TB cleaning and a little more .. install complete, UPDATE - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 10-08-2006, 04:51 PM   #11
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Quote:
Originally Posted by harofreak00
any theme going for this car?
nice work on the TB
What do you mean by theme? Colors...particularly engine? If so, yes, I have a theme! Not the same as the original DrugRunner though. This will be more like the Cutlass was. I'm almost 'done' with the engine bay (I'll always be working on it though). I'll be posting pics when the EMs are coated.
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Old 10-08-2006, 06:22 PM   #12
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HOLY HELL! Can you say WHIIIIIIINE!? This intake made a bigger difference than I thought it would! I never even heard a HINT of this whine before. Gotta love Boost!! Oh man, what did I start...I'll be needing a smaller pulley very soon!
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Old 10-08-2006, 06:25 PM   #13
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Quote:
Originally Posted by bonnie94ssei
HOLY H***! Can you say WHIIIIIIINE!? Oh man, what did I start...I'll be needing a smaller pulley very soon!
Famous last words before emptying the wallet
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Old 10-09-2006, 01:23 AM   #14
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What did you use for a solvent for your TB? I know Castrol SuperClean and carb cleaner work, just curious.
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Old 10-09-2006, 10:20 AM   #15
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Quote:
Originally Posted by Sully1742
What did you use for a solvent for your TB? I know Castrol SuperClean and carb cleaner work, just curious.
I used Intake Cleaner, don't remember the brand though, I think CRC. Took me one whole can to clean the TB plus a bit from a second can. Cleaned the IAC w/ a toothbrush and I soaked the MAF screen in intake cleaner as well..but I will be removing that today to see what difference it makes.
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Old 10-09-2006, 01:05 PM   #16
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TB looks good. Very good work on blending the corners and polishing. You should feel quite a bit of improved throttle response, perhaps a wee bit on the top end as well.
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Old 10-09-2006, 01:09 PM   #17
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Looks very nice What are your thoughts on the MAF screen removal after testing?
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Old 10-09-2006, 01:14 PM   #18
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Regal, MAF screen should only be removed AFTER installing an intake with smooth walls and a cone filter. Your MAF sensor relies on laminar airflow to get a proper reading.

The screen isn't much of a restriction, and it does serve a purpose. Without it, the PCM may not see the correct (actual) airflow and you could end up running lean. That'* very bad news on a supercharged engine.

Any MAF screen removal on an L67 should be followed by a few scans.
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Old 10-09-2006, 02:41 PM   #19
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To add onto WillWren'* mention of scanning etc.

In some cases the car may idle great, run awesome, and the lean condition adjusted by the PCM through the O2 sensor. However... that adjustment, if too high will get noticed by a 96+ PCM and my experience is that while the MAF couldn't read all the air..the O2 did and set a P0171 Lean Bank One code.
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Old 10-09-2006, 02:56 PM   #20
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Quote:
Originally Posted by Regal_Kid_05
Looks very nice What are your thoughts on the MAF screen removal after testing?
I haven't removed it yet. I want to give the PCM time to learn the intake. But as stated it shouldn't be removed until the intake is added since the stock airbox creates a lot of turbulence. I removed it with the stock airbox for the heck of it and it resulted in a horrible idle.

Bill, I have not pushed it hard yet on the highway, just a few short heavy throttles up to 40. So I don't know how much high end I have gained. I will investigate that tonight. But it does have a very incredible whine, and great throttle response! It accelerates smoother as well, IMO.

I did not test the cleaned/P&P'd TB before I put the intake on. It would have been nice to see the difference it made stock, but I was in a hurry to get that intake on after 6 months of being completely stock.

And as far as scanning goes...I need a scan tool before I even get the smaller pulley...I'll put that on my birthday list which is coming up really soon!
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