FunkyBuddha
Tuned by Slick Nick
- :
- 2003 Spicy Orange MSP
Dyno'd Ractive header.
- Thread starter Blown
- Start date
mmm.....ceramic coating.....good investment!
Laser03pro
Member
- :
- 1995 Miata
So you paid 160 for the coating right how much did you pay for your headers.
FunkyBuddha
Tuned by Slick Nick
- :
- 2003 Spicy Orange MSP
Paid 295cdn
Using a 4-1 header seems like it just moves power around instead of making more. I had a 4-1 Kamakazi with a 2.25 collector on my civic, only reason I did a 4-1 is because it was supercharged and the primaries were huge! I don't think I'd want to do a 4-1 on a "torquey" 4cyl. The numbers are good though, just not a fan of losing torque.Mike R said:
what RPM did you make each number at? That has a big effect on other things, including future engine mods.
From what people have told me, unless you get cams, it's better to get the 4-2-1 headers so that you don't lose torque. This is the chrome, ractive, 4-1 we're talking about right?
From what people have told me, unless you get cams, it's better to get the 4-2-1 headers so that you don't lose torque. This is the chrome, ractive, 4-1 we're talking about right?
Yep, they are better suited for a Honda(or any other high RPM 4 banger). I remember the debate about the 4-1 on the FS when the group buy was going on. I wouldn't get one for my car. I'm waiting for a used AWR at the momentReplica said:
The numbers are good, but for what I'm doing I want as much tq as possible.For the price and the fact that it's 1 of only 3 direct fit headers it good deal.
If you look at my dyno-chart you can see that it started to add torque from 3000rpm and on over my baseline. I don't mean a little tq but a lot of tq! It's all in the design of the header. Sure, typical 4-1 race headers are used for high-end gains in the honda camp but they are also used for mid-range gains. It has to do where the placement of the collector is.Replica said:
I'm having a hard time reading your dyno on page 2 (silly)Blown said:
107 before the header and 116 after? My baseline was 111 so with exhaust and header you made 5 trq over my baseline. It isn't a fair comparison though, as all motors and dynos are different. Not all power adders are concurrent with other cars results. Blah, I wish this was an exact science! (cheers)
Replica - 107 .7 is not corrected for sea-level. We're at 2200ft above sea-level, so, it's detrimental to the HP output. If you look at my first dyno chart, 114.4HP is corrected for sealevel(the baseline, the other 2 lines were of the car warmed up). So, I crossed out the numbers on my 2nd chart and replaced them with the corrected values. At the time of my baseline, a ES was there with I/E and was putting out similar numbers. Even if you look at Scorch's results, we're all around the same place. Except my tq is low. Must be something to do with my grounding kit.
Maxx Mazda
Contributor
- :
- Stock P5
Throttle response is much better with my Ractive. Throw aside the actual dyno results for a second, and let my old ass dyno tell the story. 
The bottom end torque has picked up quite a bit, making the car much more streetable. It really has more pull throughout the powerband, but espesially in the lower ranges where the car struggled before. The sound is intoxicating. Very throaty and loud with my Mazdaspeed exhaust. Ask Glen (FunkyBuddha) what he thinks. Him and I just put his on this morning.
The bottom end torque has picked up quite a bit, making the car much more streetable. It really has more pull throughout the powerband, but espesially in the lower ranges where the car struggled before. The sound is intoxicating. Very throaty and loud with my Mazdaspeed exhaust. Ask Glen (FunkyBuddha) what he thinks. Him and I just put his on this morning.FunkyBuddha
Tuned by Slick Nick
- :
- 2003 Spicy Orange MSP
Ok..Maxx Mazda and I just put mine on this morning. Woot!
iluvmacs - maybe I can answer some of your questions.
Throttle response - big time improvement. tap the gas lightly, and the tach needle jumps
Flywheel spool time/speed - can't really tell but the rev time is basically matched to throttle response and it's quite a bit faster. Launches are easier and heal/toe techniques are easier as it rev matches quicker on the downshifts.
No noticeable handling improvements for me although we did lose about 10-20lbs.
Oh if you guys are thinking about this header, get it ceramic coated. My engine bay is noticeably cooler and my intake pipe isn't as warm as it used to be.
iluvmacs - maybe I can answer some of your questions.
Throttle response - big time improvement. tap the gas lightly, and the tach needle jumps
Flywheel spool time/speed - can't really tell but the rev time is basically matched to throttle response and it's quite a bit faster. Launches are easier and heal/toe techniques are easier as it rev matches quicker on the downshifts.
No noticeable handling improvements for me although we did lose about 10-20lbs.
Oh if you guys are thinking about this header, get it ceramic coated. My engine bay is noticeably cooler and my intake pipe isn't as warm as it used to be.