Success! Tanabe Medalion Touring for IS250 RWD
07-17-06, 01:39 PM
#1
Former Vendor
Thread Starter
Success! Tanabe Medalion Touring for IS250 RWD
Very good news!
We have wrapped up R&D of the Medalion Touring exhaust for the IS250. Here are some pictures of the final product:
We have confirmed that fitment between the Medalion Touring for the IS350 and the IS250 RWD is the same. Even better news is that the function is also up to par! After taking the IS250 for independent dyno testing by R&D Dyno Services in Gardena, we confirmed a max hp gain of ~4.7rwhp, with very high torque gains on the lower RPM range, and several ft/lbs of torque gained on the upper end.
Dyno testing was performed with VDIM turned off, ambient temperature 89F ~35% humidity for all runs (all baseline and w/exhaust dyno testing performed within same hour). Baseline and Max power results determined from highest average runs from each.
We will post dyno sheets and run files once we receive them from R&D dyno.
The part number is T70113A, same as IS350. Available through CL's authorized vendors.
Sound clips will be available shortly.
IS250 AWD testing will commence once we find a suitable So. Cal vehicle.
If you have an IS250 AWD and would like to help us, please see this thread:
https://www.clublexus.com/forums/sho...d.php?t=227693
We have wrapped up R&D of the Medalion Touring exhaust for the IS250. Here are some pictures of the final product:
We have confirmed that fitment between the Medalion Touring for the IS350 and the IS250 RWD is the same. Even better news is that the function is also up to par! After taking the IS250 for independent dyno testing by R&D Dyno Services in Gardena, we confirmed a max hp gain of ~4.7rwhp, with very high torque gains on the lower RPM range, and several ft/lbs of torque gained on the upper end.
Dyno testing was performed with VDIM turned off, ambient temperature 89F ~35% humidity for all runs (all baseline and w/exhaust dyno testing performed within same hour). Baseline and Max power results determined from highest average runs from each.
We will post dyno sheets and run files once we receive them from R&D dyno.
The part number is T70113A, same as IS350. Available through CL's authorized vendors.
Sound clips will be available shortly.
IS250 AWD testing will commence once we find a suitable So. Cal vehicle.
If you have an IS250 AWD and would like to help us, please see this thread:
https://www.clublexus.com/forums/sho...d.php?t=227693
07-17-06, 01:57 PM
#4
Former Vendor
Thread Starter
The sound is actually very nice when put side to side with the 350.
Of course, our sound recording equipment (digital camera) is not the best, but it does have a very rich, deep sound when heard in person. Unfortunately, our digital camera cannot pick up low frequency sounds at all.
We were most surprised with the horsepower and torque gains, considering the much smaller engine displacement, and the fact that it is a rear section on a modern vehicle.
Of course, our sound recording equipment (digital camera) is not the best, but it does have a very rich, deep sound when heard in person. Unfortunately, our digital camera cannot pick up low frequency sounds at all.
We were most surprised with the horsepower and torque gains, considering the much smaller engine displacement, and the fact that it is a rear section on a modern vehicle.
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07-17-06, 02:26 PM
#8
Lead Lap
Join Date: Jul 2003
Location: Torrance, California
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Considering the 250 stock dynos around 176rwhp, a 4.7whp increase comes out to an almost 3% increase in efficiency, which is very nice-- not including low end torque gained 
The dyno will tell all.... mind you, it was tested in nearly 90 degree humid california weather. Should actually dyno even better on a cool day.
The dyno will tell all.... mind you, it was tested in nearly 90 degree humid california weather. Should actually dyno even better on a cool day.
