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Tech Area => General Buick Tech => Topic started by: Tim Hensley on July 31 2020, 02:09:17 AM

Title: New chip
Post by: Tim Hensley on July 31 2020, 02:09:17 AM
time for a different chip. I have a TT 6.1 and have a MAF translator 
Thinking of a Bailey Extender or TT 5.7.
Title: Re: New chip
Post by: reality on July 31 2020, 06:45:39 AM
They are both good.
I prefer the extender slightly tho because the computer controls the fuel at double or triple the 256 grams per second of a stock or TT chip which is an educated guess above 256.


Or get both and see which 1 you like.
I think TT sells both.
Title: Re: New chip
Post by: Steve Wood on July 31 2020, 11:06:44 AM
Read the instructions to both and see which makes most sense to you.
Title: Re: New chip
Post by: nocooler on July 31 2020, 02:55:59 PM
You have the 6.1 (WBo2) why go back to the 5.7 or extender?

I'd be looking at the sd2 chip :)
Title: Re: New chip
Post by: Forzfed on July 31 2020, 03:34:04 PM
You have the 6.1 (WBo2) why go back to the 5.7 or extender?
I as well.  What's not to like?
Title: Re: New chip
Post by: earlbrown on July 31 2020, 03:38:21 PM
Just turn off the WB tracking and you'll have a 5.7.

and save $125 on the downgrade.
Title: Re: New chip
Post by: Steve Wood on July 31 2020, 05:50:31 PM
The 6.1 is my recommended chip.  After helping William A. tune his car for several years and various chips, I really developed an affection for the 6.1.  One has to be really dumb to mess the tune up.  The most important thing is to have a wb that reads right.  I came to realize that tuning is not very sensitive on a ten second car and there is little need to stray far from Eric's defaults.
Title: Re: New chip
Post by: Tim Hensley on August 01 2020, 01:38:11 AM
Your all correct to put the 6.1 back in a box has to be the dumbest thing to do. It works so good. Set it and forget it. I’m obsess with my poor 60 foot time.  I try to get enough fuel pulled out to get the car to 60 it wants to knock in the top of 2ed just before the 2-3 shift and no improvement in 60. Turning WB off only gives control of fuel and spark in 1 and 2 together
Looks like the 5.7 will give me low gear fuel and timing  2-3-4 in the other window .I’m definitely to dumb to go SD.
Got more reading to do tonight.
Thanks for being a good place to express my dumb thoughts. And I do here your good wisdom
Title: Re: New chip
Post by: Scoobum on August 01 2020, 09:15:21 AM
Tim...turn off the alky and go with race gas at the track. You can throw a crapload of low gear timing at it and you won't get any KR. With loads of low gear timing it'll launch like no ones business.
Title: Re: New chip
Post by: Steve Wood on August 01 2020, 09:27:36 AM
After reading Russ/Melissa's write up, I am going to disagree.  :D

Leave the alky spray on and bump the timing.  That and a converter that gives you enuf rpm to build boost on the line will throw you thru the sixty foot line.

I would be sure to measure the instant center of the car to be sure it is not out ahead of the front bumper.  Then it's up to you LOL
Title: Re: New chip
Post by: reality on August 01 2020, 11:05:36 AM
I would agree with you Steve in general but from a previous post

Hard top all new bushings,even the GNX over the top with a GNX seat brace

I can hold 3200 easy been 3700 a time or to I’ll check my log book tonight
3100 @#15 is solid not trying to push through.
Title: Re: New chip
Post by: Tim Hensley on August 01 2020, 12:10:26 PM
Yes scoobum race gas out of the question to many $
How the garage project?
Title: Re: New chip
Post by: Steve Wood on August 01 2020, 12:38:43 PM
Quote from: reality
I would agree with you Steve in general but from a previous post

Hard top all new bushings,even the GNX over the top with a GNX seat brace

I can hold 3200 easy been 3700 a time or to I’ll check my log book tonight
3100 @#15 is solid not trying to push through.
Unfortunately, it's a bit difficult to debate when we are short of data.  I guess ultimately we need driveshaft rpm (which very few of us have) to compare against engine rpm to determine what the rear tires might be doing.  For poor people like me, a paint stripe on the tires and someone filming on both sides might be useful...or it may just provide confusion.  I think I computed some of his rpms vs mph altho that might have been some other car.  Some converters stall up well but slip too much internally after the hammer is dropped.

With regard to alky, guys seem to launch pretty well on E85 so I wonder if it is the alky or our tune that keeps us from launching hard when spraying alky.  Perhaps we should be pulling a lot more gas out initially rather than alky?

