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05-09-2009, 01:00 PM
#26
Former Vendor of MBWorld
Thread Starter
lol, oh theres definitely a contest for sure to see whose is longest. Although its quite foolish b/c peak high end HP does very little in straight line accel. For the street you want power throughout the low end - mid range to get the car moving as quickly as possible. With that said our pulleys make power at high rpms as well it just depends on the motor, some engines respond differently pulleys and make full power at all rpms, some tend to make it more in the mid range.
With that said, the gains won't be that much on an M271 pulley that's why we haven't really pushed it aggressively. The only real way to make power a lot of power with the M271 pulley is with an overboost pulley and that goes against our performance philosophy so we leave that for other tuners to do (and there are a few options out there currently). Just being honest.
~AMS~
05-09-2009, 02:42 PM
#27
does a crankshaft pulley have any benfits for a supercharger if they are both on the same belt?
an upgraded crakshaft pulley is bigger than the stock
an upgraded SC pulley is smaller than the stock
if they are on the same belt, wouldnt the effects negate each other???
im no mechanic or engineer...so dont bash me guys
just an open discussion : )
an upgraded crakshaft pulley is bigger than the stock
an upgraded SC pulley is smaller than the stock
if they are on the same belt, wouldnt the effects negate each other???
im no mechanic or engineer...so dont bash me guys
just an open discussion : )
Smaller SC pulley == faster SC spin
Larger CS + smaller SC pulleys == really fast SC spin!
The Eaton MP45 SC maxes out at 15psi before its inefficient. On a stock M271 the SC is at 11 psi max, with the Renntech pulley its at 15 psi max.
Any questions just ask, yet start another thread or PM since we don't want to ruin AMS's thread.
05-09-2009, 02:44 PM
#28
lol, oh theres definitely a contest for sure to see whose is longest. Although its quite foolish b/c peak high end HP does very little in straight line accel. For the street you want power throughout the low end - mid range to get the car moving as quickly as possible. With that said our pulleys make power at high rpms as well it just depends on the motor, some engines respond differently pulleys and make full power at all rpms, some tend to make it more in the mid range.
With that said, the gains won't be that much on an M271 pulley that's why we haven't really pushed it aggressively. The only real way to make power a lot of power with the M271 pulley is with an overboost pulley and that goes against our performance philosophy so we leave that for other tuners to do (and there are a few options out there currently). Just being honest.
~AMS~
With that said, the gains won't be that much on an M271 pulley that's why we haven't really pushed it aggressively. The only real way to make power a lot of power with the M271 pulley is with an overboost pulley and that goes against our performance philosophy so we leave that for other tuners to do (and there are a few options out there currently). Just being honest.
~AMS~
I had it installed on my car and can say it made driving the manual LOTS more fun. The extra low-end torque was helpful, since the ECU limits launches to 4K, you need all the low end grunt you can get to launch this car.
05-09-2009, 03:45 PM
#29
Former Vendor of MBWorld
Thread Starter
The gains are actually a lot on the M271 under 4K rpms, someone a LONG time ago posted a dyno on csportcoupe.com that showed >20 hp/tq gains at the low/mid end (without a tune!)
I had it installed on my car and can say it made driving the manual LOTS more fun. The extra low-end torque was helpful, since the ECU limits launches to 4K, you need all the low end grunt you can get to launch this car.
I had it installed on my car and can say it made driving the manual LOTS more fun. The extra low-end torque was helpful, since the ECU limits launches to 4K, you need all the low end grunt you can get to launch this car.
05-11-2009, 10:04 PM
#31
Former Vendor of MBWorld
Thread Starter
. Lots of changes coming very soon so its been quite hectic on our end, all will be sorted out shortly. Thanks though for your input.
Last edited by AMS Performance; 05-11-2009 at 10:11 PM.
