mazzuri super headers
04-18-08, 12:33 PM
#481
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Join Date: May 2007
Location: CO
Posts: 241
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i got an is300 but im willing to contribute. I give big props to Toptier for doin this . Big up to you man
you too daniel, i love the fact that ur so personally involved with your current and prospective customers. You answer all the questions people have,you provide great customer service and that puts alot of faith in your products.
thanks a ton
you too daniel, i love the fact that ur so personally involved with your current and prospective customers. You answer all the questions people have,you provide great customer service and that puts alot of faith in your products.
thanks a ton
Daniel thanks for being gracious enough to make of set of headers for me.
04-21-08, 04:16 PM
#490
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Join Date: May 2007
Location: CO
Posts: 241
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Alright the moment of truth is finally here. The numbers are a bit disappointing compared to the IS250. The graph is of the base done last week before the headers were installed and todays dyno. As you can see the gains were very minimal. A peak gain of 5.4 lbft tq and 3 hp. There is a pretty big gain in low end tq.
Maybe the headers will need a design change? Daniel if you decide to redesign them I will happily be your test mule.
Before anyone asks I have a little over 500 miles on the headers.
Maybe the headers will need a design change? Daniel if you decide to redesign them I will happily be your test mule.
Before anyone asks I have a little over 500 miles on the headers.
04-21-08, 04:28 PM
#491
Alright the moment of truth is finally here. The numbers are a bit disappointing compared to the IS250. The graph is of the base done last week before the headers were installed and todays dyno. As you can see the gains were very minimal. A peak gain of 5.4 lbft tq and 3 hp. There is a pretty big gain in low end tq.
Maybe the headers will need a design change? Daniel if you decide to redesign them I will happily be your test mule.
Before anyone asks I have a little over 500 miles on the headers.
Maybe the headers will need a design change? Daniel if you decide to redesign them I will happily be your test mule.
Before anyone asks I have a little over 500 miles on the headers.
BTW, how many dyno fund donations did you end up getting?
04-21-08, 04:32 PM
#492
Judging from the dyno it doesn't appear full throttle was applied until after 4300rpm. So the data to the left of 4300rpms may not be of much value. I assume 4th gear was used for all runs, but what mode was it in? (snow/norm/pwr)
You did gain some power though not much, so my only assumption is that the secondary cats and rest of the exhaust may be holding you back from the full potential of the headers.
Thank you from all of us for doing this unbiased testing.
You did gain some power though not much, so my only assumption is that the secondary cats and rest of the exhaust may be holding you back from the full potential of the headers.
Thank you from all of us for doing this unbiased testing.
04-21-08, 04:33 PM
#493
That low end torque increase is pretty impressive, and actually what you should feel the most.
IMO low end torque is better than high end hp any day of the week.
edit: assuming that they were equally run tests (cayman beat me with his post)
IMO low end torque is better than high end hp any day of the week.
edit: assuming that they were equally run tests (cayman beat me with his post)