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Extender + Thrasher + Alky= Different Results

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jamericaniSS

Member
Joined
Jun 6, 2003
Messages
350
Ok guys im kinda stumped on the different results i've have gotten. Here is the story:

Put on the Razor's Alky kit ran the regular thrasher chip (thinks its a 91 or 92 oct, says 92 on chip, but not sure) up till 23-24lbs, no knock, 75 degree night. I popped that chip out that night and put in the extender chip i got in the mail, 23/21, 98octane/alky, fp 45 line off, let the car and chip connect, did some test runs. I got the car up to the same 23-24lbs, 0 knock, o2's 780's-790's, happy as ever.

Scroll forward to a few days later. Went to school around 5:30 am, cold as snow, around 48-50 degrees. The car with extender starts picking up knock at around 8-10lbs, o2's in the 750's, WOW. Had the cold weather for a couple days, couldnt shake the knock. Even later on in the day, when it got a little bit warmer i could get up to a little more boost, but would start to get knock eventually, no 23-24lbs anymore.

I was thinking possibly, fuel pump(dont know which one is in there), chip, injectors (36lbs), maf (stock), alky pump, etc. So tonight temp. 63 degrees, full tank of alky, popped the thrasher back in, alky knob at 12, got her up to 23-24 lbs, 820 top of third, 792 was the lowest o2 deep in 4th, maf pegged at 255, ran out of a 7/8th tank of alky in 30 mins.

Now i know the thrasher chip is obviously less timing, hence why i could only get 15lbs on pump gas. Is this an indication that the 23/21 chip is too much for california 91 octane now, when it was good enough when i first put that very same chip in a week prior in warmer night temps. I really dont know anything else other than what i hypothesized so far. Does cold air get that serious with a higher timing chip. Since the chip is adjustable, im sure i can change it up a bit.

Sorry for the novel but i need all the input i can get
 
What gets me is the O2's in the 750 range at low boost. That is more than likely why its picking up knock.

These cars when the temp outside drops can get weird sometimes.

When you hit the test button on the controller did the car stumble? Typically while driving.. like cruising.. you hit the test it should make the O2's jump into the 800's. If thats happening.. the alky is spraying.

You reset the computer when you swapped chips, and you also set the switch in the translator to limiter OFF.. then drove the car around so it could relearn the new settings.. verified all your scanmaster readings were within normal ranges.. just making sure...

Also bring the car up to full operating temps before standing on the gas pedal. The hotter you can make the engine when cold outside.. the better the alky will work.
 
The 02's did climb when i hit the test button. I have held the test button in park and the cars begins to bog soon, so i know the alky setup is working, intake pipe very cold. While crusing when i hit the test button the o2's go up, cant remember off top what they go too.

The translator is not currently hooked up yet, that is tommorrows project. So i do not have the capability to add WOT fuel as of yet.

All i have really noticed is that the o2's drop much faster with the 23/21 chip as opposed to the thrasher 92 chip, weather conditions being the same. I can also get the boost higher with the thrasher chip in same conditions as opposed to the 23/21 chip.

I will update when i hook up the translator wires and adjust WOT fuel.
 
I hope he wasnt.. as you cant run the extender without the translator.. that would be a very bad thing :eek:
 
Razor said:
I hope he wasnt.. as you cant run the extender without the translator.. that would be a very bad thing :eek:

Well, well, im sorry to say i did have the chip in, if thats bad, then whoops :eek: . In fact i had the extender chip in, stock maf, translator not hooked up, 85 degree night, 23lbs, 782 o2's, alky knob at 1-2, 0 knock. I was not under the impression that i couldnt run the chip without the box, maybe i missed that in the instructions. :frown:

By the way when driving and i hit the test button my o2's dont jump in the 800's. I tried it today and it didnt happen as described above. The alky has to be spraying there is no way under the sun i could be running this much boost without it. The only time i know im spraying alky in the motor for sure is when im parked and i hold down the test button, the car bogs. Other than that, when i get into boost the turn led light comes on, and the boost increase light gets brighter.
 
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