View Poll Results: Going from 2in exhaust,to a 3in, longtube header, 2.25 Ypipe,on 8000K ITB Rev make?
1-5WHP
10
12.66%
5-10WHP
17
21.52%
10-15WHP
13
16.46%
15-20WHP
20
25.32%
20-30WHP
19
24.05%
Voters: 79. You may not vote on this poll
Kevin's VQ35DE NA Build Epilogue..
06-04-2010, 03:43 PM
#61
Registered User
Thread Starter
Join Date: Apr 2009
Location: South Florida
Posts: 255
Likes: 0
Received 0 Likes
on
0 Posts
06-04-2010, 03:57 PM
#63
Registered User
Thread Starter
Join Date: Apr 2009
Location: South Florida
Posts: 255
Likes: 0
Received 0 Likes
on
0 Posts
06-04-2010, 04:04 PM
#64
Registered User
Thread Starter
Join Date: Apr 2009
Location: South Florida
Posts: 255
Likes: 0
Received 0 Likes
on
0 Posts
Some videos of track time with the 2in pipe, messed up suspension, cockeyed motor. Just some issues I'm fixing this time around, remount the engine correctly, new control arms installed. New suspension, no squishy nismo suspension. FWD a lota issues with the squat and losing traction on the front tires, I know you guys don't have to worry about it but ya get the idea.
2 videos on slicks after I started to see something was going wrong with alignment etc.
http://www.youtube.com/watch?v=4m1Gz7UWL-w
http://www.youtube.com/watch?v=nI6NKmcTaLA
My street tires track time.
http://www.youtube.com/watch?v=y9c9Vk6Np3o
My slicks track times fighting the bad alignment show in the above videos, scary with that much pull you aren't used to.
http://www.youtube.com/watch?v=x-GKvNVw3uE
http://www.youtube.com/watch?v=ViWQwCGzhdQ
To more pressing matters, vote on the HP difference in crappy exhaust to proper exhaust! I'm not a crazy shifter and am new to the track so if you think I shift slow, I do. Wasn't out to murder the car the first 2 times out lol.
2 videos on slicks after I started to see something was going wrong with alignment etc.
http://www.youtube.com/watch?v=4m1Gz7UWL-w
http://www.youtube.com/watch?v=nI6NKmcTaLA
My street tires track time.
http://www.youtube.com/watch?v=y9c9Vk6Np3o
My slicks track times fighting the bad alignment show in the above videos, scary with that much pull you aren't used to.
http://www.youtube.com/watch?v=x-GKvNVw3uE
http://www.youtube.com/watch?v=ViWQwCGzhdQ
To more pressing matters, vote on the HP difference in crappy exhaust to proper exhaust! I'm not a crazy shifter and am new to the track so if you think I shift slow, I do. Wasn't out to murder the car the first 2 times out lol.
06-04-2010, 05:19 PM
#67
Registered User
Thread Starter
Join Date: Apr 2009
Location: South Florida
Posts: 255
Likes: 0
Received 0 Likes
on
0 Posts
Here is all the garbage exhaust lined up.
Okay here is the measurement of the 2.25in (smallest choke on the entire setup...)
Goes into a 2.4/60MM
Here is all of the 3 sizes altogether, complete bad, 2.25in into a 2.4in into a 2.5in magnaflow resonator that I had added and failed to measure a year or so ago... After the resonator comes the 60mm 2.4in size again... I would have seen the flawed exhaust setup a year and a half ago when the resonator was put in if I had measured...
Here is the original poll question.
The question, I made it as short as possible to fit. The long version of the question is the following:
What will going from an ebay shorty header/VQ30 ypipe 1.90in I think or so, 2.25OD exhaust at its smallest choke hold TO an Altima long tube header, 2.25 Y-Pipe, and a 3in exhaust (1in ID upgrade) proper exhaust make on a cammed etc. 8000 revving ITB motor make?
Okay here is the measurement of the 2.25in (smallest choke on the entire setup...)
Goes into a 2.4/60MM
Here is all of the 3 sizes altogether, complete bad, 2.25in into a 2.4in into a 2.5in magnaflow resonator that I had added and failed to measure a year or so ago... After the resonator comes the 60mm 2.4in size again... I would have seen the flawed exhaust setup a year and a half ago when the resonator was put in if I had measured...
Here is the original poll question.
