ClubLexus - Lexus Forum Discussion

IS F (2008-2014) Discussion topics related to the IS F model

DD supercharged ISF good idea?

Thread Tools
 
Search this Thread
 
Old 02-17-19, 05:17 PM
  #16  
ISFpowered
Instructor
Thread Starter
 
ISFpowered's Avatar
 
Join Date: Mar 2018
Location: California
Posts: 992
Received 342 Likes on 216 Posts
Default
Originally Posted by Vitveet
No way can it?! That's a ton of weight...I'd guess 100 lbs....but just a guess, lol.
And pretty sure there is no one with the RR supercharger on there ISF that's put 50k miles on it. The kit has been out less than 2 years... even at 2 years, that's 25k miles a year average....bit of a stretch. RR's supercharged F probably has the most mileage and abuse on it.....but they have a mixture of parts, etc from what I understand since it's really a test mule for product development. So that car may not be an accurate judge.

V.
​
Agreed but they also don稚 DD the car. I agree 50k might be a stretch but at least like 20k miles. The ones that do have it I知 sure don稚 DD their car. Well the majority of them anyway.
ISFpowered is offline  
Reply Like
Old 02-17-19, 05:52 PM
  #17  
ljdsong
Intermediate
iTrader: (1)
 
ljdsong's Avatar
 
Join Date: Apr 2009
Location: CA BAYAREA
Posts: 437
Received 148 Likes on 72 Posts
Default
Originally Posted by ISFpowered


Nice! I live in SoCal so I知 wondering what it would be like since I wouldn稚 really have anything else except my GSXR to daily which I rather not. So do you daily it on pump 91 octane? Do you use any octane boosters? How痴 your gas mileage?
I daily drive it with 91 octane, at time i put e20 and you can feel the add on power. Guess weight of the ss kit coz i remember transfering it from my door step to garage , maybe 90lbs to 100lbs .
ljdsong is offline  
Reply Like
Old 02-17-19, 05:59 PM
  #18  
ISFpowered
Instructor
Thread Starter
 
ISFpowered's Avatar
 
Join Date: Mar 2018
Location: California
Posts: 992
Received 342 Likes on 216 Posts
Default
Originally Posted by ljdsong
I daily drive it with 91 octane, at time i put e20 and you can feel the add on power. Guess weight of the ss kit coz i remember transfering it from my door step to garage , maybe 90lbs to 100lbs .
Was your dyno done on 91?
ISFpowered is offline  
Reply Like
Old 02-17-19, 07:40 PM
  #19  
ljdsong
Intermediate
iTrader: (1)
 
ljdsong's Avatar
 
Join Date: Apr 2009
Location: CA BAYAREA
Posts: 437
Received 148 Likes on 72 Posts
Default
Originally Posted by ISFpowered


Was your dyno done on 91?
That dyno graph above is done with e30 mix but like what I said is not accurate coz the engine air filter is not cleaned since I install the ss kit plus the blower of the dyno shop is not enough.

leo
ljdsong is offline  
Reply Like
Old 02-17-19, 07:46 PM
  #20  
tas02
Lexus Test Driver
iTrader: (2)
 
tas02's Avatar
 
Join Date: Jul 2015
Location: WA
Posts: 1,063
Received 31 Likes on 29 Posts
Default
How does the supercharger sound when cruising at low throttle input?
tas02 is offline  
Reply Like
Old 02-17-19, 07:57 PM
  #21  
ISFpowered
Instructor
Thread Starter
 
ISFpowered's Avatar
 
Join Date: Mar 2018
Location: California
Posts: 992
Received 342 Likes on 216 Posts
Default
Originally Posted by ljdsong
That dyno graph above is done with e30 mix but like what I said is not accurate coz the engine air filter is not cleaned since I install the ss kit plus the blower of the dyno shop is not enough.

leo
Have you dynoed with it on just 91? I知 curious to see those numbers.
ISFpowered is offline  
Reply Like
Old 02-18-19, 12:07 AM
  #22  
njoyRice
Driver School Candidate
 
njoyRice's Avatar
 
Join Date: May 2016
Location: TX
Posts: 35
Received 9 Likes on 7 Posts
Default
Originally Posted by tas02
How does the supercharger sound when cruising at low throttle input?
Very Quiet. You don't hear any spooling noise like you do with a procharger or paxton. If you let off throttle at a very high RPM then you can hear the blow off noise.
njoyRice is offline  
Reply Like
The following users liked this post:
tas02 (02-18-19)
Old 02-18-19, 07:49 AM
  #23  
ljdsong
Intermediate
iTrader: (1)
 
ljdsong's Avatar
 
Join Date: Apr 2009
Location: CA BAYAREA
Posts: 437
Received 148 Likes on 72 Posts
Default
Originally Posted by tas02
How does the supercharger sound when cruising at low throttle input?
The sound is not aggressive for my taste, but enough to get attention specially in the stretch of the track. At the track people delighted about the sound. My set up is ppe/xforce and vibrant gesi hiflow cats
ljdsong is offline  
Reply Like
Old 02-18-19, 08:46 AM
  #24  
ISFpowered
Instructor
Thread Starter
 
