Nitrous help!
Nitrous help! Hey guys, need some help from a few guru's is possible.
Im running out of fuel when I hit it with a big shot (the tuner explained that because I was not there during time of testing)
And the cold fusion kit im running is a little off on the correct pills for a optimum A/F ratio. So we've had to mix and match to get it to play nice, very inconvenient but doable...
So currently we have a .040 fuel jet in with a .065 nitrous jet. Which means we have a 225HP fuel pill and a 165HP nitrous pill.... This picked up 85rwhp on the dyno. NOT THRILLED at that.
Im no longer at the shop, but wanted to play around with adjusting the fuel jets to lean it out a bit. I cant go crazy without a A/F gauge but wanted to see if it was okay if I switched the 40 fuel pill for a 38 fuel pill and run it at the track. Tuner told me the nitrous tune was conservative and safe, so i imagine I would be okay, just wanted to check.
Thanks for any help.
Im running out of fuel when I hit it with a big shot (the tuner explained that because I was not there during time of testing)
And the cold fusion kit im running is a little off on the correct pills for a optimum A/F ratio. So we've had to mix and match to get it to play nice, very inconvenient but doable...
So currently we have a .040 fuel jet in with a .065 nitrous jet. Which means we have a 225HP fuel pill and a 165HP nitrous pill.... This picked up 85rwhp on the dyno. NOT THRILLED at that.
Im no longer at the shop, but wanted to play around with adjusting the fuel jets to lean it out a bit. I cant go crazy without a A/F gauge but wanted to see if it was okay if I switched the 40 fuel pill for a 38 fuel pill and run it at the track. Tuner told me the nitrous tune was conservative and safe, so i imagine I would be okay, just wanted to check.
Thanks for any help.
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Your problem is in bold. It can't keep up on the bottle. Install a racetronix pump kit or get a stand alone if you decide to spray bigger in the future.
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Verdad Gallardo Its got the 225 fuel pill in now and the af ratio is perfect now. It had the 75 pills making 100rwhp because it was way lean, the fuel pump may be running out.....but the jetting is way off and that's what needs to be addressed first I'd think.
i would check the pump...and fuel pressure regulator....seen too many setups run bad, then change the pump and its a whole new animal...not to mention running nitrous on a bad pump is even worse!
vendor here sells a walbro 255lph for 110 bucks...cheap insurance if you ask me...and a hotwire kit for 65...or make one yourself for even cheaper...
http://www.sho-mespeed.com/index.php...ry_pathway=629
The kit makes it run lean, it doesn't matter if its a 75 shot or a 150 shot, the jetting is off.
Its got the 225 fuel pill in now and the af ratio is perfect now. It had the 75 pills making 100rwhp because it was way lean, the fuel pump may be running out.....but the jetting is way off and that's what needs to be addressed first I'd think.
Its got the 225 fuel pill in now and the af ratio is perfect now. It had the 75 pills making 100rwhp because it was way lean, the fuel pump may be running out.....but the jetting is way off and that's what needs to be addressed first I'd think.
It's normal for the psi to drop a little, but if it drops below 50psi and continues while on the spray, then there's your culprit. 
The fuel pressure was checked during the first trials. And was at the correct psi. The pressure has not been checked since.
Going back to the first attempts we used a 100 pill for n2o and 150 pill for fuel and we got 65rwhp gained at the wheels with acceptable af ratio. Obviously this is screwed...
If its the fuel pump at this point then okay, but the nitrous numbers should of remained constant since day one.
Its a cold fusion kit designed for the ls2 ( i have an LS3 ) when ordering from CF they assured me it would not be an issue. So Thursday we'll find out. Hopefully it's something simple.
I just want a 100rwhp to be a 100rwhp with the correct jetting and no compensation for lack of fuel.
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Joined: Jun 2013
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You're probably right but I have learned one thing over the past few years from my dad-it's better to go bigger now, because you will want more later.
i think thats possibly a little overkill...but if thats what it takes!!!
i would check the pump...and fuel pressure regulator....seen too many setups run bad, then change the pump and its a whole new animal...not to mention running nitrous on a bad pump is even worse!
vendor here sells a walbro 255lph for 110 bucks...cheap insurance if you ask me...and a hotwire kit for 65...or make one yourself for even cheaper...
http://www.sho-mespeed.com/index.php...ry_pathway=629
i would check the pump...and fuel pressure regulator....seen too many setups run bad, then change the pump and its a whole new animal...not to mention running nitrous on a bad pump is even worse!
vendor here sells a walbro 255lph for 110 bucks...cheap insurance if you ask me...and a hotwire kit for 65...or make one yourself for even cheaper...
http://www.sho-mespeed.com/index.php...ry_pathway=629
oh man! i thought we were talking ws6 here...like your avatar pic!