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Joined: Aug 2001
Posts: 17,248
CEG road warrior
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CEG road warrior
Joined: Aug 2001
Posts: 17,248 |
Originally posted by Oeneus:
I would still question the 8tq, but even at 2hp and 2 ft/lb, it is still a worthwhile mod. You don't have to make any sacrifices along the powerband, it is cheap, and it is easy to install. What more can you want?
Exactly!
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
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Joined: Jul 2000
Posts: 3,465
Hard-core CEG'er
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Hard-core CEG'er
Joined: Jul 2000
Posts: 3,465 |
Originally posted by Oeneus:
I would still question the 8tq, but even at 2hp and 2 ft/lb, it is still a worthwhile mod. You don't have to make any sacrifices along the powerband, it is cheap, and it is easy to install. What more can you want?
why do you question the 8tq I gained???? do I need to post the breakdown and graph from my before and after?
2003 Subaru WRX some mods
Even if you don't have the answer, you certainly have to admire the problem.
aka ZetecRacing
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Joined: Mar 2003
Posts: 165
CEG\'er
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CEG\'er
Joined: Mar 2003
Posts: 165 |
If you did, awesome!!!! If a company claims 5-10hp/tq, I expect about 2-4. I know, I am a pessimest. I guess I am pessimistic because the torque gain is so much more that the hp. I guess I am used to seeing the two numbers resemble each other. Why  ? (I'll try to be open minded  )
Contour--It will make a master mechanic out of you!
95 LX MTX Bolt-ons
95 Neon SOHC ATX
77 Dodge Powerwagon-more displacement than my Neon, Contour, and wife's Saturn---combined!
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Joined: Aug 2002
Posts: 1,224
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Aug 2002
Posts: 1,224 |
Originally posted by ITinker:
My problem with the headers is that I don't have specs to work from, and I don't have the know how to build em. I'm not the experienced welder, but my buddy is! As far as udp, it really doesn't give you that much extra hp too much money for too little results. Tweak with timing and injectors. I've been going back and fourth with some professors trying to make this my senior project and get some advice--HA HA HA! I love this forum! I would love any more advice, or references. 
Actually, I meant a full length header like the one at ZXtuner. Except one that would work with our oilpan.
Make a turbo your senior project!!! That would be sooo sweet.
Later,
BP
Ben ---'96 Contour GL * Zetec ATX * Tan on Black steelies---
+++JRSC M62 Under Construction+++
My big-a$$ mod list. 
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Joined: Jun 2000
Posts: 1,469
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Jun 2000
Posts: 1,469 |
Originally posted by LoCoZ2:
....BUT on the road track my powerband is much on par with the SVT. That was before header, TB, UDP.... 
So, you make 50 FWHP more on the road than the dyno?
1999 Amazon Green SVT Contour (#554/2760)
"People demand freedom of speech as a compensation for the freedom of thought which they seldom use."
-Soren Kierkegaard (as posted by Jato)
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Joined: May 2001
Posts: 682
Veteran CEG\'er
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Veteran CEG\'er
Joined: May 2001
Posts: 682 |
Originally posted by Oeneus:
I guess I am pessimistic because the torque gain is so much more that the hp. I guess I am used to seeing the two numbers resemble each other. Why ? (I'll try to be open minded )
Yeah, if the two are different, you usually expect the HP gain to be larger than the torque, because a completely unrestricted engine will have a sloped HP curve where power is proportional to revs, but a typical engine flattens out at the high end. And as the HP curve levels off, the torque curve drops low in that same region. So something that removes a restriction up there can produce a big spike in HP at the top, but the torque curve is only leveled off without raising the peak.
The best explanation of how a pulley could gain 8 torque is that it reduces waste drag from the water pump and power steering pump, and viscous drag in those cases is going to be nonlinearly proportional to engine speed -- it will affect mostly the high end. So this is exactly the sort of situation where one would expect the torque number to be AT BEST equal to the HP number.
So yeah, maybe we should see the dyno plot, or ideally, re-test the same change and see if the numbers are consistent.
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Hard-core CEG'er
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Hard-core CEG'er
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Originally posted by Dan Nixon:
Originally posted by LoCoZ2:
....BUT on the road track my powerband is much on par with the SVT. That was before header, TB, UDP....
So, you make 50 FWHP more on the road than the dyno?
ummmm I take it you were not at spring zing last year... hector was keeping side by side with the SVTs at gingerman... 50 isn't much of a differance considering the large weight differance between an SVT and a Zetec contour.
2003 Subaru WRX some mods
Even if you don't have the answer, you certainly have to admire the problem.
aka ZetecRacing
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Joined: Jun 2003
Posts: 136
CEG\'er
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CEG\'er
Joined: Jun 2003
Posts: 136 |
Quote:
BUT on the road track my powerband is much on par with the SVT. That was before header, TB, UDP....
--------------------------------------------------------------------------------
So, you make 50 FWHP more on the road than the dyno?
Has anyone thought of getting their roms flashed? Now the comp isn't working against what ya put in. The nice thing about flashing is you don't even need a chip.
I think, I tinker, I play around, I build.
'99 Contour
W Ztc, ATX, HID Fog, mesh, A6, B LED, Big 3, Alpine cda-9827, Memphis lvs12 1200w, Alpine 1241, 4xInf K 6x8, Xfire 400/4, 7.2 LCD, glv box "xbox jack" mod, interior horn alarm mod
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Joined: Mar 2002
Posts: 2,094
Hard-core CEG'er
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Hard-core CEG'er
Joined: Mar 2002
Posts: 2,094 |
Originally posted by LoCoZ2:
Originally posted by Kremithefrog:
UDP=2hp and 8ft lbs of torque at the wheels for less than $100 for pulley and belt. yeah that's WAY TOO much for such a SMALL gain. 
Don't hate because you want one. 
I'll be getting one soon.
'95 GL White
I've got mods.
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Joined: Aug 2001
Posts: 17,248
CEG road warrior
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CEG road warrior
Joined: Aug 2001
Posts: 17,248 |
Originally posted by ZetecRacing:
Originally posted by Dan Nixon:
Originally posted by LoCoZ2:
....BUT on the road track my powerband is much on par with the SVT. That was before header, TB, UDP....
So, you make 50 FWHP more on the road than the dyno?
ummmm I take it you were not at spring zing last year... hector was keeping side by side with the SVTs at gingerman... 50 isn't much of a differance considering the large weight differance between an SVT and a Zetec contour.
Thanks Joe. It is also driver/suspension/tires...etc. Now with the header my powerband is ALL mid and high end. Need to run against some SVTs now. 
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
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