is it possible to get another 500rpm to 1,000 rpm out of the rev-up engine via ecu-reflash w/o internal engine mods?

 

the utech will help you on that one..

 

prolly so...jus do a search..

 

dont do it. valve float.

 

there are available ecu reflashes for the non rev-up engines that raise the rev limiter to 7100. thats roughly about a 500 +/- rpm increase from stock. so, why cant the rev-ups get another 500 bump as well. valve train cant handle another 5-600 rpm? whats the deal?

 

Not only will the car not make any more power as it did less then 500 Rpms ago, there is a high risk of valve float. It can be done, but i dont reccomend risking it.

 

Not with the Rev up engine, also there is no need to increase the red line limit since our cars makes HP until 6800 rpm.

 

are the valvetrains different between rev-up & non rev-up engines?

 

slightly different.

 

valve float? I certainly haven't floated my valves. I, TS ECU, and many 5AT Vortechs have raised our redlines from 6600 to 7100. I haven't heard of one case of anyone floating their valves under boost or NA. I would think the rev-up heads are much stronger than the non-rev ups, but I wouldn't raise the redline unless I was making power. I got mine raised, because with the SC the revs comes up too fast. I believe hitting the rev limiter under boost is more dangerous than over revving, although I try to shift at 6800 rpm.

 

squeezing another 500 rpm out of the engine wont yield any more power gains? even with reflash or utec?

 

anyone one else have any input?