Then we have to consider track and tire conditions plus the weather.  It is not a simple mix and we don't have much in the way of data to compare it against.  If we had two more buicks running better 60' times, we might be more easily educated.  Or, in my case, probably not LOL
Title: Re: New chip
Post by: reality on August 01 2020, 05:43:04 PM
Just to be clear that quote was from Tim in Sept.
should be easy 1.4 sixty's.
The only difference between an alky launch or not was a little harder to get the rpm/boost up at the line on default.
Tim does say he doesn't like to sit at the line and build boost. 
Title: Re: New chip
Post by: Scoobum on August 02 2020, 10:09:21 AM
PL files I'm seeing you'll have to flash the convertor to 3950 to pull a low 1.5 launch. Bring up the gauge panel and use the arrows to bump the frames up one at a time. The MPH and RPM gauge are side by side. When you see the MPH go to 1...back it up 1 frame to zero. That's the RPM it's flashing too. Pulling low gear fuel and throwing the low gear timing at it has a dramatic effect on how the convertor acts upon launch.


Erics race chip on the default low gear timing and low gear fueling with the 16930 I had in my car...you could get out and run faster. Bump the low gear timing up 6-8 degrees and lower the low gear fueling to 770-780...and the convertor was a different animal altogether. Try as you might, you'll be hard pressed to find a better convertor than a 16930 for launch and 1/8th mile coupling when the low gear tune is dialed in.


Steve can describe in detail the physics and everything else involved in adding low gear timing and leaning low gear fueling in regard to launching. Steve, it'd be a great add on for your site.
Title: Re: New chip
Post by: Tim Hensley on August 02 2020, 01:41:16 PM
Going with the 5.7. Because it gives Me 1st gear  WOT fuel. And 1st/2ed  timing in cell 3.
This is cheaper than a converter.
The converter will flash all over but I understand it’s different power I’m throwing at it.
Car pulls hard after the 1/2 shift and back half of track moves really good.
I have never got past the low gear fuel and timing just think how it will go after I get fuel and timing in high gear.
Took it to a dyno last Wednesday to get a hp and torque numbers for reference. Left with more confusion. Wanted to make sure I wasn’t going way past it’s cam efficiency.
Title: Re: New chip
Post by: nocooler on August 02 2020, 01:47:17 PM
See if they’ll print you a copy of hp/tq with mph instead of rpm then it’ll look more normal 
Title: Re: New chip
Post by: Steve Wood on August 02 2020, 03:47:02 PM
you might try setting the 1/2 fueling to a leaner AF and see if that helps you get out of the hole better before you spend more money?  If leaning it down gets a better 60', then you know you are on the right track before you spend more chip money :)


the alky version of 5.7 might help?? 
Title: Re: New chip
Post by: Tim Hensley on August 03 2020, 12:57:26 AM
This is my 11.1 A/F setting in 1/2 and 10.8 3/4,same lousy 60 ft with rpm drop and flat line at 30 mph, after looking my KR was at the shift of 1/2 not the end of 2ed. I have no idea why it was having such a hard time tracking. My one and only try past 11.0 (11.0 no help) not much KR but it scared the hell out of me.
Title: Re: New chip
Post by: Scoobum on August 03 2020, 01:08:41 AM
Tim, can you post the file.
Title: Re: New chip
Post by: Steve Wood on August 03 2020, 09:30:16 AM
Not sure that is detonation? Has the reverse characteristic s to detonation with regard to shape of the curve.  Looks more like wheel hop or a bump in the track or car suspension? ??? ??

Insufficient data either way-need the file as Brad said and still might not know :)
Title: Re: New chip
Post by: Scoobum on August 03 2020, 04:16:47 PM
WB not tracking correctly could be due to a faulty WB sensor. As Eric says. Junk in...junk out. I've seen a ton of times where the WB sensor is fukd.



Title: Re: New chip
Post by: nocooler on August 03 2020, 04:54:50 PM
Is the wideband wired directly to the battery and configured properly?
Title: Re: New chip
Post by: Steve Wood on August 03 2020, 10:36:34 PM
I am pretty sure that is not detonation.  Strange that when the car goes to second, the mph barely changes for several samples while the rpm continues to accelerate.

Eric is really good at getting his chips close and one can usually spot a bad sensor by looking at the blm correction above the blm matrix on PL.  If it is off quite a bit (showing a big correction) then one can suspect the sensor.  
the Bosch sensors ain't worth a plug nickle.
Title: Re: New chip
Post by: Tim Hensley on August 04 2020, 06:22:42 PM
Ok you got me thinking scoobum has said more than one WB not jiving with NB.
Dyno shops 02 didn’t agree with mine ether. I don’t know just how it’s wired, but I mostly follow instructions from manufacturers. I keep adding to the fuel correction window to keep BLMs close to 128. You may be right garbage in garbage out.
Title: Re: New chip
Post by: nocooler on August 04 2020, 07:32:46 PM
You found your problem. 
does it read 14.5ish @ idle? 
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