J-Pipe update: For those interested and those who have the mod
10-11-2010, 07:43 AM
#1
Pro
Thread Starter
J-Pipe update: For those interested and those who have the mod
Alright, I went to see my family in Ottawa and finally got a chance to get a good normal 3 hours 15 minutes drive with the XLR8 J-Pipe installed. Here are my impressions and more importantly, some numbers:
Facts:
1) Outside temperature was around 16 Celcius;
2) The drive occured during the afternoon;
3) There was numerous construction sites throughtout the drive but I didn't need to stop, only slowed me down;
4) Cruise control was set at 70 mph for 70 % of the drive, excluding Ottawa and Montreal ;
5) Average speed was 65 mph;
6) My usual drive gave me between 26-26.3 MPG before installing the J-Pipe.
Results:
1) My average MPG went to 27.7 MPG, so its a 5 % increase in FE during highway trips;
2) Passing power in 4th in increased upto the point that I can easily pass cars if my RPMs are around 3000+, no need to dwnshift in 3rd anymore;
3) FE stayed the same for city driving, around 16-16.5 mpg (I use the Takeda intake, which caused a loss of roughtly 1-1.5 mpg in city driving).
4) I now have a growl around 1 500-2 250 RPM when moving the car after a stop or near-stop, which I think is quite annoying. This is the only minus so far.
I would like some thoughts of the other owners of this mod. We could have a good, dedicated thread to facts and impressions.
I hope it will be useful to many people!
Have a great day!
-YetiTL
Facts:
1) Outside temperature was around 16 Celcius;
2) The drive occured during the afternoon;
3) There was numerous construction sites throughtout the drive but I didn't need to stop, only slowed me down;
4) Cruise control was set at 70 mph for 70 % of the drive, excluding Ottawa and Montreal ;
5) Average speed was 65 mph;
6) My usual drive gave me between 26-26.3 MPG before installing the J-Pipe.
Results:
1) My average MPG went to 27.7 MPG, so its a 5 % increase in FE during highway trips;
2) Passing power in 4th in increased upto the point that I can easily pass cars if my RPMs are around 3000+, no need to dwnshift in 3rd anymore;
3) FE stayed the same for city driving, around 16-16.5 mpg (I use the Takeda intake, which caused a loss of roughtly 1-1.5 mpg in city driving).
4) I now have a growl around 1 500-2 250 RPM when moving the car after a stop or near-stop, which I think is quite annoying. This is the only minus so far.
I would like some thoughts of the other owners of this mod. We could have a good, dedicated thread to facts and impressions.
I hope it will be useful to many people!
Have a great day!
-YetiTL
10-11-2010, 11:06 AM
#2
i never really watched my mileage, but i drove from Toronto to Montreal a few days ago, always going above 120-130 km/h, got 536 km on the tank with the gauge reading more than a 1/4 tank remaining. At that rate 700 km was possible.
The growl at low rpm i love, the car needed more sound, maybe yours sounds different but i enjoy mine. Passing power has changed, i love 1st gear light throttle, the car doesn't take time to get into it's "groove" just goes.
can't wait for cat back
The growl at low rpm i love, the car needed more sound, maybe yours sounds different but i enjoy mine. Passing power has changed, i love 1st gear light throttle, the car doesn't take time to get into it's "groove" just goes.
can't wait for cat back
10-11-2010, 11:16 AM
#3
Racer
Join Date: Jan 2010
Location: Texas, Ft. Hood area
Age: 40
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I have the Takeda plus the J-pipe and high flo cat. I must admit that the growl when gunning it is probably too addicting. I love cruising with what sounds like a stock exhaust only to gun it and litterally turn heads. This has lead to an obvious drop in fuel efficiency due to lead foot. However, I wouldn't trade it for the world. I want to add the cat back, but I don't really want a louder exhuast, especially at cruising rpms.
10-11-2010, 11:18 AM
#4
Oh man...I used to LOVE that growl...lol.
Nice write up though....not sure how many people that are actually modding are overly worried about fuel economy though. Once I start modding...thats generally something I dont even pay attention to for the most part. But good points made and good information!
Nice write up though....not sure how many people that are actually modding are overly worried about fuel economy though. Once I start modding...thats generally something I dont even pay attention to for the most part. But good points made and good information!
Last edited by MichaelBenz; 10-11-2010 at 11:20 AM.
10-11-2010, 11:42 AM
#5
i never really watched my mileage, but i drove from Toronto to Montreal a few days ago, always going above 120-130 km/h, got 536 km on the tank with the gauge reading more than a 1/4 tank remaining. At that rate 700 km was possible.
The growl at low rpm i love, the car needed more sound, maybe yours sounds different but i enjoy mine. Passing power has changed, i love 1st gear light throttle, the car doesn't take time to get into it's "groove" just goes.
can't wait for cat back
The growl at low rpm i love, the car needed more sound, maybe yours sounds different but i enjoy mine. Passing power has changed, i love 1st gear light throttle, the car doesn't take time to get into it's "groove" just goes.
can't wait for cat back
http://store.excelerateperformance.c.../i-399077.aspx
10-11-2010, 04:37 PM
#6
Pro
Thread Starter
The cat back is now up for sale!!! It will be available to ship within 1-2 weeks.
http://store.excelerateperformance.c.../i-399077.aspx
http://store.excelerateperformance.c.../i-399077.aspx
I love your choice of design!
