New AMS Engine 23RR Engine = Big Power!
Jan 25, 2007, 04:56 PM
#76
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Again, pricing will be higher than the standard 2.3 100mm strokers so I don't know if it will replace it. And for the same compression, the 100mm stroker will give you a tiny bit more torque down low, while the 23RR will give you more rev's and power up top.
A few more things I've found recently. Running at higher compression and the cam timing that we've played with, this thing has no problem running 20-22psi of boost on pump gas. Being the dwell at TDC & BDC changes, cam timing needs to be optimized. The motors will include instruction & recommendation for tuning & dialing it in. I'm getting closer on the pricing structure as we speak.
A few more things I've found recently. Running at higher compression and the cam timing that we've played with, this thing has no problem running 20-22psi of boost on pump gas. Being the dwell at TDC & BDC changes, cam timing needs to be optimized. The motors will include instruction & recommendation for tuning & dialing it in. I'm getting closer on the pricing structure as we speak.
Jan 27, 2007, 08:40 PM
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Is there any chance that this engine could be ordered with a lower than 9.25:1 compression ratio? Somewhere around 8.8:1, so as to run a bit more boost on crappy 91 octane gas? Is the 9.25:1 compression piston a flat-top?
Jan 30, 2007, 09:04 AM
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I did a test with our VSR intake manifold.
I ran the car pretty safe for some baselines. roughly 20psi running it rich and safe.
Then we swapped the intake manifold and here are the results on this motor. The fueling requirements went way up and it ran out of injectors. The 780's are at 100% DC at 7500RPM. I had to add a lot of fuel up top which reflects the improved flow of the VSR. The car lost very little power down low and spool up was virtually unaffected. This is all on 20psi, 93 octane with the 23RR.
Notice the peak power went up over 35WHP and at higher RPM's it's making over 60whp more than the stock manifold!
I ran the car pretty safe for some baselines. roughly 20psi running it rich and safe.
Then we swapped the intake manifold and here are the results on this motor. The fueling requirements went way up and it ran out of injectors. The 780's are at 100% DC at 7500RPM. I had to add a lot of fuel up top which reflects the improved flow of the VSR. The car lost very little power down low and spool up was virtually unaffected. This is all on 20psi, 93 octane with the 23RR.
Notice the peak power went up over 35WHP and at higher RPM's it's making over 60whp more than the stock manifold!
Last edited by AMS; Jan 30, 2007 at 09:06 AM.
Feb 4, 2007, 10:21 PM
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Time to put some 880cc injectors on that bad boy and see how much power you can really make. That torque curve looks ridiculous. I can't even begin to imagine how much trouble I would get into with the 2.3RR, hehe ... 
l8r)
l8r)
