Full exhaust, how much HP?
07-18-2005, 05:14 PM
#77
Contributing Member
Join Date: Oct 2004
Location: Woodbridge
Posts: 886
1) Who's Dyno sheet
2) What other mods on on the car?
3) That sheet is inconclusive, considering all you've said that was it's a 3" exhaust. No indication on the car, or anything.
It proves nothing even if you "see gains". We know nothing else of the car, or what has been done.
2) What other mods on on the car?
3) That sheet is inconclusive, considering all you've said that was it's a 3" exhaust. No indication on the car, or anything.
It proves nothing even if you "see gains". We know nothing else of the car, or what has been done.
Last edited by Initial Daniel; 07-18-2005 at 05:22 PM.
07-18-2005, 05:37 PM
#79
Contributing Member
Join Date: Sep 2002
Location: Massachusetts
Posts: 680
From the name on the chart, I'm betting that dyno sheet is Alex Chang's - and he works for 5Zigen if I remember correctly.
But he has always been thorough with his dyno tests and I will bet that dyno is stock compared to the 3" with all else equal.
Anyone know how to get in touch with Alex? Is he still on these forums?
-Justin
But he has always been thorough with his dyno tests and I will bet that dyno is stock compared to the 3" with all else equal.
Anyone know how to get in touch with Alex? Is he still on these forums?
-Justin
07-18-2005, 05:45 PM
#80
Contributing Member
Join Date: Jan 2004
Location: Waterford, Ca
Posts: 2,863
Im not trying to start fights with you bigv...or initial daniel...You know that...Just what I found on freshalloy. Its farely old, about one year. The car is an s14 with 190xxx miles and an aem intake...Here
07-18-2005, 06:04 PM
#81
Contributing Member
Join Date: Sep 2002
Location: Massachusetts
Posts: 680
I consider Alex a reliable source... and would have accepted his results even if they showed the predicted power loss. I am still curious to see what a 2.5" system would do in comparison to the 3" system.
-Justin
-Justin
07-18-2005, 06:06 PM
#82
Contributing Member
Join Date: Jan 2004
Location: Waterford, Ca
Posts: 2,863
Yeah...There are a few more dynos out there that I have seen you just have to look for them. Thats just the first I found. Convinced me that 3 inch might work well...Im still going 2.5 though to keep the noise down 
07-18-2005, 07:21 PM
#83
Here are my comments.
First he used a silencer and shoved it up the pipe, usually that is half the diameter of the muffler outlet itself.
Secondly I recomended to slidin 240 that it is fine to use with the stock header which he has also.
The one thing I want to comment on is the weak torque curve, it drops significantly in the higher RPM range and it doesn't look very smooth at all.
He also used an intake system to get those numbers.
What type of intake did he use?
Cold air? I think thats what he meant with the CAS?
He also ran it with the engine cold. When the engine was hot those numbers dropped, he wont get those type of gains on the street.
First he used a silencer and shoved it up the pipe, usually that is half the diameter of the muffler outlet itself.
Secondly I recomended to slidin 240 that it is fine to use with the stock header which he has also.
The one thing I want to comment on is the weak torque curve, it drops significantly in the higher RPM range and it doesn't look very smooth at all.
He also used an intake system to get those numbers.
What type of intake did he use?
Cold air? I think thats what he meant with the CAS?
He also ran it with the engine cold. When the engine was hot those numbers dropped, he wont get those type of gains on the street.
Last edited by BigVinnie; 07-18-2005 at 07:32 PM.
07-18-2005, 07:56 PM
#87
Originally posted by Fast1One
Short? Thats all AEM makes dont they?
*For our application
Short? Thats all AEM makes dont they?
*For our application
07-18-2005, 08:10 PM
#90
Originally posted by Initial Daniel
If you've got your car tuned, the gains are going to be insignificant either way...with a properly sized exhaust, you and I both know that he could be making more power out of that system.
If you've got your car tuned, the gains are going to be insignificant either way...with a properly sized exhaust, you and I both know that he could be making more power out of that system.
My beef is that he also ran the engine cold, so was it also in open or closed loop? When the engine ran hot it dropped significantly.