Forced Induction Supercharger/Turbocharger

thoughts on my twin turbo motor

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Old Nov 17, 2006 | 11:20 AM
  #1  
bmwmcars's Avatar
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thoughts on my twin turbo motor

just thought i would toss out to the group the build i have in progress.

Block: Dart lil' M
Main caps: splayed steel
Cap Fasteners: arp studs for center, bolts for outer
Bore: 4.125
Crank: Callies 4340 knife edged 3.48" stroke
Rods: BME 6"
Pistons: Custom Diamond, tooled steel pins
Cam: custom turbo grind... 26x/26x .600/.600 lift with 1.5:1 RR
Heads: Dart Pro 1 230cc/72cc chamber, mild port 2.08,1.62 valves
Intake: Single plane, ported and port matched to heads
TB: Wilson 90mm with GM electronics on a sheet metal elbow
Injectors: 96lbs/hr
EFI: DFI Gen VII with Closed Loop WB02, full sequential
Distributor: Accel V8 Dual Hall-effect (Cam/Crank)
Exhaust Headers: custom 321 stainless twin turbo headers
Turbos: Twin PT-67 P Trims
Wastegates: Twin TiAL 38mm wastegates
N2O: 200 wet shot
Old Nov 17, 2006 | 01:58 PM
  #2  
Kredz28's Avatar
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Posts: 599
From: Colorado Springs, CO
Originally Posted by bmwmcars
just thought i would toss out to the group the build i have in progress.

Block: Dart lil' M
Main caps: splayed steel
Cap Fasteners: arp studs for center, bolts for outer
Bore: 4.125
Crank: Callies 4340 knife edged 3.48" stroke
Rods: BME 6"
Pistons: Custom Diamond, tooled steel pins
Cam: custom turbo grind... 26x/26x .600/.600 lift with 1.5:1 RR
Heads: Dart Pro 1 230cc/72cc chamber, mild port 2.08,1.62 valves
Intake: Single plane, ported and port matched to heads
TB: Wilson 90mm with GM electronics on a sheet metal elbow
Injectors: 96lbs/hr
EFI: DFI Gen VII with Closed Loop WB02, full sequential
Distributor: Accel V8 Dual Hall-effect (Cam/Crank)
Exhaust Headers: custom 321 stainless twin turbo headers
Turbos: Twin PT-67 P Trims
Wastegates: Twin TiAL 38mm wastegates
N2O: 200 wet shot
Old Nov 17, 2006 | 02:07 PM
  #3  
RealQuick's Avatar
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Posts: 5,645
From: Bridgewater, MA
Originally Posted by Kredz28
is right!
Old Nov 17, 2006 | 04:13 PM
  #4  
TransAm396's Avatar
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Posts: 2,125
From: Connecticut
sounds very street friendly...lol
Old Nov 17, 2006 | 04:31 PM
  #5  
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Posts: 1,374
From: Raleigh, NC
Caution: This car eats babies!

Bumper sticker for ya


edit: what kind of car are you putting this in?
Old Nov 18, 2006 | 07:40 PM
  #6  
bmwmcars's Avatar
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just a little awd s10. shooting for mid 8s on 315/17 street tires. 4link w/ coil overs in the back, coil overs up front. chassis is certified for 8.50.

and i do plan on driving it quite a bit on the street. should be fun
Old Nov 19, 2006 | 03:12 PM
  #7  
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Posts: 884
From: I reached back like a pimp and smacked that LS1....
Looks good, but personally I would run a cam with about 25 degrees less duration @.050 if it's going to be driven on the street.

(You won't need that much cam or the nitrous to meet your goals).
Old Nov 19, 2006 | 08:32 PM
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Posts: 164
From: Tulsa, OK
What awd are you going to use? I know lingenfelter had a 427TT sonoma with awd out of a suv and it wouldnt hold it. Post up some pics.
Old Nov 20, 2006 | 10:10 AM
  #9  
bmwmcars's Avatar
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Originally Posted by SBCGENII
What awd are you going to use? I know lingenfelter had a 427TT sonoma with awd out of a suv and it wouldnt hold it. Post up some pics.
havent decided. probably a 4472. lpe had a problem with the trans more so than the awd, as i recall. a fully built 4l80e should solve that problem tho.

i will post up some pics once i get things cleaned up and in order a bit.
Old Nov 22, 2006 | 09:45 AM
  #10  
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From: Jacksonville
The problem LPE had was all the fluid would rush to the back of the transmission under hard acceleration and would cause the pump to run dry.
Old Nov 22, 2006 | 11:30 AM
  #11  
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From: Raleigh, NC
Originally Posted by 97WS6SCharged
The problem LPE had was all the fluid would rush to the back of the transmission under hard acceleration and would cause the pump to run dry.
Can you relocate the pickup to the rear of the transmission?

Keep in mind that I know absolutely nothing about auto trannys, my solution would be (as always) use a manual
Old Nov 22, 2006 | 12:11 PM
  #12  
97WS6SCharged's Avatar
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I believe they ended up using a scavenging pump to fix the problem.
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