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Old 09-20-2007, 01:56 PM   #1
Joker
 
Drives: 2007 Yaris S
Join Date: Jul 2007
Location: Illinois
Posts: 8
Quote:
Alright, everyone put their balls away... If the car feels faster, unless you are racing at the track, isn't that all that really matters??? If it accelerates more smoothly(and this car could really use it, damn drive by wire!!!) for most of us who cares how many tenths you gain. Most people enjoy the car on a daily basis EXACTLY BY THE WAY IT FEELS when you drive it, not by what some meter tells you. If you want the tenths and to dyno it, feel free, but for the rest of us, the butt dyno is more than enough. And by the way the DC sports header is supposed to have a longer tube design that compensates for the lower rpm problem, sounds valid to me.

I can appreciate your opinion, some people simply want to THINK they are gaining something by spending $ on this mod and that. I posted for some of the less experienced people on this board. I personally dont see the point of spending $ on a claimed "performance" mod and gain nothing. Why buy a preformance part in the first place?

As far as the longer tube design, etc. of the DC Header....all you need to do is stroll over to DC's website like I said, its all spelled out in black and white. 4 into 1's are designed for high applications (5000-8000 rpm). Note they specfically make headers designed for Low-Mid rpm range, their 4 into 2 into 1. Why would a manufacturer make different header designs? Headers are application specific thats why.

Ashley--I'm glad you received the part for free, others on this board will not. I dont need to boast about how long I've been tuning and modifying cars but I will tell you its alot longer than 5 years. I have been semi-pro drag racing for more years than you have been tuning cars. I have a Cartech twin turbo charged mustang that in its current state of tune lays down in excess of 900+ hp to the wheels with over 1000 ft lbs of torque and runs mid to low 9's in the quarter mile AND those claims can be backed up w/dyno's and timeslips.

As far as your claimed 550 hp Cobra, unless you have had it on a dyno then its paper horsepower. Because a manufacturer claims you will gain XXX amount of horsepower doesnt mean you will. I have heard it all before, how someones car runs 10's, 11's doesnt really matter yet the car has never been down the quarter mile track before.

Like I said originally, my post was to geared toward the inexperienced people on the board and there seems to be plenty. I just dont want to see people wasting their money on items that provide little or no benefit to them.

Peace

Tony
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Old 09-20-2007, 02:29 PM   #2
AlphaFox
 
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Drives: 07' Yaris Liftback - silver
Join Date: May 2006
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Quote:
Originally Posted by Joker View Post
I dont need to boast about how long I've been tuning and modifying cars but...
BUT, you just did...
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Old 09-20-2007, 04:02 PM   #3
nqd
 
Drives: 07 Yaris LB Absolute RED
Join Date: Apr 2007
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Originally Posted by AlphaFox View Post
BUT, you just did...
your such a smart ass
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Old 09-20-2007, 06:23 PM   #4
largeorangefont
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Drives: 07 Yaris LB, 04 Cobra
Join Date: Jan 2007
Location: So Cal, OC
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Quote:
Originally Posted by Joker View Post
I can appreciate your opinion, some people simply want to THINK they are gaining something by spending $ on this mod and that. I posted for some of the less experienced people on this board. I personally dont see the point of spending $ on a claimed "performance" mod and gain nothing. Why buy a preformance part in the first place?

As far as the longer tube design, etc. of the DC Header....all you need to do is stroll over to DC's website like I said, its all spelled out in black and white. 4 into 1's are designed for high applications (5000-8000 rpm). Note they specfically make headers designed for Low-Mid rpm range, their 4 into 2 into 1. Why would a manufacturer make different header designs? Headers are application specific thats why.

Ashley--I'm glad you received the part for free, others on this board will not. I dont need to boast about how long I've been tuning and modifying cars but I will tell you its alot longer than 5 years. I have been semi-pro drag racing for more years than you have been tuning cars. I have a Cartech twin turbo charged mustang that in its current state of tune lays down in excess of 900+ hp to the wheels with over 1000 ft lbs of torque and runs mid to low 9's in the quarter mile AND those claims can be backed up w/dyno's and timeslips.

As far as your claimed 550 hp Cobra, unless you have had it on a dyno then its paper horsepower. Because a manufacturer claims you will gain XXX amount of horsepower doesnt mean you will. I have heard it all before, how someones car runs 10's, 11's doesnt really matter yet the car has never been down the quarter mile track before.

Like I said originally, my post was to geared toward the inexperienced people on the board and there seems to be plenty. I just dont want to see people wasting their money on items that provide little or no benefit to them.

Peace

Tony
Tony,

You are missing the point. This header is designed to make more low end than the FACTORY design. The OEM manifold is 4-1, with very short primaries. The DC is 4-1 with longer primaries. Saying that 4-1 is great for 5000 RPM+ and referencing DC's website is irrelevant to the conversation. If you are a semi pro drag racer you know that there is more to a header design than the merge collector. Without touching the midpipe cats (which is illegal for roadgoing cars) it would be VERY hard to make a 4-2-1 header that works well with the space the in the Yaris. If you did it would be close to double the cost.

A dyno print out IS paper horsepower, but I'm glad you have verified the power of your car with timeslips. Yes I have dynoed my Cobra, but I don't drag race it, it is set up for open track. My experience reference was trying to tell you that I know what I'm talking about when I stated there was a noticable improvement from adding this header. If you want to talk total experience, this is not the place to discuss our failed racing careers.

Last edited by largeorangefont; 09-20-2007 at 06:34 PM.
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