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Nigel

Well-Known Member
TurboBuick.Com Supporter!
Joined
Jun 16, 2001
Messages
1,145
I have the alkycontrol kit. I have the kit installed and in order to test it, I have not upped the boost. I have the car tuned for 15-16 psi, 21 degrees of advance, no knock or an occasional bit of knock retard, generally less than a degree of retard with the alky off. When the alky kit is on with denatured alcohol, I am getting quite a few knock counts and 4-8 degrees of retard. O2s are in the low to mid 800s. Boost and timing are the same as above.

Thanks,
Bruce
 
Maybe you are getting a rich knock ? When I pop the test button, after a second or two, my o2's shoot up into the mid 8's..Right out of the box on my car(i realize every car is different), I was able to dial it up to 21psi before getting any KR... Where is your dial set ?(ie:12 oclock, 1 oclock, etc and have you changed any of the internal settings) Perhaps you are dumping too much alky in for the low amount boost setting you have. Another thing I learned is that most "street" chips will be pushing too much fuel and combined with the alky will give you a rich condition..Also, have you contacted Julio ? He along with others on the board have been a great source of help in getting my car running well with his kit..
 
Thanks for the reply.
I have not had a lot of time to do much investigation. The settings are as delivered save for turn on set to 10psi. I am using an NOS nozzle since it was already installed in my up pipe. If I decrease the alcohol the knock goes up. I am baffled. Why would less alcohol cause knock? If I turn the alcohol up, the car drowns and stumbles. My laptop is on its last legs, so I have not been able to record any data, but the knock counts go through the roof with the alcohol, and the knock is audible. I am concerned because I am not in a position to start any tuning. I have the translator so I can back out fuel, but I don't want to go any further if I have knock with low boost and timing. If anybody has any insight please post.

Thanks,
Bruce
 
You really should talk to Julio....I dont know how the extender chips work with alky kits..I opted for a TT alky chip and I know that he pulls some fuel out to keep it leaner, meaning that if you are dumping alky in with a "normal" amount of fuel, you will drown it out, so to speak..Maybe that NOS nozzle is not the right size ? ..Again, I'd call Julio and talk to him, no doubt he'll be able to set you straight
 
Bruce,
Typically if the kit is installed as it comes with the M15 nozzle, and it turns on at 4-5 PSI.. with a correct chip, there are no issues. Unless there is something else underlying.

The NOS nozzle your using may be too large? Fueling may be set too high? There may be an issue with your translator/MAF?

Is the extender chip for alky?

Have you pulled WOT fuel out of the translator/extender?

Also increasing "turnon" decreases alcohol at a set amount of boost. Maybe your not getting enough.

Having changed the turnon, changing the nozzle, not clear on the chip.. you have some things to sort. Call me and I hopefully can walk you through the issues. Also get me your scanmaster readings at idle. Like BL, TPS, MAL, ...

HTH

Julio
 
Julio,
What is a convenient time to call?
Everything is in spec. TPS is .42v, almost all of the BLMs are in the 110s to 120s. It is not an alky chip. The car runs well in its current street tune. I have not backed out any fuel, but I may try a little. I cannot record a direct scan run until I find another computer.

I guess what concerns me is the car does not knock with zero alcohol. Would a small amount of alcohol cause engine knock while maintaining my current settings. If it should not then I have some other problems.

Thanks,
Bruce
 
Originally posted by Nigel
Julio,
What is a convenient time to call?


almost all of the BLMs are in the 110s to 120s. It is not an alky chip.

Thanks,
Bruce

Anytime during the day :)

Your BLM's are in lower side meaning the computer thinks your running rich. Get them to be +- from 128.

If your fuelpressure is setup higher than needed, when the system fires it will make the motor overly rich.

Get an alky chip is the last advice.

Somethings up.. your going to have to work on it(means swapping parts) ;)
 
Julio,
Before I called I figured I would do some investigation. I am in slow motion these days with extracurricular activities like car tuning, but anyways I pulled the NOS fan spray nozzle and activated the pump with 20lbs of air to the MAP and sprayed the nozzle in a tub. The NOS nozzle does not work well, the alcohol dribbles out unless the pressure is way up, and then no mist. I should have installed the supplied HAGO nozzle right off the bat instead of taking a short cut. I also tried the HAGO nozzle in the tub, nice spray pattern, excellent mist. I am running 20 psi with the extender, pulled out fuel to get close to high 700s, still a tad rich as I am more like 800.

I noticed in your tuning notes a mention of translators developing a miss, on DS you can see the MAF drop and everything else spikes, very strange. Any firm causes that you know of, or has Bob Bailey come up with a fix. Thanks for the good info on the board, I am making progress. I am going to pick up some methanol once the denatured alcohol runs out and keep on tuning.

Thanks,
Bruce
 
Originally posted by Nigel

I noticed in your tuning notes a mention of translators developing a miss, on DS you can see the MAF drop and everything else spikes, very strange. Any firm causes that you know of, or has Bob Bailey come up with a fix. Thanks for the good info on the board, I am making progress. I am going to pick up some methanol once the denatured alcohol runs out and keep on tuning.

Thanks,
Bruce

Think I gots the fix thanks to Peter Bailey(Bobs brother) and my buddy Mike. We did a hot wire for the translator on Mike's car and it fixed the stumbles at 5-8 PSI it had with the translator.

I sent the first one to Peter to test on his car.. wont know till late this week.

If it works on a couple other cars... i'll offer it as a plug-n-play deal.

Glad to see you going forward.

Julio
 
THE FIX

The fix for the turn-on stumble with the Translator does work.
Thanks Julio!
 
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