Timing retard with ATI & intercooler
06-09-2005, 01:41 PM
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Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, 355" LT1, LT1
Transmission: T5, Zf6, 4L60E
Axle/Gears: 3.42, Dana44 3.45, 3.23
Timing retard with ATI & intercooler
Folks that have ATI intercooled blowers. Does ATI give you a device like a BTM to retard ignition timing, or do you run normal stock timing and just add fuel via FMU ?
Just trying to compare how ATI does it, vs Vortech, vs OEM.
-- Joe
Just trying to compare how ATI does it, vs Vortech, vs OEM.
-- Joe
06-09-2005, 03:20 PM
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Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, 355" LT1, LT1
Transmission: T5, Zf6, 4L60E
Axle/Gears: 3.42, Dana44 3.45, 3.23
Originally posted by Lo-tec
No timing retard, just the FMU.
No timing retard, just the FMU.
OEM stuff retards timing, and vortech uses a BTM.
Retarding timing under boost spikes cylinder temperature. I'm wondering if ATI has the right approach. Since i'm intercooled, I'm thinking of ramping out timing to max around 3200rpm and leaving it there.
-- Joe
06-09-2005, 04:24 PM
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Car: 1992 Z28
Engine: 350 L98 w/ D-1SC
Transmission: POS 700-R4
Those air to air intercoolers allow you to run full timing all day long. ATI has got some quality parts. 
Btw Im still using the FMU
Btw Im still using the FMU
06-09-2005, 05:02 PM
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Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, 355" LT1, LT1
Transmission: T5, Zf6, 4L60E
Axle/Gears: 3.42, Dana44 3.45, 3.23
Originally posted by CRZYTRN-92Z28
Those air to air intercoolers allow you to run full timing all day long. ATI has got some quality parts. Btw Im still using the FMU
Those air to air intercoolers allow you to run full timing all day long. ATI has got some quality parts.
Btw Im still using the FMU In regards to the FMU, I ditched that a while back. I like being able to tune fuel, rather than assuming the fuel requirements will be linear with boost.
-- Joe
06-09-2005, 07:27 PM
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Car: clapped out 84Z
Engine: 355 efi roller
Transmission: tremec TKO
In regards to the FMU, I ditched that a while back. I like being able to tune fuel, rather than assuming the fuel requirements will be linear with boost.
-- Joe [/B]
-- Joe [/B]
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