Ruby's New Years ReVolution
01-24-2010, 08:37 AM
#46
Drifting
European Car Magazine did a series of articles on building up a 3.2 similar to what Ed is doing. Check out the links on the RH side for the other articles in the series.
http://www.europeancarweb.com/projec...ork/index.html
They did a beautiful job and spent $$$. RW HP turned out to be around 243 I think. Looks like a fun build but the HP/$$ ratio favors a 3.6 964 or 993 motor conversion.
http://www.europeancarweb.com/projec...ork/index.html
They did a beautiful job and spent $$$. RW HP turned out to be around 243 I think. Looks like a fun build but the HP/$$ ratio favors a 3.6 964 or 993 motor conversion.
Here's a response from Steve Wong when I sent him the dynojet numbers from my 3.4 so he could fine tune a chip
Definitely outstanding numbers - although SAE 251 rwhp for a Motronic 3.4 would definitely be eyepopping. Jeremy sent me the Dynojet files for the first iteration of chip tuning, and here are the results, opened with my Dynojet software, SAE corrected. The data show the ambient temp was 81 degrees, 7% humidity, and barometric pressure at 30.27 in-hg. SAE correction is 0.97. SAE Corrected value is 244 rwhp at appx 6300 rpm at an AFR of 13.0-13.1. That's Ralph's 3.5 territory. Must be that 93 octane gas out there. With a little fuel tweaking, we can extract a couple extra hp in the 5000-6000 range.
For comparison, here's Jeremy's 3.4, in blue, compared to Ralph's 3.5, in red, compared to a bone stock 88 3.2 with a euro premuffler and stock chip, in green.
For comparison, here's Jeremy's 3.4, in blue, compared to Ralph's 3.5, in red, compared to a bone stock 88 3.2 with a euro premuffler and stock chip, in green.
01-24-2010, 12:38 PM
#47
Good luck with the build Ed, looking forward to your results! I went 3.4 on mine with 10.3:1 98mm Mahles, DC20 cams with final CR cc'd at 10.45:1. Makes a great street engine and has no problems hitting the redline - lightweight clutch housing just adds to the flexibility.
Few more details below - featured with my brother last year in 911PW
http://www.jzmachtech.com/images/new...ust_911_PW.pdf
LNEngineering do some slip-fit 100mm Nickies, though don't know anyone who has fitted these.
All the best
SP
Few more details below - featured with my brother last year in 911PW
http://www.jzmachtech.com/images/new...ust_911_PW.pdf
LNEngineering do some slip-fit 100mm Nickies, though don't know anyone who has fitted these.
All the best
SP
01-24-2010, 02:40 PM
#48
Rennlist Member
Thread Starter
The thing about a conversion is the unknown. I've heard of two recently where the used transplant motors offered up some surprises to the new owners, resulting in expensive rebuilds on top of the already significant rebuild costs.
01-25-2010, 08:43 AM
#50
If you're interested, here are some great engine rebuild threads on impactbumpers.com. The first link is a project thread, the engine rebuild starts the end of page 26. You'll want to skim over all of the small talk in-between but it's an excellent thread.
http://www.impactbumpers.com/forum/i...ic=4599&st=520
This second thread is an excellent engine rebuild done on a 3.2. (With lots of pics!)
http://www.impactbumpers.com/forum/i...showtopic=8055
Enjoy!
http://www.impactbumpers.com/forum/i...ic=4599&st=520
This second thread is an excellent engine rebuild done on a 3.2. (With lots of pics!)
http://www.impactbumpers.com/forum/i...showtopic=8055
Enjoy!
01-25-2010, 09:42 AM
#51
Awesome Ed, get that video cam ready for the first run.
01-25-2010, 10:15 AM
#52
Race Car
I would hesitate before going the 3.6 conversion route. I think you would lose a bit of the drivability. The 3.6 makes great torque but won't quit have the song your motor will. That means something to me. Furthermore, there have been concerns about the 3.6, certainly in early cars, not having a stiff enough chassis for the gobs of torque - Ruby is a targa. Your car is by no means a Frankenstein car and now would be a bad time to start down that road. You have developed the car too far to start hacking. Thats my .02.
01-25-2010, 03:16 PM
#53
Track Day
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Ed,
I have a SC (with a freshly rebuilt engine!) that may have a bad exhaust valve from an exhaust leak. Compression test tomorrow.
If I have to tear down down the engine that far, I'd like to take the opportunity to go to larger P&C, and perhaps 964 cams. Is this reasonable for a 3.0? How big can I go without having to do major modifications or megabucks?
I have a SC (with a freshly rebuilt engine!) that may have a bad exhaust valve from an exhaust leak. Compression test tomorrow.
If I have to tear down down the engine that far, I'd like to take the opportunity to go to larger P&C, and perhaps 964 cams. Is this reasonable for a 3.0? How big can I go without having to do major modifications or megabucks?
01-25-2010, 03:43 PM
#54
Rennlist Member
European Car Magazine did a series of articles on building up a 3.2 similar to what Ed is doing. Check out the links on the RH side for the other articles in the series.
http://www.europeancarweb.com/projec...ork/index.html
They did a beautiful job and spent $$$. RW HP turned out to be around 243 I think. Looks like a fun build but the HP/$$ ratio favors a 3.6 964 or 993 motor conversion.
http://www.europeancarweb.com/projec...ork/index.html
They did a beautiful job and spent $$$. RW HP turned out to be around 243 I think. Looks like a fun build but the HP/$$ ratio favors a 3.6 964 or 993 motor conversion.
01-25-2010, 07:46 PM
#55
Rennlist Member
Thread Starter
Ed,
I have a SC (with a freshly rebuilt engine!) that may have a bad exhaust valve from an exhaust leak. Compression test tomorrow.
If I have to tear down down the engine that far, I'd like to take the opportunity to go to larger P&C, and perhaps 964 cams. Is this reasonable for a 3.0? How big can I go without having to do major modifications or megabucks?
I have a SC (with a freshly rebuilt engine!) that may have a bad exhaust valve from an exhaust leak. Compression test tomorrow.
If I have to tear down down the engine that far, I'd like to take the opportunity to go to larger P&C, and perhaps 964 cams. Is this reasonable for a 3.0? How big can I go without having to do major modifications or megabucks?
Go to Pelican and search using "Ralph" and "3.5L". He posted up more info on his build on Pelican than he was able to put in the magazine articles.
01-25-2010, 07:58 PM
#56
Rennlist Member
Thread Starter
Good luck with the build Ed, looking forward to your results! I went 3.4 on mine with 10.3:1 98mm Mahles, DC20 cams with final CR cc'd at 10.45:1. Makes a great street engine and has no problems hitting the redline - lightweight clutch housing just adds to the flexibility.
Few more details below - featured with my brother last year in 911PW
http://www.jzmachtech.com/images/new...ust_911_PW.pdf
LNEngineering do some slip-fit 100mm Nickies, though don't know anyone who has fitted these.
All the best
SP
Few more details below - featured with my brother last year in 911PW
http://www.jzmachtech.com/images/new...ust_911_PW.pdf
LNEngineering do some slip-fit 100mm Nickies, though don't know anyone who has fitted these.
All the best
SP
01-26-2010, 01:09 PM
#59
01-26-2010, 01:28 PM
#60
On a different chassis dyno recently i hit 273 at 6025rpm and 245 ftlbs at 5098 running on 5/40 300V Motul.
SP