Tanabe Medalion Touring Exhaust Installed
05-03-06, 01:49 PM
#33
Lexus Champion
Anyone else think the dyno looks funny?
~306 at the crank and 245 at the wheels equals a ~20% drivetrain inefficiency.
~277 lb/ft at the crank and 200 at the wheels equals a ~28% drivetrain inefficiency.
Usually, drivetrain inefficiency is roughly about the same for both figures.
I'm not questioning the gains, as the error (if there is one) would be the same for both before and after dynos.
~306 at the crank and 245 at the wheels equals a ~20% drivetrain inefficiency.
~277 lb/ft at the crank and 200 at the wheels equals a ~28% drivetrain inefficiency.
Usually, drivetrain inefficiency is roughly about the same for both figures.
I'm not questioning the gains, as the error (if there is one) would be the same for both before and after dynos.
05-04-06, 08:58 AM
#35
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I would recommend going through the forum vendors like Carson Toyota or TM Engineering
I just noticed I output the graph data with vehicle speed instead of RPM... let me re upload the file
I just noticed I output the graph data with vehicle speed instead of RPM... let me re upload the file
05-04-06, 12:15 PM
#36
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7hp more or less???? Why does it seam so in expensive for an exhaust Wait let me shut my mouth lol just wondering i remember getting my exhaust for my tl was 1100 i dunno 5.. whatever it is sounds good i guess lol
05-04-06, 12:19 PM
#37
Originally Posted by BaLLzZz
7hp more or less???? Why does it seam so in expensive for an exhaust Wait let me shut my mouth lol just wondering i remember getting my exhaust for my tl was 1100 i dunno 5.. whatever it is sounds good i guess lol
05-04-06, 12:36 PM
#38
Lexus Champion
Originally Posted by BaLLzZz
7hp more or less???? Why does it seam so in expensive for an exhaust Wait let me shut my mouth lol just wondering i remember getting my exhaust for my tl was 1100 i dunno 5.. whatever it is sounds good i guess lol
1. weight. How much lighter is it compared to stock?
2. exhaust tone and db's
3. tips/bling
4. hp gain
If the first 3 are acceptable, any gain is just iceing for an axle-back IMHO. However, if it dynos with any loss, then I wouldn't consider it at all unless the weight loss more than compensates for the hp loss.
05-04-06, 03:41 PM
#39
Another video I found. Not sure who made this video. It might be yoshi's car.
No gunning of the car, Just normal acceleration.
http://www.youtube.com/watch?v=CU9yj...=lexus%20is350
No gunning of the car, Just normal acceleration.
http://www.youtube.com/watch?v=CU9yj...=lexus%20is350
Last edited by pocky; 05-04-06 at 03:53 PM.
05-04-06, 05:09 PM
#41
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Weighed the stock exhaust again. Stock exhaust rear section weighs exactly 40lbs(!)
I weighed a box, put the exhaust in the box, and then reweighed and subtracted the difference (for those who are wondering how to weigh a big item like that)
The Medalion Touring isnt quite an axle back, nor is it a catback. The piping starts before the rear axle
Ballzzz > There is a lot that goes into the price of an exhaust. While there are similar items from other companies, they will wildly differ in specifications and quality, just like cars.
I weighed a box, put the exhaust in the box, and then reweighed and subtracted the difference (for those who are wondering how to weigh a big item like that)
The Medalion Touring isnt quite an axle back, nor is it a catback. The piping starts before the rear axle
Ballzzz > There is a lot that goes into the price of an exhaust. While there are similar items from other companies, they will wildly differ in specifications and quality, just like cars.
