When I bought my car the cooling fan was put on a switch. I like it that way because I can control it. Does this affect the performance of my car?
------------------
'88 IROC TPI 355, fully balanced, 9.75:1 compression, fully ported '70 truck heads(for now), Harland Sharp Roller Rockers, Comp Cams TPI cam, fully ported '90 speed density TPI with '86 base so it fits older style heads, Crane AFPR, Flowmaster 3in. exhaust, Edelbrock TES headers, all emissions equipment is still intact, plan on burning my own chips, many more mods and parts on the way as time and money permits =(
Best E.T. with TBI 305: 16.11 @ 82mph
Haven't been to track with new motor
Won bracket races at Numidia Raceway with my '70 Nova
In memory of Dale Earnhardt, I'll miss cheering for that black #3 on raceday!!!
------------------
'88 IROC TPI 355, fully balanced, 9.75:1 compression, fully ported '70 truck heads(for now), Harland Sharp Roller Rockers, Comp Cams TPI cam, fully ported '90 speed density TPI with '86 base so it fits older style heads, Crane AFPR, Flowmaster 3in. exhaust, Edelbrock TES headers, all emissions equipment is still intact, plan on burning my own chips, many more mods and parts on the way as time and money permits =(
Best E.T. with TBI 305: 16.11 @ 82mph
Haven't been to track with new motor
Won bracket races at Numidia Raceway with my '70 Nova
In memory of Dale Earnhardt, I'll miss cheering for that black #3 on raceday!!!
TGO Supporter
No, unless your engine is hot, you've bypassed the existing wiring completely and your forget to turn it on.
TGO Supporter
The ecm doesn't care. The fan is an "output" not an "input". In fact, if the wiring to the fan(s) are disabled, the ecm doesn't even know if they are not working. All it knows is that it turned on the fans and "thinks" they are working.
About the only thing (and it is REALLY minor), is that you don't get a little extra rpms and IAC counts. The ecm bumps up the IAC 2 counts on the SD eprom and maybe (I would have to double check) adds a few rpm to the idle. This is put a little extra "voltage" to the system when idling so there is enough current. The fan(s) don't draw enough current to be of any great concern.
[This message has been edited by Glenn91L98GTA (edited March 13, 2001).]
About the only thing (and it is REALLY minor), is that you don't get a little extra rpms and IAC counts. The ecm bumps up the IAC 2 counts on the SD eprom and maybe (I would have to double check) adds a few rpm to the idle. This is put a little extra "voltage" to the system when idling so there is enough current. The fan(s) don't draw enough current to be of any great concern.
[This message has been edited by Glenn91L98GTA (edited March 13, 2001).]