Rick@GMHTP
New Member
- Joined
- Sep 17, 2003
- Messages
- 35
The GMHTP test took two months of planning and some serious thrashing to get done, so let me clear a few things up:
First off, I'll give you the large fan comment. We don't have access to the "intercooler fans" used for more accurate dyno testing of coolers. If we did (and not too many do), I would have used one. But the circular fan was used consistently with both the stock and the Mease intercoolers.
The GMHTP stock versus Mease intercooler test was not only on the dyno, we performed drag testing as well. The stock cooler was tested in great conditions, -725 density altitude, and it just so happened that the Mease was tested in worse conditions, with a 2400+ DA. That's how the ball bounces and Keith understands that I wanted to swap coolers on the dyno with the wide-band on to see where my A/F ratio was, not at the track where I (currently) don't have the wide-band or EGT to make sure the head gaskets don't exit stage left. If Keith wants to have a track day with a few witnesses present to do a same-day stock/front-mount/Mease track test, we would set aside a paragraph or two to publish the results as long as everything was consistent.
Nothing during the dyno testing was "suspect":
The one glitch (and believe me, with a high-boost test including welding on four bungs for pressure/temp in/out, there can be a lot of glitches!) was not being able to get the shroud on and tested on the same day. However, the car was prepared exactly the same way for every single dyno pull: boost at 24, high-gear timing at 25, pump gas drained, same amount of C16 put in, dump open, and scan tools up and running. The SLP crew runs a SuperFlow dyno, and the same load and correction factors were used from test to test.
I stated that the pre-Mease power of 361 horses and 434 lb-ft at the wheels were where I had left off after the TE44 and 50-lb. injectors--when the car was set up the exact same way as listed above, save for a slight increase in boost creep between the two.
If anyone has any other questions about this test, contact me at rick.jensen@primedia.com
First off, I'll give you the large fan comment. We don't have access to the "intercooler fans" used for more accurate dyno testing of coolers. If we did (and not too many do), I would have used one. But the circular fan was used consistently with both the stock and the Mease intercoolers.
The GMHTP stock versus Mease intercooler test was not only on the dyno, we performed drag testing as well. The stock cooler was tested in great conditions, -725 density altitude, and it just so happened that the Mease was tested in worse conditions, with a 2400+ DA. That's how the ball bounces and Keith understands that I wanted to swap coolers on the dyno with the wide-band on to see where my A/F ratio was, not at the track where I (currently) don't have the wide-band or EGT to make sure the head gaskets don't exit stage left. If Keith wants to have a track day with a few witnesses present to do a same-day stock/front-mount/Mease track test, we would set aside a paragraph or two to publish the results as long as everything was consistent.
Nothing during the dyno testing was "suspect":
The one glitch (and believe me, with a high-boost test including welding on four bungs for pressure/temp in/out, there can be a lot of glitches!) was not being able to get the shroud on and tested on the same day. However, the car was prepared exactly the same way for every single dyno pull: boost at 24, high-gear timing at 25, pump gas drained, same amount of C16 put in, dump open, and scan tools up and running. The SLP crew runs a SuperFlow dyno, and the same load and correction factors were used from test to test.
I stated that the pre-Mease power of 361 horses and 434 lb-ft at the wheels were where I had left off after the TE44 and 50-lb. injectors--when the car was set up the exact same way as listed above, save for a slight increase in boost creep between the two.
If anyone has any other questions about this test, contact me at rick.jensen@primedia.com