The question, I made it as short as possible to fit. The long version of the question is the following:
What will going from an ebay shorty header/VQ30 ypipe 1.90in I think or so, 2.25OD exhaust at its smallest choke hold TO an Altima long tube header, 2.25 Y-Pipe, and a 3in exhaust (1in ID upgrade) proper exhaust make on a cammed etc. 8000 revving ITB motor make?
Last edited by kgkeen101; 07-02-2010 at 05:57 PM.
06-04-2010, 05:56 PM
#68
Registered User
iTrader: (2)
Join Date: Mar 2008
Location: Sydney, Australia
Posts: 379
Likes: 0
Received 0 Likes
on
0 Posts
With no means of getting cold air from outside the car (horns hover at the top of the hood), I had the hood vented to release all the heat rising to the top of the hood that the horns are sucking in. While running the car hard, the horns end up sucking up a ton of heat as you can see they're located right at the top. Intake temps entering the horns should see up to a 30degree temp drop because of the setup we're using. My wife picked out the design and the waterjet did the work. Gota get some mesh and we'll be good to go.
Does water jet cutting ensure you don't need to paint the hood?
06-04-2010, 06:47 PM
#69
Registered User
Thread Starter
Join Date: Apr 2009
Location: South Florida
Posts: 255
Likes: 0
Received 0 Likes
on
0 Posts
Still have to paint it, and get some anti rust stuff on it if you don't paint it right away. I haven't gotten the car fully painted yet so I put some antirust stuff on it for the time being.
And if you guys think it won't make any difference just say so on the exhaust.
And if you guys think it won't make any difference just say so on the exhaust.
06-05-2010, 08:03 AM
#70
Registered User
Join Date: Jan 2010
Location: Mass
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
What brand headers are those? Can you snap a picture of what the collectors look like on the inside? I want to see how the tubes merge.
*EDIT*
Never mind, found it on ebay. I want a true equal length setup, that's why I ask..
*EDIT*
Never mind, found it on ebay. I want a true equal length setup, that's why I ask..
Last edited by dfontes1188; 06-05-2010 at 08:21 AM.
06-07-2010, 02:03 PM
#72
Registered User
Thread Starter
Join Date: Apr 2009
Location: South Florida
Posts: 255
Likes: 0
Received 0 Likes
on
0 Posts
06-07-2010, 05:41 PM
#74
Registered User
Thread Starter
Join Date: Apr 2009
Location: South Florida
Posts: 255
Likes: 0
Received 0 Likes
on
0 Posts
Nah that was on slicks, and the gtr wins in the end. Once I retune/redo the exhaust and a few other things, we'll see how well I do at the track.
06-07-2010, 07:42 PM
#75
Registered User
iTrader: (1)
Join Date: Nov 2009
Location: WC
Posts: 40
Likes: 0
Received 0 Likes
on
0 Posts
I gotta say, seeing your build and what mods you have and how much power you are making i was thinking it should be more.... THEN i saw your headers and exhaust and that all made sense. Those new headers are nice with the longer tubes but the collectors could be better... Overall i think with the new headers and 3" exhaust, you will make a good deal more power...
06-07-2010, 08:35 PM
#77
Registered User
Thread Starter
Join Date: Apr 2009
Location: South Florida
Posts: 255
Likes: 0
Received 0 Likes
on
0 Posts
I gotta say, seeing your build and what mods you have and how much power you are making i was thinking it should be more.... THEN i saw your headers and exhaust and that all made sense. Those new headers are nice with the longer tubes but the collectors could be better... Overall i think with the new headers and 3" exhaust, you will make a good deal more power...
06-08-2010, 09:32 AM
#78
Registered User
Join Date: Jan 2010
Location: Mass
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Those headers do look better, but as already stated, I'm not a fan of the collectors..
Last edited by dfontes1188; 06-08-2010 at 09:35 AM.
06-08-2010, 11:35 AM
#79
Not true, the power band and average power will suffer with an exhaust with no back pressure. Low end torque will be 0 and the powerband might only start to climb past 4-5krpm, possibly later. Wouldn't be anything more than a track car that needs to be driven at 4k rpm or higher at any one time.
06-08-2010, 11:42 AM
#80
Case in point, last week we observed the new Camaro SS gaining approximately 15whp from a exhaust, then they added HFC...which lost about half the gain then they added resonated pipe which lost all the hp they gained and went back to stock.