Write up for meth install
Thread Starter
Burning Brakes
Joined: Sep 2008
Posts: 1,169
Likes: 22
Write up for meth install
Well I have been looking all over the search help, nothing at all. I'm looking for a write up that I saw a few months back with someone showing how they installed their meth kit using their windshield washer fluid tank. Any direction will help, I want to do the snow meth and use the WW tank. Thanks
Burning Brakes
Joined: Nov 2005
Posts: 1,228
Likes: 44
From: Houston MN
St. Jude Donor '10
Melting Slicks
Joined: Apr 2007
Posts: 3,290
Likes: 0
From: Willow Springs IL
I just installed an Alky control kit on my C6. It was a royal PITA to raise up the washer reservoir and install the pump, but it is doable. I spent over 8 hours from start to finish, but I took time to fabricate a better pump bracket than the one supplied with the kit. The instructions with the Alky kit were pretty good and the customer support was very helpful with a few questions I had.
Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
Melting Slicks
Joined: Apr 2007
Posts: 3,290
Likes: 0
From: Willow Springs IL
C'mon......Installing a clutch in a C5 or C6 is a royal PITA. Getting to the fuel pump on a C6 is a royal PITA. Drilling a couple holes to move the WW reservoir up to make room for the pump and modding the bracket is a one, maybe a two beer job. Now theres lots of other stuff to do for the install but it's all relatively easy.
Burning Brakes
Joined: Dec 2006
Posts: 1,005
Likes: 90
From: FT. LAUDERDALE FL
Well I have been looking all over the search help, nothing at all. I'm looking for a write up that I saw a few months back with someone showing how they installed their meth kit using their windshield washer fluid tank. Any direction will help, I want to do the snow meth and use the WW tank. Thanks
http://forums.corvetteforum.com/c6-t...lications.html
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Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
You can use the IAT spark table to either add timing when the IATs drop or tune the main spark table on the meth and use the IAT table to take spark out if the IATs increase due to a meth failure. There is lots of power to be gained by increasing the timing and it's still safe IMO.
There is no good way (that I know of) to do the same thing with the AFR. IE: There is no IAT PE table to add fuel if the IAT's increase due to a meth failure. If you tune the VE or MAF on the meth then at that point you have a meth dependent tune. I use an Aeroforce Interceptor as insurance against this. I have it set up to alert me if the boost is over 3# and the AFR is over 12.
For reference I was at 620 RWHP pre-meth @ ~10# and 14 degrees, 11.5:1. I added the meth and timing and took the restrictor plate out of my ECS kit and left the AFR alone, just let it go way fat on the meth (100% meth). I got 705 RWHP @ 14#, 19 degrees with the AFR in the low to mid 10's. I began leaning out the tune and got up to 728 RWHP and the top end was still fat. Had I leaned out the whole RPM band (like I am now) I would probably been closer to 750.
There is no good way (that I know of) to do the same thing with the AFR. IE: There is no IAT PE table to add fuel if the IAT's increase due to a meth failure. If you tune the VE or MAF on the meth then at that point you have a meth dependent tune. I use an Aeroforce Interceptor as insurance against this. I have it set up to alert me if the boost is over 3# and the AFR is over 12.
For reference I was at 620 RWHP pre-meth @ ~10# and 14 degrees, 11.5:1. I added the meth and timing and took the restrictor plate out of my ECS kit and left the AFR alone, just let it go way fat on the meth (100% meth). I got 705 RWHP @ 14#, 19 degrees with the AFR in the low to mid 10's. I began leaning out the tune and got up to 728 RWHP and the top end was still fat. Had I leaned out the whole RPM band (like I am now) I would probably been closer to 750.
Melting Slicks
Joined: Apr 2007
Posts: 3,290
Likes: 0
From: Willow Springs IL
I'm not looking for any power at all from the meth kit. It was simply for prevention against a batch of bad fuel. My IAT sensor is still before the meth nozzle, so it won't mess with my existing tune at all. Do you think that it was overkill to install this kit? I am only making 570rwhp with 7psi max. I thought it may be good prevention against bad fuel or a bad BAP. I plan on changing the stock fuel pump when I replace the LS7 clutch with a Katech ZR1 clutch.
Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
Perhaps a little overkill but it certainly can't hurt. I would seriously consider moving the IAT. The LS1 sensor and breakout harness is cheap (DP or ECS sell them) and the extra timing would amount to a nice bump in HP at the lowest HP/$ ratio evar!
Melting Slicks
Joined: Feb 2006
Posts: 2,163
Likes: 5
From: Houston
I'm not looking for any power at all from the meth kit. It was simply for prevention against a batch of bad fuel. My IAT sensor is still before the meth nozzle, so it won't mess with my existing tune at all. Do you think that it was overkill to install this kit? I am only making 570rwhp with 7psi max. I thought it may be good prevention against bad fuel or a bad BAP. I plan on changing the stock fuel pump when I replace the LS7 clutch with a Katech ZR1 clutch.
Melting Slicks
Joined: Apr 2007
Posts: 3,290
Likes: 0
From: Willow Springs IL
I guess I could have done that, but the kit is already installed. Maybe down the road I will decide to re tune for more power. At least I will be ready for that if I want to.
Burning Brakes
Joined: Aug 2007
Posts: 950
Likes: 3
From: Chesapeake Virginia
Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
The IAT is built into the MAF on all C6's. You have to order an IAT breakout kit from ECS or DP which includes an older LS1 IAT, connector and harness. So it would go MAF --> Meth nozzle --> IAT --> TB. The tune will need to be calibrated to the new IAT sensor.
Melting Slicks
Joined: Apr 2007
Posts: 3,290
Likes: 0
From: Willow Springs IL
Well, I hooked everything up and it doesn't work. When I hit the "test" button on the controller the meth sprays, and the LED lights up on my gauge cluster. When I drive it and it sees 5psi of boost nothing happens. Any idea where to start? Everything seems to be hooked up right. I have tha MAP sensor tied in right where the gauge gets it's signal from and the gauge works perfectly. I should have never bothered with this damn meth system.
Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
You need to open what looks like a battery compartment of the main PAC unit that you plug the dial/test unit into. It has POTs for initial duty cycle and turn on PSI. There should be little black marks where the default settings should be. I would leave the initial at the default setting but you will need to ~calibrate the turn on. I have a 2 bar MAP so what I did was to remove my MAP and turn down the regulator on my air compressor and shoot it into the MAP until my HP Tuners read ~3 PSI of boost. Then I played with the dial until it turned on at 3 PSI. If you don't want to get fancy about it you can just play with the turn on dial until it turns on where you want it.
Melting Slicks
Joined: Apr 2007
Posts: 3,290
Likes: 0
From: Willow Springs IL
You need to open what looks like a battery compartment of the main PAC unit that you plug the dial/test unit into. It has POTs for initial duty cycle and turn on PSI. There should be little black marks where the default settings should be. I would leave the initial at the default setting but you will need to ~calibrate the turn on. I have a 2 bar MAP so what I did was to remove my MAP and turn down the regulator on my air compressor and shoot it into the MAP until my HP Tuners read ~3 PSI of boost. Then I played with the dial until it turned on at 3 PSI. If you don't want to get fancy about it you can just play with the turn on dial until it turns on where you want it.