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- LT1 Based Engine Tech (https://www.camaroz28.com/forums/lt1-based-engine-tech-9/)

- - Tach is off (https://www.camaroz28.com/forums/lt1-based-engine-tech-9/tach-off-330046/)

ChrisUlrich

01-04-2005 01:11 PM

Tach is off

My RPM tach is off... can that be fixed?

All4Chevy

01-04-2005 01:14 PM

Re: Tach is off

Put it back on?
Bill

turbo_Z

01-04-2005 01:29 PM

Re: Tach is off

Mine is about 200 rpm fast and it seems like most are that way. Thats not the problem is it?

Injuneer

01-05-2005 12:14 AM

Re: Tach is off

You might want to get a little more specific..... like how much is it off at what RPM?

Z95m6

01-05-2005 12:21 AM

Re: Tach is off

Quote:

Originally Posted by turbo_Z

Mine is about 200 rpm fast and it seems like most are that way. Thats not the problem is it?

Ditto, they are all off about 200 rpms higher than actual. At least on the cars i've seen.

ChrisUlrich

01-10-2005 01:12 PM

Re: Tach is off

Sorry about the delay...

Well I KNOW for sure that its off 150 at idle because Ion set it at 850 and it says 1000.

In 4th when I dynoed it shows I pulled off at 5450 when the teach read 5800.

And I think, according to the gear calculator... everything else is just off.

I redline 1st at about 43 or so? 2nd at about 62 or so? Forgot 3rd and 4th... I just think its really off.

Injuneer

01-10-2005 01:20 PM

Re: Tach is off

The numbers you quote seem "normal".... 150-200rpm high at idle is very common. And mine would indicate 6,000+rpm with the stock rev limiter, which was set at 5,886/5,805 rpm.

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