dean101287
Member
Registered: 22nd Jul 07
Location: Cardiff
User status: Offline
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thinking of buying the above- anybody got one of anybody know what they are like, any info would be greatly appreciated, cheers
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Not good tbh.
Raspy. Lambda position only on one branch.
And a bad collector design according to Dave A.
Better than standard tho.
[Edited on 04-09-2007 by Vaux Lad]
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dean101287
Member
Registered: 22nd Jul 07
Location: Cardiff
User status: Offline
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what are the best ones about without spending a fortune.
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Janspeed 4-2-1
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dean101287
Member
Registered: 22nd Jul 07
Location: Cardiff
User status: Offline
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okey dokey- will get 1 then- cheers
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Adam_B
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Registered: 13th Dec 00
Location: Lancashire
User status: Offline
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pro tech are a bunch of cocks
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
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Protech manifolds for these engines are good for the money. although they are let down by the collector design.
on a plus note, my engine made 192bhp today on the rollers with a protech manifold, I have modified the collector to suit my exhaust system though. infact there was very little difference on the bhp graphs between the protech one and the SBD one, just better lower down torque on the SBD one but the protech one does rev more freely at high RPM and has gained me a few BHP.
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gsirick
Member
Registered: 18th Feb 07
Location: mid-wales
User status: Offline
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quote:
Originally posted by Dave A
Protech manifolds for these engines are good for the money. although they are let down by the collector design.
on a plus note, my engine made 192bhp today on the rollers with a protech manifold, I have modified the collector to suit my exhaust system though. infact there was very little difference on the bhp graphs between the protech one and the SBD one, just better lower down torque on the SBD one but the protech one does rev more freely at high RPM and has gained me a few BHP.
ive got a protech on my gsi which has been modified to suit the exhaust system, did you have the o2 sensor moved so its reading all 4 cylinders and not just 1?
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