EightSecV6
MDBL
- Joined
- Jul 18, 2001
he's running "big boost" because this is a low compression, hydraulic roller street engine that was only supposed to run 10.50's in that 3600# SLED.....right Mike?:biggrin: Wait until he wants to go fast LOL!
Congrats! Running this fast with a stock block isn't going to happen on 23psi like some people lead you to believe. I'm glad to see someone isn't afraid to post their real boost numbers!
I can GUARANTEE the reports of 23 and 24 psi are accurate. It's all in the combo.
he's running "big boost" because this is a low compression, hydraulic roller street engine that was only supposed to run 10.50's in that 3600# SLED.....right Mike?:biggrin: Wait until he wants to go fast LOL!
Whats the difference in compression between a low compression 109 that has to run 33psi of boost to run 9.70's and one that runs 23psi and runs the same number at the same weight? I can't believe going from a 8.0 to a 9.5 compression ratio makes a 10psi difference.
Good numbers. Thats funny. What are your current numbers considered?right on Billy.. i can't wait for a re-freash on the motor, THEN we will see some good numbers come out of this car :biggrin:
Good numbers. Thats funny. What are your current numbers considered?
Try 10.0:1 or more and solid cammed. I $hit you not. The fastest TSM engines are up over 10.0:1. They have to being limited by the 3 bolt, and stock intake. They cant get much more air in the cylinder so there is a lot of timing and squeeze. I doubt going up 1.5 in compression ratio would have those effects but the engines are built to have the highest tolerable brake mean effective pressures at the boost stated which would be at 23-24psi. Raising the engine speed via solid valvetrain will yield better effects than more boost since they are running such high bmep's. Revving will allow more airflow. I cant imagine where the 109's could be if they allowed larger than 70mm tangential 4 bolts and anything other than a stock intake on the solid cammed screamers. They would be damn close to TSO numbers though broken blocks would be the result.
Most will not believe but with the OEM computer, Poston headers, TT 18 degree street chip and a flaring 2nd to third 2004R trans (that's why the mph is down/ET) in a 3700 lb. AC street car on 275/60 MT drag radials with a 4 pd. foot brake launch at MIR in Maryland on 11/06 I went a 10.15 @131mph with 21 pounds of boost (1.46 60 ft.) If I came out at 5 pds. of boost I would blow the drag radials away. My engine is close to Nordy's hyd. cam build with 245 cubes and approx. 9.2 compression. Trans is now fixed and I went to the track once and now the mph is up around 133/134 with the same boost but that day at a different track rental on slicks I could not get a short time so no 9 sec. pass.
PS: My goal is to run in the 9's on unleaded/alky in a daily driven street car at 20 psi. using an oem block
MIR pic below!!!
Ahh, I see now. Those people that runs 9's with 23psi have a race only engine that never sees 93 octane or regular street duty?? No wonder my car sucks...it's a street car. Here I am thinking it was my tune all this time. I'm having to run high boost numbers to make up for lack of compression. Guess I'll be pulling the engine out and getting more pistons or just run 30 to 35psi all the time.
And you are correct TSM is not a "street" class. Most of them are very hardcore race cars with tons of $ spent . It should be noted that the TSM guys could dial their cars in at 20 psi with a smaller turboand alky and still run low 10's all day long.
sorry, no NOS on this GN... all motor and turbo powered.damn i wonder where he mounted the nitrous nozzles at ?
sorry, no NOS on this GN... all motor and turbo powered.