TBI for a 3.4 V-6 crate Motor

Mon May 31 18:43:58 GMT 1999

This is a multi-part message in MIME format.

------=_NextPart_000_0007_01BEAB72.904ADF80
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

I have a 3.4 L GM V-6 in my Jeep Cherokee....this engine is a bored and =
stroked 2.8 with a revised cam (same engine is used in Camaro and =
minivan apps).   I got a rotten TBI 2.8 S-10 Blazer engine and stripped =
it of its manifold and accesories including HEI electronic advance =
distributor.  I also have the ECU (service number 1227429).  I'm pricing =
out harnesses to replicate GM's  and need to know if the ECU will be =
thoroughly confused by the 20% increase in displacement and need =
reprogramming.  I have a the Holley 3210 400cfm throttle body (direct =
OEM replacement for Delco 220, which looked pretty well ragged out) .

I guess it boils down to two things:

1. Do I need to get the ECU reprogrammed (trucks are similar in weight, =
function, and gearing, only big difference is 3spd in mine  vs 4spd OD =
automatic in the Blazer) to handle the increased displacement? I have =
the cam specs for both engines if that is neccesary to make the call?
2.  Any recommendations for NEW harness sources?  I want all of the =
sensors (including VSS) wired up and full control of emmissions =
equipment like OEM.

Thanks

Brandon

------=_NextPart_000_0007_01BEAB72.904ADF80
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2314.1000" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>I have a 3.4 L GM V-6 in my Jeep =
Cherokee....this=20
engine is a bored and stroked 2.8 with a revised cam (same engine is =
used in=20
Camaro and minivan apps).&nbsp;&nbsp; I got a rotten TBI 2.8 S-10 Blazer =
engine=20
and stripped it of its manifold and accesories&nbsp;including HEI =
electronic=20
advance distributor.&nbsp; I also have the ECU (service number =
1227429).&nbsp;=20
I'm pricing out harnesses to replicate GM's&nbsp; and need to know if =
the ECU=20
will be thoroughly confused by the 20% increase in displacement and need =

reprogramming.&nbsp; I have a the Holley 3210 400cfm throttle body =
(direct OEM=20
replacement for Delco 220, which looked pretty well ragged out) =
.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I guess it boils down to two =
things:</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>1. Do I need to get the ECU =
reprogrammed (trucks=20
are similar in weight, function, and gearing, only big difference is =
3spd in=20
mine  vs 4spd OD automatic in the Blazer) to handle the increased =
displacement?=20
I have the cam specs for both engines if that is neccesary to make the=20
call?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>2.&nbsp; Any recommendations for NEW =
harness=20
sources?&nbsp; I want all of the sensors (including VSS) wired up and =
full=20
control of emmissions equipment like OEM.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Brandon</FONT></DIV></BODY></HTML>

------=_NextPart_000_0007_01BEAB72.904ADF80--