a litte..I will retard the timing with the tuner..I was thinking its like 57n/33f

Jul 3, 2009 | 02:01 PM

CAMDUP

3rd Gear Member

Joined: Aug 2007

Posts: 682

From: Delawhere?

this might help... http://www.dynotunenitrous.com/store...ousjetcalc.asp

Jul 3, 2009 | 02:09 PM

jeff37110

Thread Starter

2nd Gear Member

Joined: Mar 2009

Posts: 276

From: Tennessee

Thanks, bro!! I was way off.lol

Aug 1, 2009 | 11:54 PM

Gene K

5th Gear Member

Joined: Jun 2007

Posts: 2,176

From: Decatur AL USA

Quote:

Originally Posted by jeff37110

Thanks, bro!! I was way off.lol

I know Im a month late but thought I should post for future reference.
My Nitrous Express reference shows the following 4.6L 2V PI/3V Jetting

USE AT ON RISK! I am somewhat suspect of this chart. Most other engines need a 5 fuel jet change instead of 2 in this range.

100 rwhp = 52/33
125 rwhp = 57/34
150 rwhp = 62/35

Last edited by Gene K; Aug 2, 2009 at 12:07 AM.