CAT600

What's the deal with the 4000 rpm rev limit, when your stopped, clutch in and 1st gear selected?, does this apply to all BOSS engined cars or utes only. Is it possible that it's there to protect the m86 from grenading itself?

quatermileman

its more like to stop the engine flying apart,things get out of control when they are free spinning ,there is a lot of valves in these engines to bend

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BA Pursuit no195 best in black

bossxr8

I think it's to stop people dialling up 5800rpm and dumping the clutch, most likely some sort of driveline protection strategy.

shane3

I know in my "04" GT there is a rev limit of 3000 rpm when the car is in neutral, to stop u dumping it into drive at 5500 rpm !

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Bluprint BA GT 2004 Model - Mods: Tinted Windows, Premium Sound, BBS Mags, 245/35R19 fronts, 285/30R19 rears, BMC POD Filter, SS cold air induction, custom 4" ram air induction kit, More to come..

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CAT600

shane3, yours is an auto I take it, by the way you described "dump it into drive", I'm pretty sure that a manual 03 GT-P I test drove o/night did not have this function. Either way, it certainly aids take off (3/4 throttle and slide off the clutch).

XRFPV8

manuals have a 3000rpm limit

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PHANTOM BA XR8 UTE, AUTO, UNICHIP, APS TUNED 229 RWKW ET:13.47.

Rods Rocket, Boss n/a 290 Unichip Tuned by APS et:12.6@110 Mph
We are all inclined to judge ourselves by our ideals; others, by their acts.

CAT600

Mine is definitley 4000, Maybe 4100

BOSSGT

Easy to fix disconnect the clutch sensor on the pedal. Then the thing wont know that you have depressed the clutch.

Elmer Fudd

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MICHAEL.

galaxy xr8

Why would you want to be dumping the clutch at these rev's anyway.

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AU II XR8
Herrod mod's,mmmn.
XW Wagon 221-2V,
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CAT600

Nobody said anything about dumping (there is no point when on 17"/18" steet radials), but rather easing it out. Is there a better way to get these utes off the line than say 40 - 50% throttle, but engine held at 4000, while the throttle effectively modulates open as the load comes on? (begins movement). As for disconnecting the microswitch on the clutch lever, 1) It would likely cause an over-rev as you went to change gears while the cruise control was on (same as knocking it out of gear while cruise is on) and 2) The reason I cranked this thread was to get a general feel as to whether people such as "Rodderz" etc were finding it a handy launch function on the strip. Galaxy xr8, If you are wondering why I dont do this for myself, the ute only has less than 1000 km on it.