PPE IS350 Headers
10-06-09, 11:47 PM
#34
Lexus Fanatic
iTrader: (10)
Join Date: Nov 2004
Location: Under an IS F since 2008
Posts: 13,441
Received 1,064 Likes
on
586 Posts
This is Great news...!!
Interested in seeing before and after dynos completed on a stock IS350..
This will give a better read out of actual gains from just the headers..
Regards,
Joe Z
Interested in seeing before and after dynos completed on a stock IS350..
This will give a better read out of actual gains from just the headers..
Regards,
Joe Z
10-07-09, 03:24 AM
#36
When I saw 265 "before" I kinda assumed it was otherwise stock since I'm pretty sure I've seen stock 350s dyno that.
Obviously gains are gains, but if uncorking decent power from these headers requires an extra +1k exhaust behind it that obviously changes the bang/buck math a touch.
What I'd love to see is a before/after dyno on a bone stock 2IS changing nothing but the headers (and ideally leaving the secondary cats in place so that, while still illegal, the car would still at least stand a chance of fooling a visual inspection)
10-07-09, 07:06 AM
#37
Yeah, I'm waiting for them to be sent to me though.
This.
When I saw 265 "before" I kinda assumed it was otherwise stock since I'm pretty sure I've seen stock 350s dyno that.
Obviously gains are gains, but if uncorking decent power from these headers requires an extra +1k exhaust behind it that obviously changes the bang/buck math a touch.
What I'd love to see is a before/after dyno on a bone stock 2IS changing nothing but the headers (and ideally leaving the secondary cats in place so that, while still illegal, the car would still at least stand a chance of fooling a visual inspection)
When I saw 265 "before" I kinda assumed it was otherwise stock since I'm pretty sure I've seen stock 350s dyno that.
Obviously gains are gains, but if uncorking decent power from these headers requires an extra +1k exhaust behind it that obviously changes the bang/buck math a touch.
What I'd love to see is a before/after dyno on a bone stock 2IS changing nothing but the headers (and ideally leaving the secondary cats in place so that, while still illegal, the car would still at least stand a chance of fooling a visual inspection)
Also, keep in mind we used a Mustang Dyno, which typically reads lower than Dynojets. The car would probably dyno much closer to 300 on a Dynojet, however a question of accuracy then arises.
10-07-09, 07:13 AM
#38
I am very interested in the sound, rasppy? how is it?
I would also say that most people who go the extra mile to get these headers are probably those to have aftermarket exhaust
I would also say that most people who go the extra mile to get these headers are probably those to have aftermarket exhaust
10-07-09, 07:16 AM
#39
I think as long as all the pulls are done on the same machine, under similar conditions, the numbers will be pretty accurate.
10-07-09, 09:25 AM
#40
Pole Position
Join Date: Feb 2007
Location: CA
Posts: 276
Likes: 0
Received 0 Likes
on
0 Posts
10-07-09, 10:33 AM
#41
Lexus Fanatic
iTrader: (10)
Join Date: Nov 2004
Location: Under an IS F since 2008
Posts: 13,441
Received 1,064 Likes
on
586 Posts
Unfortunately we were unable to dyno it stock as I had done my mods already. Based on specs and design, the gains should be around the same. Nonetheless, I believe they are going to design a full header/exhaust system as well, which would allow someone to take full advantage of bolting on ~30rwhp for a lot less money than forced induction.
Also, keep in mind we used a Mustang Dyno, which typically reads lower than Dynojets. The car would probably dyno much closer to 300 on a Dynojet, however a question of accuracy then arises.
Also, keep in mind we used a Mustang Dyno, which typically reads lower than Dynojets. The car would probably dyno much closer to 300 on a Dynojet, however a question of accuracy then arises.
Start with stock / base dynos.. Then dyno just the header to see the gains..
Then dyno with a custom exhaust to see the gains..
or if they make another full system, dyno that after all the other numbers have been properly obtained..
Just a suggestion on "how to" properly obtain the correct data.
**Might be time for them to get a stock IS350 in there hands, to complete the Dyno R&D on just the headers.
Regards,
Joe Z
10-07-09, 11:24 AM
#43
Forum Administrator
iTrader: (2)
10-07-09, 01:35 PM
#44
Seems a few of us are all suggesting the same thing here...
Start with stock / base dynos.. Then dyno just the header to see the gains..
Then dyno with a custom exhaust to see the gains..
or if they make another full system, dyno that after all the other numbers have been properly obtained..
Just a suggestion on "how to" properly obtain the correct data.
**Might be time for them to get a stock IS350 in there hands, to complete the Dyno R&D on just the headers.
Regards,
Joe Z
Start with stock / base dynos.. Then dyno just the header to see the gains..
Then dyno with a custom exhaust to see the gains..
or if they make another full system, dyno that after all the other numbers have been properly obtained..
Just a suggestion on "how to" properly obtain the correct data.
**Might be time for them to get a stock IS350 in there hands, to complete the Dyno R&D on just the headers.
Regards,
Joe Z
I'd be curious to know if my intake made a difference or if I would make more hp using yours
..The coating is totally necessary unless you want rusted headers. I had mine coated with the black and they look SWEET.
