Did the swap. Went to the 2.81 pulley. They removed the snout and used a press to remove and install the pullies. Changed the blower oil too. Also installed the smaller belt.
They apparently had to cut a metal/aluminum pieced that a hose goes on so the snout can be removed without having to pull the blower. no big deal. The hose still goes on 1 inch past the cut. I think it was a intercooler supply (water) thing.
Not impressed by the dyno results:
BEFORE PULLEY (CB, K&N, DIABLO): 413.7 SAE and About 397 ft/lbs
AFTER PULLEY: (SAE) 440 RWHP and 460 RWTQ in 94 F intake temps.
I gained about 26 HP and about 65 ft/lbs or so. Not bad but was expecting more.
FIRST IMPRESSIONS:
- WOW! Lots of torque available ALL OVER THE PLACE!
Needle PEGS 10psi VERY easily. Prolly pulls 13 psi.
Blower is LOUDER!
Breaks VERY loose in 1st gear now. Like too easily. Gotta RE-LEARN to drive it.
SOTP tells me the gains where VERY VERY nice! It pulls just that much harder.
REVS very very quickly to 6,000 RMPs.
Feels like a 3 second car 0-60.
Feels like an 11 second car in the 1/4.
Its very tame though. Not outrageous, just more power when you get into it.
BOOST comes on REAL fast now.
Feels like the car lost 700 lbs of weight.
Not bad for $500 installed with parts.
-------------------------
NOTICED BLACK SMOKE AROUND 6000 RMPS ON THE DYNO!!!
Air fuel is PERFECT at 12:1
I think I am blowing out the spark plugs or the blower is being restricted by the intake.
Misfire up high?
PEAK HP comes on MUCH earlier now. Like 5500 RPMs instead of 6400 RPMS before.
All in all I am happy. Cant even tell by looking at the engine!
:rolling:
They apparently had to cut a metal/aluminum pieced that a hose goes on so the snout can be removed without having to pull the blower. no big deal. The hose still goes on 1 inch past the cut. I think it was a intercooler supply (water) thing.
Not impressed by the dyno results:
BEFORE PULLEY (CB, K&N, DIABLO): 413.7 SAE and About 397 ft/lbs
AFTER PULLEY: (SAE) 440 RWHP and 460 RWTQ in 94 F intake temps.
I gained about 26 HP and about 65 ft/lbs or so. Not bad but was expecting more.
FIRST IMPRESSIONS:
- WOW! Lots of torque available ALL OVER THE PLACE!
Needle PEGS 10psi VERY easily. Prolly pulls 13 psi.
Blower is LOUDER!
Breaks VERY loose in 1st gear now. Like too easily. Gotta RE-LEARN to drive it.
SOTP tells me the gains where VERY VERY nice! It pulls just that much harder.
REVS very very quickly to 6,000 RMPs.
Feels like a 3 second car 0-60.
Feels like an 11 second car in the 1/4.
Its very tame though. Not outrageous, just more power when you get into it.
BOOST comes on REAL fast now.
Feels like the car lost 700 lbs of weight.
Not bad for $500 installed with parts.
-------------------------
NOTICED BLACK SMOKE AROUND 6000 RMPS ON THE DYNO!!!
Air fuel is PERFECT at 12:1
I think I am blowing out the spark plugs or the blower is being restricted by the intake.
Misfire up high?
PEAK HP comes on MUCH earlier now. Like 5500 RPMs instead of 6400 RPMS before.
All in all I am happy. Cant even tell by looking at the engine!
:rolling: