View Full Version : red hot Alpina engine
shogun
01-14-2005, 01:03 PM
I like that pic. I think it's a B10 Bi-Turbo (pls correct me if I am wrong)
http://thee32register.co.uk/attach/90247/redhotAlpina.jpg
rot535i
01-14-2005, 02:01 PM
I like that pic. I think it's a B10 Bi-Turbo (pls correct me if I am wrong)
http://thee32register.co.uk/attach/90247/redhotAlpina.jpg
What does it take to get that hot? HP?
Mr Project
01-14-2005, 02:47 PM
Gee, I wonder why they recommend oil coolers on turbo M30s? :)
Derek A.
01-14-2005, 02:50 PM
lean mixture - raises exhaust temperatures.
DueyT
01-14-2005, 04:28 PM
What kind of power is that M30 pumping out?
bahnstormer
01-14-2005, 04:54 PM
according to Pat P who has a m30 bi turbo from alpina
only about 325hp
Year / Model 1992 Alpina B10 Biturbo #384 of 507
Engine twin turbo SOHC M30 inline 6
Power level 325RWHP/388RWTRQ @ 10psi
http://boostjunky.com/pat.html
willobmw
01-14-2005, 04:55 PM
360 bhp @ 6000 rpm and 384 lbs. ft @ 4000 rpm if it is the Bi-Turbo motor. And to think these guys started out making typewriters. Great picture.
Will Ollison
willobmw
01-14-2005, 05:09 PM
Pat must have lost some horsepower when It was crossing the water. If his are Dyno figures,the torque rating is a little iffy. Maybe I'm wrong but from all the publications I've read and of all the cars I've seen advertised something just doesn't add up.
Will Ollison
bahnstormer
01-14-2005, 08:41 PM
those are wheel hp and torque i believe...
(not stupid at the crank measurements )
willobmw
01-14-2005, 09:41 PM
Back to my point. How can his at the wheel torque be 388 ft. lbs, when the manufacturer only rated it at 384? Hmmm. Maybe Alpina underated the power like the Ford and Chevy used to do.
bahnstormer
01-14-2005, 10:24 PM
he may have turned the boost up,
or
LIST OF MODIFICATIONS
forged pisions
forged rods
modded crank
ported head
large heat valves
large cam
2 t-25 turbos
4 piston caliper brakes
diff cooler
custom diff
custom tranny
custom clutch
fmic
electronic throttle
custom tuning
traction control
fuel cooler
custom injectors
tires: 265/40ZR17 rear, 245/40ZR17 fr
wheels: 17x9.5 rear...17x8.5 front
any of those things may have helped =]
Paul in NZ
01-14-2005, 10:54 PM
note that it is only the exhausts that are glowing,no wonder turbosthemselves have rather large oil volumes going through em.On a dyno running hard a NA car would maybe have the exhausts glowing too????
winfred
01-14-2005, 11:37 PM
after a interstate run the manifold where it necks down into the turbo would glow on my old 760 volvo, a harder romp would get it harder, i never thought to check it out during a autocross of which i did a few (understeering body rolling tire smoking pig :D )
willobmw
01-15-2005, 05:52 AM
Now I'm a believer.
Will Ollison
Mr Project
01-15-2005, 12:21 PM
after a interstate run the manifold where it necks down into the turbo would glow on my old 760 volvo, a harder romp would get it harder, i never thought to check it out during a autocross of which i did a few (understeering body rolling tire smoking pig :D )
Autocross probably wouldn't have been enough to make it glow. It takes some time with sustained heat to get enough of a build-up to make things glow. Pretty rare where you can have the throttle wide open for more than 4 or 5 seconds at an autocross. :)
bjl4776
01-15-2005, 01:56 PM
mine would glow that hot with me cruising at 120 on the interstate for an hour
632 Regal
01-15-2005, 02:19 PM
tractor pulls glow
Jon K
01-15-2005, 10:16 PM
I figured out why this motor glows so much...
its only got throttle on/off... see the toggle switch where teh AFM would inlet? hahaha
jk
winfred
01-15-2005, 10:40 PM
with the automatic i was on the throttle just about the whole way around to keep the boost up, lag is a bitch on a short track with a slushbox, our parking lot x's were under a minute for two laps and never out of 2nd, after i figured out getting off of the throttle was too slow i picked up several seconds by keeping the turbo spooled up and just powerbraking through the turns, so it wouldn't suprise me if it had a good glow going, i just let it idle between runs to keep from cooking the oil in the turbo
Autocross probably wouldn't have been enough to make it glow. It takes some time with sustained heat to get enough of a build-up to make things glow. Pretty rare where you can have the throttle wide open for more than 4 or 5 seconds at an autocross. :)
Mr Project
01-16-2005, 08:06 AM
Ahh, you're probably right then. :) Never tried autocrossing with anything that could be driven like that...sounds like it would have been fun, in an abusive kind of way. :D
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