[Gmecm] V8 speedo calibration

[Chris Reynolds]

I did the SYTY cluster into my S15 GMC Jimmy.  You will need to repin over to the SYTY connector and add a couple of wires.   It has been a while since I did it, but it was not that hard to figure out with both wiring diagrams in front of me.   The details are a little fuzzy in my memory, but IIRC you have to add a wire to the MAP sensor for the Vacuum/Boost gauge to function.   It also has to be running on a 2 bar MAP to be accurate.   Mine was running a turbo 3.4 with a reprogrammed 749 so it already had the 2 bar MAP.  I know that I also had to run 1 wire to the coil for the tach as well.

kenneth.zink at hotmail.com wrote:  Yes I did, and thank you.

----- Original Message -----
From: "Steve Ravet" 
To: 
Sent: Sunday, 14 January, 2007 23:47
Subject: RE: [Gmecm] V8 speedo calibration



> -----Original Message-----
> From: gmecm-bounces at diy-efi.org 
> [mailto:gmecm-bounces at diy-efi.org] On Behalf Of 
> kenneth.zink at hotmail.com
> Sent: Wednesday, January 10, 2007 10:30 AM
> To: syty at syty.org; S-Series; V8 S-Series; GM ECM; H-A-S-T-E
> Subject: [Gmecm] V8 speedo calibration
> 
> I will be needing to install my SyTy speedo soon into my S10 
> blazer but need to calibrate it for a V8 first. Can anybody 
> tell me which resistors I need to change and what they need to be?

Did you mean tach?

I don't know for sure but I think the answer is in the S-10 V8
conversion manual from jagsthatrun.com. Or, there's an S-10 v8 forum,
v8s10.com or s10v8.com or something like that, the answer may be there
also.

--steve
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