2000 z28

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Oct 26, 2015 | 08:48 PM

kresseguie

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2000 z28

Have a 2000 z28 75000 miles. Just recently put slp lid and ssra kit. Other than that it's completely stock. It runs 9.5 sec at 76 mph in the 8th. Clearly something is wrong but can't figure why I'm not getting a lot of power. The back o2 sensors are pulling up in codes but I don't think that would effect the performance. Any ideas on why I'm not getting the power I should and what I can do to help my car out.?

Oct 27, 2015 | 07:10 AM

UMI Sales

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I'm "Not" an engine authority but i'm pretty sure when you have bad o2 sensors it adds fuel and retards timing either way it would hamper performance.
I'm sure a few guys will chime in here and help you out.

Craig

Oct 28, 2015 | 12:46 PM

Chris25

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From: Clearwater, FL

How bad was your 60ft? And when you put the lid on did you install a K&N filter ? They have been known to foul the maf up. M6 or A4? What was the DA?

Oct 28, 2015 | 02:04 PM

kresseguie

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2.4 and no I kept my stock filter

Oct 29, 2015 | 10:06 AM

Chris25

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Well to be honest that 60ft is really hurting you get it down to a 1.9 1.8 and you will see way better times. Is this car auto or manual autos always trap lower.

Oct 29, 2015 | 11:10 AM

mshadow

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The 2.4 60' is hurting your ET a lot.

Oct 29, 2015 | 03:22 PM

dannyz

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From: olympia, wash

My car when stock was a 2.73 geared rearend, and ran right about where yours is, if I remember right.
I think my best pass was like a 13.8? lol

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Oct 31, 2015 | 01:26 AM

dannyz

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From: olympia, wash

Quote:

Originally Posted by Redf02rmula

Guys it was spinning ABSOLUTELY zero. He had 305 Nittos on there. The motor just acted like it was bogging down in first

If it's a 2.73 geared rear, his time's are fine.
My car had almost zero wheel spin with nitto 255? dr's, and ran like a 13.8.
Didn't even shift outta first gear until like 50mph.
So doing the math, [assuming 2.73 gear's], he is not even into his powerband until well past the 60' mark.
A stall, as mentioned above, will make all the difference in the world.