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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 |
Well since there are only THREE to choose from, it shouldn't be too difficult to get in touch with the companies and find out the info you are looking for. Chris from CTA Motorsports has been more than helpful to me in the past. As Hector said, it can be expensive to dyno after each mod that you do--it adds up to $80 to the cost of the mod.
AFAIK, people have the CTA or the KKM. Several people have said the CTA is better than the KKM. I don't know of anyone that has the OBX.
'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 LocoChick'95:
Well since there are only THREE to choose from, it shouldn't be too difficult to get in touch with the companies and find out the info you are looking for. Chris from CTA Motorsports has been more than helpful to me in the past. As Hector said, it can be expensive to dyno after each mod that you do--it adds up to $80 to the cost of the mod.
AFAIK, people have the CTA or the KKM. Several people have said the CTA is better than the KKM. I don't know of anyone that has the OBX.
I have had both. CTA is better, hands down. 
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: Mar 2003
Posts: 49
New CEG\'er
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OP
New CEG\'er
Joined: Mar 2003
Posts: 49 |
As y'all kmow, I am a newbie, so sorry if my line of reasoning in twisted. Anyway, upon noticing that the cone air filter (such as KKM's) connect to the MAF, I was wondering on tube intakes such as OBX or CTA, if I were to remove the MAF, would it be street leagal? Thanks and sorry for any ADDITIONAL stupidity 
96 GL-Sport 2.0L, MTX
Bernardo Bourges' CTA CAI,
Dmitri's SVT E0s rims, 205/55R-16, Dunlop SPs.
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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 |
car will not run without a MAF.
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: May 2002
Posts: 21,653
I have no life
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I have no life
Joined: May 2002
Posts: 21,653 |
MAF measures air in the going into the intake, you need it. just buy a CTA intake, it's good. or wait for one of these supposed true cold air intakes to come out.
98.5 SVT
91 Escort GT (almost sold)
96 ATX Zetec (i brake to watch you swerve)
FS: SVT rear sway bar
WTB: Very cheap beater
CEG Dragon Run - October 13-15
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Joined: Dec 2001
Posts: 49
New CEG\'er
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New CEG\'er
Joined: Dec 2001
Posts: 49 |
Originally posted by ContourZetec:
VCT doesn't give you HP it is strictly an EMISSION CONTROL unit.
This is not entirely correct. The VCT enables Ford to use longer duration cams, still meet emissions requirments and provide a stable idle.
(ZX2 with VCT) Intake: 214 deg @0.050, 0.367" lift Exhaust: 211-2 deg @0.050, 0.338" lift
(Focus w/o VCT) Intake: 206 deg @0.050, 0.353: lift Exhaust: 205 deg @0.050, 0.343" lift
The exhaust VCT advances the exhaust cam 30 crank deg under PCM control. Advancing the exhaust cam reduces the intake-exhaust overlap by the same amount. At low rpm this results in a better idle and more torque using longer duration cams. The European tuners have learned how to use VCT to their advantage with longer duration cams.
In the Focus engine, Ford used a better intake and exhaust manifold and better flowing cat to compensate for the shorter duration cams while meeting emissions.
For a high rpm race engine that does not have to meet emissions or streetabilty requirements you are correct. VCT does not provide any performance benefits.
However, if you need to meet emissions and want a stable idle, then VCT does allow the use of higher performance cams. People have reported passing emissions tests using cams with durations greater than 220 deg and lifts above 0.390, if the VCT and catalyst were operating.
Having VCT on both intake and exhaust cams (similar to the BMW dual VANOS system) would be ideal, but we have to make do with what we have.
People have talked about a adding a centrifugal mechanism to retard the intake cam with increasing rpm (similar to what Mercedes did on the twin cam 6 over 30 years ago) in conjuction with the exhaust VCT. Due to the complexity no one has acted on this idea. It might be possible to add a centrifugal mechanism to an adjustable cam gear.
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