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Soneji
Forum Moderator
Joined: 16 Feb 2004
Posts: 1356
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| Posted:
Mon Apr 19, 2004 2:43 am |
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Yeah I know when doing headwork on lets say a G(ay)TT not to remove much material from the inlet… |
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jimbo
Level 7 User
Joined: 27 Feb 2004
Posts: 243
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Mon Apr 19, 2004 8:20 am |
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so why on N/A yb engines, they had special heads with smaller ports to boost torque, as the standard ports r too big. read about this in ccc a fw yrs ago now.
jimbo |
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JB
Mr Quoter-vator
Joined: 16 Feb 2004
Posts: 7405
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Tue Apr 20, 2004 12:40 am |
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whats a YB engine and whats ccc??? |
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Soneji
Forum Moderator
Joined: 16 Feb 2004
Posts: 1356
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Tue Apr 20, 2004 1:00 am |
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JB
Mr Quoter-vator
Joined: 16 Feb 2004
Posts: 7405
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Tue Apr 20, 2004 2:17 am |
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oh yeah...rings a bell..... |
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Chris H
Forum Moderator
Joined: 02 Mar 2004
Posts: 19978
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Tue Apr 20, 2004 10:24 am |
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YB is the pinto based cosworth engine, as found in the sierra and escort cosworths. Its incorrect to say ford cosworth engine as there are many of those.
Also there are various varients of the YB lumps.
Jimbo i assume you are reffering to the westfield kit car thats running the NA cossie lump with the twin 48's or 50's? It was weird colours? Yeah that had its ports increased.
Also they don't have special heads, they have turbo heads there were no NA heads ever produced, well not by cosworth anyway. Most run larger Paul Ivey valves etc. |
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jimbo
Level 7 User
Joined: 27 Feb 2004
Posts: 243
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Tue Apr 20, 2004 11:47 am |
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yeah i think that was the one. cant rember the name? wilcox maybe. |
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Chris H
Forum Moderator
Joined: 02 Mar 2004
Posts: 19978
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Wed Apr 21, 2004 5:22 am |
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there are a few NA cossie lumps around, they are ideal for NA use.
Large valves, steel crank, 9 bolt flywheel, oversquare etc.
Good engines despite being based on a tranist and american poo car engine.
the pug 1.9 MI16 is equally good, the later 2 litre MI16 is crap though. |
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Soneji
Forum Moderator
Joined: 16 Feb 2004
Posts: 1356
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| Posted:
Thu Apr 22, 2004 12:18 am |
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Yeah all the wee pug 205 owners do the one handed shank over the MI16's... |
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BUTRE
Level 1 User
Joined: 14 Apr 2004
Posts: 29
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Thu Apr 22, 2004 2:17 am |
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Pug 205 1.9 (GTi) Mi16 engined is a must! A friend of mine has got this lump and its damn fast. Scary actually since he has no fear to G-force... airforce academy grinds off him any fear.
This its a must! |
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Soneji
Forum Moderator
Joined: 16 Feb 2004
Posts: 1356
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Thu Apr 22, 2004 2:29 am |
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What is the standard output? |
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jimbo
Level 7 User
Joined: 27 Feb 2004
Posts: 243
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Thu Apr 22, 2004 2:55 am |
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158bhp i think in standard trim. not bad for a 1.9 litre |
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stan
Gay Rights Activist
Joined: 07 Apr 2004
Posts: 1268
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Thu Apr 22, 2004 3:26 am |
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my m8's putting 1 in his 205 GTi........with a GTi6 gearbox!!
should be a little weapon!! |
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Chet T16
Retroholic
Joined: 12 Feb 2004
Posts: 5685
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Thu Apr 22, 2004 3:41 am |
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Up to 164bhp in the 405
Gti6 box is awful, 1.9 gti is the best compromise |
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Ben P
Level 5 User
Joined: 04 May 2004
Posts: 107
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| Posted:
Wed May 05, 2004 8:26 am |
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What size are inlet valves on the F7P?
Is there much point to fitting bigger valves?
N/A is my preferred route of tuning, hopefully with cames, headwork and perhaps twin webers |
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Soneji
Forum Moderator
Joined: 16 Feb 2004
Posts: 1356
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Wed May 05, 2004 9:06 am |
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Larger valves alloy more fuel in and more crap out, therefore more power. |
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jimbo
Level 7 User
Joined: 27 Feb 2004
Posts: 243
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Wed May 05, 2004 9:07 am |
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30mm inlet 28mm exhaust
williams uses 32mm inlets 28mm zorsts
megane F7R uses 33mm inlets 28mm zorst
jimbo |
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JB
Mr Quoter-vator
Joined: 16 Feb 2004
Posts: 7405
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| Posted:
Wed May 05, 2004 12:20 pm |
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i want some 33s.....so if anyones got some lying around...... |
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