Wondering if anyone has put a Rev-Up engine in a "Rev-Down" car?

Id love to move to a HR, or better yet the 37HR... but that is probably a nightmare of electrical obstacles.

Just starting to plan my next move is all.

 

Once a non-rev is fully built, does it really matter? I mean unless you're going in and messing with the cam timing, then the exhaust cam that the non-rev doesn't have would come into play.

 

.

 

You are right, it doesnt matter a whole lot. I am just considering building another engine, so I figured while I am at it... just an idea.

 

It definitely couldn't hurt.. What kind of EMS would you be using, and say you were using a piggy-back style ECU would you use an 07 to control the cam timing to take advantage of it fully?

 

my car has an FCON... i would assume just use the 03 harness and ECU in my car, letting the stock ECU control the intake cams, and then swap to a haltech and have the haltech control the exhaust cams?

 

That would be no problem, and the Haltech will control the intake cams too

 

what about the dual intakes on the hr and 37hr? wouldnt that be an issue if your going from a 03-05 FI car to a new dual intake engine?

 

phunk, you've already dumped enough money into the Z as is, can you really justify another 10k to do a swap that might net you another 30whp? nope.... if you really want more power, upgrade the turbos and up the boost and get another 200whp that way. but then again you really want a daily 700+ whp car? 500+ is enough, dont get greedy.

 

Wouldn't you need a RevUp harness and ECU?

 

I was thinking the same thing, except my 05 motor is NA. Just the thought of having an HR stroked and sleeved and TT is crazy IMO. im considering it......

 

I would love the HR motor with the dual intakes and countless other changes. But in that situation I am concerned with the compatabililty of it all. With a simple rev-up upgrade, I know there isnt much that is different. With the HR swap, I have no clue - I have never had my hands on a HR car. For all I know the motor mounts, crossmember, trans mounts, etc are all different. I suppose I could custom make mounts or adapters. But there could be a lot more involved, especially in the electronics and wiring.

I mean, I am pretty confident that I could control a Rev Up engine with my stock harness and ECU since so much is the same (with the exception of the exhaust cams, insert haltech here), but I am not sure if anything on the HR is the same. Can the signal to the throttle be spilt and sent to 2 throttles? Is the crank and/or cam signal patterns different? If too much is different, how compatable is the HR harness in a 03-05 car? I suppose I could always meet up with someone with a HR and compare the harness connections... but the HR swap could be potentially intimidating with diminishing return, especially if your talking about going all the way to a 37HR with VVEL

 

You've got me all wrong!

Its not really about upgrading for more power. My setup is currently capable of quite a bit more... I stopped at the power I had cause thats all I could get out of my 5psi wastegate springs. I am sure my car has a good 100rwhp just waiting for me to tune for a few more psi. As for a 700+ rwhp car... Eh, I am not exactly HP greedy... I have had a powerful Z for a pretty long time and never really cared much to make more power. I dont know if I would go for 700+ even on the next engine unless I go with a different turbo system.. hmm.

For me its more about stuff, quality, technology, etc. I just like having cool ****. The Rev-Up is slightly cooler than a non Rev-Up. Since I am looking at going to 4.0L setup, I dont think it would cost me much more at all, if any at all (aside from a core), to build myself a Rev-Up rather than another 03... may as well.

However, I dont know how likely it is really since I need to pick up a Rev Up entire long block. If I can get a good deal on one, sure... but if I cant get one at a lowballer price, I can just pick up a bare 03 shortblock and get on my way. I am just playing with the idea and was curious if it had been done.

 

A lot of revup engines have the oil consumption problem. Sometimes you can get one pretty cheap.

I think changing to an HR would be much more difficult than changing to a revup. I think the block is taller... so you'd need to account for that in the motor mounts and probably an '07 hood... the wiring and ECU are different compared to the earlier motors... The ECU flash guys are still trying to reverse engineer the HR ECU, so it's not trivial.

 

^+1, but if you can wait, once the HR CAN signal protocols have been decoded, it may be more clear how cost-effective an HR swap would be. If the HR ECU is CAN-compatible with the older BCM and ABS modules, then it might not be too bad. Always tough to be an early adopter...

 

You guys are solid in your thinking, but!! What about controlling the HR motor with the older harness and ECU. When doing a motor swap, the cleanest way is to try and keep the same harness, extend or shorten any plugs needed, etc... If the crank and cam triggers patterns are the same, the 03 ECU would never know which engine its running.... the problem is then taking control of the added stuff. I have seen some guys try and just split the throttle signal to a pair of TBs... does that really work?

 

I believe that it can be done with a signal booster and/or post processor. Correct me if I am wrong but that is the conclusion Crawford came to a while back when they tried it.

 

Tim at SFR has done this on his car, maybe he can chime in if its not proprietary info.

 

wow big project comming"??

 

Wouldn't it be easier to just do away with the ECU all together and just rig up a dual throttle cable setup?