12-07-2010, 04:48 AM
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#1
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Registered User
Join Date: Sep 2004
Location: Atlanta
Posts: 1,820
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update:
holyoak reminded me of the idle air control valve.......duh. i pulled it off to clean it & check it. it was rusted solid; i couldn't even move it by hand after i opened it up.
i dug out the one from the boxster engine, gave it a good cleaning, & popped it in the car. ran TERRIBLE!!! way worse off. i reset the DME & voila, buttery idle. running very well now.
keeps getting faster every day. i gave a check ride to a forum member last night (byron in atl); he agreed it's a little scary. much faster than either of us thought it would be.
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12-07-2010, 08:42 AM
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#2
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Registered User
Join Date: Jan 2009
Location: Arvada, CO
Posts: 229
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Good job, and congrats!
I have one question:
Since you installed a light weight flywheel, what precautions have you taken to prevent the crankshaft from going bye-bye?
Cracked cranks have been reported with light weight flywheels.
Especially track cars.
BC.
__________________
Its not how fast you go, or how expensive your toys are.
Its all about how big your smile is at the end of the day that truly matters.
'98 Silver Boxster, '08 Ducati 848, '89 Honda Hawk GT, '89 Honda Pacific Coast
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12-07-2010, 09:04 AM
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#3
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Registered User
Join Date: Sep 2004
Location: Atlanta
Posts: 1,820
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Quote:
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Originally Posted by Bladecutter
Good job, and congrats!
I have one question:
Since you installed a light weight flywheel, what precautions have you taken to prevent the crankshaft from going bye-bye?
Cracked cranks have been reported with light weight flywheels.
Especially track cars.
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no precautions at this point. i used a LWF on my old engine. when i take it apart to inspect, if it has a broken crank, you can bet i'll pull the LWF immediately.
i may go ahead & get a damped crank pulley. we'll see.
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12-07-2010, 12:42 PM
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#4
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Carnut
Join Date: May 2010
Location: Utah
Posts: 775
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I guess you do this anyway..... but after the initial runs do you plan to change the oil, say after a 1,000 mls?
__________________
'14 Boxster
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12-08-2010, 06:53 AM
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#5
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Registered User
Join Date: Jul 2008
Location: austin
Posts: 825
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Quote:
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Originally Posted by AndyA6
I guess you do this anyway..... but after the initial runs do you plan to change the oil, say after a 1,000 mls?
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When we do our M96 rebuilds
It's 20 min dump oil, inspect filter
250 mile dump oil & inspect
1000 miles dump oil & inspect
We keep the revs below 4k
Until the 1250 mark
Then drive it normally and change oil every 6k miles
In the big scheme of things
Oil is cheap
Mike
__________________
Drivers: '15 Panamera Hybrid (wife's), ' 01 996 GT2, 00 Boxster S, '96 993 Çab/Tip (wife's)
Race Cars: '75 911 RSR Replica & '99 Spec Boxster
mike@lonestarrpm.com
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12-11-2010, 05:34 AM
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#6
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Registered User
Join Date: Sep 2004
Location: Atlanta
Posts: 1,820
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since this engine is already broken in, i plan on a 1000 mile oil & filter change.
BTW, vBox dyno that gave my boxster engine 174HP at the wheels was used to dyno the new motor. 288HP! i think that may be a bit high, but it does seem to confirm my suspicion that i'm putting down a lot more than the stock 3.4's 299HP. this thing feels REALLY REALLY quick.
Quote:
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Originally Posted by seningen
When we do our M96 rebuilds
It's 20 min dump oil, inspect filter
250 mile dump oil & inspect
1000 miles dump oil & inspect
We keep the revs below 4k
Until the 1250 mark
Then drive it normally and change oil every 6k miles
In the big scheme of things
Oil is cheap
Mike
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12-11-2010, 06:11 AM
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#7
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Carnut
Join Date: May 2010
Location: Utah
Posts: 775
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Very nice! Maybe I missed this but what -if any- mods have been done to the engine which makes it put down so much HP?
TIA!
__________________
'14 Boxster
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01-31-2011, 10:02 AM
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#8
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Registered User
Join Date: Jun 2007
Location: Freeport, New York
Posts: 472
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LOL!!!
Does she have a sister?
Regards, Maurice.
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01-31-2011, 11:45 AM
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#9
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Registered User
Join Date: Sep 2009
Location: The City
Posts: 1,084
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So i understand that for the build you removed all secondary air stuff. Who took care of flashing the DME to ROW. I am interested in removing the secondary air system and o2 crap.
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01-31-2011, 11:50 AM
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#10
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Registered User
Join Date: Sep 2004
Location: Atlanta
Posts: 1,820
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Quote:
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Originally Posted by Lobo1186
So i understand that for the build you removed all secondary air stuff. Who took care of flashing the DME to ROW. I am interested in removing the secondary air system and o2 crap.
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tholyoak (forum member) did the flash. the RoW program eliminates the secondary air stuff and also eliminates the second set of O2 sensors. it also disables the clutch start safety switch so you can start the car without pressing in the clutch.
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01-31-2011, 07:38 PM
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#11
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Registered User
Join Date: Jan 2007
Location: Depends on the day of the week....
Posts: 1,400
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Fun isn't it  I've had my 3.8 Boxster neck to neck with a 997 GT3 and it was just about a perfectly even match. Unfortunately, even with B&B headers and FabSpeed exhaust the GT3 still sounds intoxicating comparatively....
We had two 60 degree days here the other day and I had the Boxster out, during one of the days I pulled into a BP station to get fuel and noticed that there was a 987 Boxster there as well. As I get out of the car, the guy says to me "that's not exactly stock, is it" with a smile, and I said "no, not exactly." We chatted for a bit and he asked if I'd give him a quick ride, so he parked his car and hopped in and we ran around for a few miles. By the end, I almost had to pick his jaw up off the floor LOL. As I was dropping him off, he just smiled and said "wanna trade?" Needless to say, I politely declined
__________________
Boxster S
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