ISR mod, one week later...
#1
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ISR mod, one week later...
Did the ISR mode last week on my 2000 Limited. Pretty happy with how it sounds under heavy acceleration, yet is quiet when cruising at 2000 RPM's. My ass Dyno seems to say that there is a noticable increase in power, especially mid-high RPM's. I didn't tell my wife that I had did it, and after driving the truck in the city she asked, "did you do something to the truck, it seems more peppy." I have never been so proud to call her my wife.
I was curious about MPG changes after this mod. While I am pretty into tracking my milage (especially at $1.10/Liter!!) so I was very disapointed when I only was getting 16-17 MPG on the highway the last two road trips (PRE ISR MOD.) Just got back from a 400 mile trip this weekend, and my gas milage was 19.5 MPG and 21 MPG. The only change I made was the ISR.
CONCLUSION: BETTER SOUND, BETTER POWER, BETTER MPG
I was curious about MPG changes after this mod. While I am pretty into tracking my milage (especially at $1.10/Liter!!) so I was very disapointed when I only was getting 16-17 MPG on the highway the last two road trips (PRE ISR MOD.) Just got back from a 400 mile trip this weekend, and my gas milage was 19.5 MPG and 21 MPG. The only change I made was the ISR.
CONCLUSION: BETTER SOUND, BETTER POWER, BETTER MPG
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move to newbie thread
You are so cool kevin, I hope one day I can have as many posts as you so I can say cool stuff like that and be a prick to someone for no reason
You are so cool kevin, I hope one day I can have as many posts as you so I can say cool stuff like that and be a prick to someone for no reason
Last edited by OSU4Runner; 05-06-2007 at 07:44 PM.
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What does that have to do with anything? I am just posting my experiances, thought that some people might benifit. No one is forceing you to read it. It must be easy to get 1600 posts when this is all you contribute to the site.
I just did the ISR, no deckplate yet. I agree that I need to do a few more trips to get MPG #'s, just happy with what I have gotten so far.
I just did the ISR, no deckplate yet. I agree that I need to do a few more trips to get MPG #'s, just happy with what I have gotten so far.
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Ok, now back on topic...
#11
K_southman,
I am tracking my mileage as well. I averaged around 17 mpg . HOWEVER, following a deckplate mod, ISR mod, True flow air filter, and MAF sensor cleaning, my mileage has averaged 18.5 - 18.6 with an increased throttle response (towing a 500 lb. lawn mower on a trailer). I even hit 19.6 mpgs w/o the trailer towing . The ONLY regret that I have is that I did not do it all sooner...Good luck
Regards,
BWJ
I am tracking my mileage as well. I averaged around 17 mpg . HOWEVER, following a deckplate mod, ISR mod, True flow air filter, and MAF sensor cleaning, my mileage has averaged 18.5 - 18.6 with an increased throttle response (towing a 500 lb. lawn mower on a trailer). I even hit 19.6 mpgs w/o the trailer towing . The ONLY regret that I have is that I did not do it all sooner...Good luck
Regards,
BWJ
Last edited by bigwapitijohnny; 05-07-2007 at 05:45 AM.
#12
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Did the ISR mode last week on my 2000 Limited. Pretty happy with how it sounds under heavy acceleration, yet is quiet when cruising at 2000 RPM's. My ass Dyno seems to say that there is a noticable increase in power, especially mid-high RPM's. I didn't tell my wife that I had did it, and after driving the truck in the city she asked, "did you do something to the truck, it seems more peppy." I have never been so proud to call her my wife.
I was curious about MPG changes after this mod. While I am pretty into tracking my milage (especially at $1.10/Liter!!) so I was very disapointed when I only was getting 16-17 MPG on the highway the last two road trips (PRE ISR MOD.) Just got back from a 400 mile trip this weekend, and my gas milage was 19.5 MPG and 21 MPG. The only change I made was the ISR.
CONCLUSION: BETTER SOUND, BETTER POWER, BETTER MPG
I was curious about MPG changes after this mod. While I am pretty into tracking my milage (especially at $1.10/Liter!!) so I was very disapointed when I only was getting 16-17 MPG on the highway the last two road trips (PRE ISR MOD.) Just got back from a 400 mile trip this weekend, and my gas milage was 19.5 MPG and 21 MPG. The only change I made was the ISR.
CONCLUSION: BETTER SOUND, BETTER POWER, BETTER MPG
I've done the mod as well, but my mpgs didn't really improve. I was avg 19-23 mpg doing 60% - 100% highway driving before and now after this mod, I'm still getting the same (guess it's hard to improve on something that is already good). However, I can feel the small gain in acceleration.
Cool your wife noticed it
Last edited by Rock Slide; 05-09-2007 at 01:37 PM.
#16
doing it in conjunction with the deckplate gives a verrrry noticable sound difference, however yeah crusing you still dont hear it inless you do exhaust upgrades like I have done.
show us a pic of the engine bay, i need to redo my ISR area.
show us a pic of the engine bay, i need to redo my ISR area.
#17
I feel the same way... I had removed it for a day, got sick of the noise, and put the silencer back on. I noticed a difference in performance with the deckplate and the noise is tolerable, but the ISR is just obnoxious imo...
Last edited by Rescue84; 05-09-2007 at 01:42 PM. Reason: I wish I could spell...
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