It looks quite stock, only nicer! Kudos to you!
10-11-2010, 04:40 PM
#7
Pro
Thread Starter
Oh man...I used to LOVE that growl...lol.
Nice write up though....not sure how many people that are actually modding are overly worried about fuel economy though. Once I start modding...thats generally something I dont even pay attention to for the most part. But good points made and good information!
Nice write up though....not sure how many people that are actually modding are overly worried about fuel economy though. Once I start modding...thats generally something I dont even pay attention to for the most part. But good points made and good information!
That sounds like a fair deal to me!
Trending Topics
10-11-2010, 11:15 PM
#8
Well I understand totally what you mean but I wanted to give all the info I gathered, the pluses and the minuses. And I agree with you on FE. It's quite nice actually since I drive this car 50/50 city/highway so the increase FE of the J-Pipe will counterbalance the FE penalty of the Intake netting me only increased power. That sounds like a fair deal to me!
That sounds like a fair deal to me!
10-18-2010, 07:51 PM
#10
Pro
Thread Starter
If it's proven that it caused damage to your car, then yes. But I can't see any reason the J-pipe would pose any problem: no sensors around and make in 304 stainless steel with appropriate gaskets...
10-19-2010, 07:39 AM
#11
Intermediate
Alright, I went to see my family in Ottawa and finally got a chance to get a good normal 3 hours 15 minutes drive with the XLR8 J-Pipe installed. Here are my impressions and more importantly, some numbers:
Facts:
1) Outside temperature was around 16 Celcius;
2) The drive occured during the afternoon;
3) There was numerous construction sites throughtout the drive but I didn't need to stop, only slowed me down;
4) Cruise control was set at 70 mph for 70 % of the drive, excluding Ottawa and Montreal ;
5) Average speed was 65 mph;
6) My usual drive gave me between 26-26.3 MPG before installing the J-Pipe.
Results:
1) My average MPG went to 27.7 MPG, so its a 5 % increase in FE during highway trips;
2) Passing power in 4th in increased upto the point that I can easily pass cars if my RPMs are around 3000+, no need to dwnshift in 3rd anymore;
3) FE stayed the same for city driving, around 16-16.5 mpg (I use the Takeda intake, which caused a loss of roughtly 1-1.5 mpg in city driving).
4) I now have a growl around 1 500-2 250 RPM when moving the car after a stop or near-stop, which I think is quite annoying. This is the only minus so far.
I would like some thoughts of the other owners of this mod. We could have a good, dedicated thread to facts and impressions.
I hope it will be useful to many people!
Have a great day!
-YetiTL
Facts:
1) Outside temperature was around 16 Celcius;
2) The drive occured during the afternoon;
3) There was numerous construction sites throughtout the drive but I didn't need to stop, only slowed me down;
4) Cruise control was set at 70 mph for 70 % of the drive, excluding Ottawa and Montreal ;
5) Average speed was 65 mph;
6) My usual drive gave me between 26-26.3 MPG before installing the J-Pipe.
Results:
1) My average MPG went to 27.7 MPG, so its a 5 % increase in FE during highway trips;
2) Passing power in 4th in increased upto the point that I can easily pass cars if my RPMs are around 3000+, no need to dwnshift in 3rd anymore;
3) FE stayed the same for city driving, around 16-16.5 mpg (I use the Takeda intake, which caused a loss of roughtly 1-1.5 mpg in city driving).
4) I now have a growl around 1 500-2 250 RPM when moving the car after a stop or near-stop, which I think is quite annoying. This is the only minus so far.
I would like some thoughts of the other owners of this mod. We could have a good, dedicated thread to facts and impressions.
I hope it will be useful to many people!
Have a great day!
-YetiTL
10-19-2010, 02:58 PM
#12
Pro
Thread Starter
And no, I don't stomp more on gas with the intake, I'm not 18 yo anymore. I stomp on the gas before the intake...
We have a semi-cold air intake from the factory with the air coming from around the radiator so it might explain a bit why I see a MPG decrease with a SRI. But I'm no mechanic and you shouldn't pick my writings as a holy text...
11-30-2010, 08:44 PM
#17
I have the Takeda plus the J-pipe and high flo cat. I must admit that the growl when gunning it is probably too addicting. I love cruising with what sounds like a stock exhaust only to gun it and litterally turn heads. This has lead to an obvious drop in fuel efficiency due to lead foot. However, I wouldn't trade it for the world. I want to add the cat back, but I don't really want a louder exhuast, especially at cruising rpms.
12-01-2010, 09:55 AM
#18
The exhaust manifolds are built into the heads on the J37. What he has is our j-pipe and high flow third cat.
http://store.excelerateperformance.c.../i-349736.aspx
http://store.excelerateperformance.c.../i-349577.aspx
http://store.excelerateperformance.c.../i-349736.aspx
http://store.excelerateperformance.c.../i-349577.aspx
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