Almost time for boost
03-10-2006, 03:44 PM
#25
Senior Member
Join Date: Oct 2001
Location: Peoria, AZ
Posts: 10,906
Ignore the #10 run( the low torque run); I tried to have the dyno operator do a comparison versus the old SSA manifold and his old O turbine wheel and .81 turbine A/R versus my manifold and the new P trim turbine wheel and 1.32 turbine A/R, but for some reason a dyno showed up that I have no idea what its from.
Here are his relevant mods:
Rtek 1.7 ECU: new 550 primaries, new 720cc secondiares walbro 255lph hp and new 5/16 hardline from tank
HKS AIC 2 x 380cc
3.5" downpipe/midpipe to a modified Apex N1 catback
Cold air intake
No ac/ps/clutch fan
Water / Alcohol injection( intake temps start @ 22c and rise to 33C for this run)
Garrett B25 compressor section( 52 to4E basically I believe), P trim turbine wheel, 1.32 divided tang housing
Intake ports open slighly sooner than stock, exhaust is port matched to sleeve
Compression is low ( 60psi even both rotors, all faces)
* worn out drivetrain components are also have been taking a severe beating, making a lot of noise, probably hurting drivetrain losses.
This is an electric chassis dyno. I was told by the owner they have noticed results 10-15% lower than their neighbor shop with a Mustang Dyno, now whether thats true or not I have not confirmed.
Also after 6k rpms when the torque is dropping off pretty hard, we believe the car is being limited badly by the rtek 1.7 ecu's ignition advance, and probably the afm too.
Here are his relevant mods:
Rtek 1.7 ECU: new 550 primaries, new 720cc secondiares walbro 255lph hp and new 5/16 hardline from tank
HKS AIC 2 x 380cc
3.5" downpipe/midpipe to a modified Apex N1 catback
Cold air intake
No ac/ps/clutch fan
Water / Alcohol injection( intake temps start @ 22c and rise to 33C for this run)
Garrett B25 compressor section( 52 to4E basically I believe), P trim turbine wheel, 1.32 divided tang housing
Intake ports open slighly sooner than stock, exhaust is port matched to sleeve
Compression is low ( 60psi even both rotors, all faces)
* worn out drivetrain components are also have been taking a severe beating, making a lot of noise, probably hurting drivetrain losses.
This is an electric chassis dyno. I was told by the owner they have noticed results 10-15% lower than their neighbor shop with a Mustang Dyno, now whether thats true or not I have not confirmed.
Also after 6k rpms when the torque is dropping off pretty hard, we believe the car is being limited badly by the rtek 1.7 ecu's ignition advance, and probably the afm too.
03-10-2006, 03:53 PM
#26
Senior Member
Join Date: Oct 2001
Location: Peoria, AZ
Posts: 10,906
Here are a couple of his previous dynos:
The lower torque dyno was:
SSA manifold, downpipe( 3" or 3 1/8") and midpipe to apex n1
B25 with O trim turbine wheel and .81 turbine a/r tang
Rtek 1.7( 550, 720), and a walbro 255 lph hp
afr's were in the 12s
The second run with the midrang torque jump was after
I made a water alcohol injection setup at the shop and street tuned his HKS AIC( 2 x 380cc )
Also fixed his cracked SSA manifold
The lower torque dyno was:
SSA manifold, downpipe( 3" or 3 1/8") and midpipe to apex n1
B25 with O trim turbine wheel and .81 turbine a/r tang
Rtek 1.7( 550, 720), and a walbro 255 lph hp
afr's were in the 12s
The second run with the midrang torque jump was after
I made a water alcohol injection setup at the shop and street tuned his HKS AIC( 2 x 380cc )
Also fixed his cracked SSA manifold
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