ISFpowered's Avatar
 
Join Date: Mar 2018
Location: California
Posts: 992
Received 342 Likes on 216 Posts
Default
Originally Posted by ljdsong
The sound is not aggressive for my taste, but enough to get attention specially in the stretch of the track. At the track people delighted about the sound. My set up is ppe/xforce and vibrant gesi hiflow cats
What part of Cali do you live in? Just curious to hear and see it in person if you don稚 mind. Do you have any pictures of your car?
ISFpowered is offline  
Reply Like
Old 02-18-19, 08:48 AM
  #25  
ISFpowered
Instructor
Thread Starter
 
ISFpowered's Avatar
 
Join Date: Mar 2018
Location: California
Posts: 992
Received 342 Likes on 216 Posts
Default
I also wonder why two BOV痴 for only 7psi when just one would be more then enough and cut back the cost a bit along with weight.
ISFpowered is offline  
Reply Like
Old 02-18-19, 10:54 AM
  #26  
MileHIFcar
Pole Position
 
MileHIFcar's Avatar
 
Join Date: Feb 2015
Location: Colorado
Posts: 2,672
Received 402 Likes on 256 Posts
Default
I thought Rafi said something along the lines of longevity and responsiveness vs just one as quoted below:

  • Dual "Big Bubba" billet blow off Valves: We use not one, but TWO Turbosmart "Big Bubba" 2" blow off valves. Adequate venting is essential for SC responsiveness, reliability, and drivability.
MileHIFcar is offline  
Reply Like
Old 02-18-19, 11:18 AM
  #27  
ISFpowered
Instructor
Thread Starter
 
ISFpowered's Avatar
 
Join Date: Mar 2018
Location: California
Posts: 992
Received 342 Likes on 216 Posts
Default
Originally Posted by MileHIFcar
I thought Rafi said something along the lines of longevity and responsiveness vs just one as quoted below:
  • Dual "Big Bubba" billet blow off Valves: We use not one, but TWO Turbosmart "Big Bubba" 2" blow off valves. Adequate venting is essential for SC responsiveness, reliability, and drivability.
Yeah but 7psi is low. One turbosmart or tial BOV is more then enough for that. I have a friend of mine boosting I think 15psi on his mustang and only uses one tial BOV no issues or surging.
ISFpowered is offline  
Reply Like
Old 02-18-19, 12:17 PM
  #28  
ljdsong
Intermediate
iTrader: (1)
 
ljdsong's Avatar
 
Join Date: Apr 2009
Location: CA BAYAREA
Posts: 437
Received 148 Likes on 72 Posts
Default
Originally Posted by ISFpowered


What part of Cali do you live in? Just curious to hear and see it in person if you don稚 mind. Do you have any pictures of your car?
Im in Sacramento CA. area. You are welcome to visit me here and maybe test drive the car.
leo
ljdsong is offline  
Reply Like
Old 02-18-19, 02:35 PM
  #29  
ISFpowered
Instructor
Thread Starter
 
ISFpowered's Avatar
 
Join Date: Mar 2018
Location: California
Posts: 992
Received 342 Likes on 216 Posts
Default
Originally Posted by ljdsong
Im in Sacramento CA. area. You are welcome to visit me here and maybe test drive the car.
leo
Awesome! I appreciate that I知 actually headed up there next month so I値l message you prior but I値l let you do the driving lol.
ISFpowered is offline  
Reply Like
Old 02-18-19, 11:15 PM
  #30  
tas02
Lexus Test Driver
iTrader: (2)
 
tas02's Avatar
 
Join Date: Jul 2015
Location: WA
Posts: 1,063
Received 31 Likes on 29 Posts
Default
Originally posted by ljdsong:

"That dyno graph above is done with e30 mix but like what I said is not accurate coz the engine air filter is not cleaned since I install the ss kit plus the blower of the dyno shop is not enough."

That your ringlands are still intact after this sort of abuse speaks volumes for the durability of the tune.


tas02 is offline  
Reply Like



Advanced Search
Quick Reply: DD supercharged ISF good idea?


Reply Closed Thread Share
Forum Jump

All times are GMT -7. The time now is 04:25 AM.