what sort of inlet did yum & reyland have?
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as above im pretty sure they were developed for rallyecross where restrictions werent an issue at all, im pretty sure wrc just used the escort or ecciv inlet.
think the mountune roller barrel was purely an NA application aswell for the zetec for the s2000 possibly, but has been adapted with machinine to suit a YB.
think yum used a MIS inlet and martin used a MIS plenum but then adapated it to suit throttle bodies rather than the single one suited to the MIS.
Rog, yes i believe they've been named HART inlets? i think which is basically a mix of MIS and standard cover, as its designed to fit on standard YB inlet runners
think the mountune roller barrel was purely an NA application aswell for the zetec for the s2000 possibly, but has been adapted with machinine to suit a YB.
think yum used a MIS inlet and martin used a MIS plenum but then adapated it to suit throttle bodies rather than the single one suited to the MIS.
Rog, yes i believe they've been named HART inlets? i think which is basically a mix of MIS and standard cover, as its designed to fit on standard YB inlet runners
Last edited by Ryan; 23-03-2010 at 10:33 AM.
#6
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Im sure you are correct there mate, I merely referred to it that was as its a "WRC style" inlet (lots wrc cars now have similar sidefeed mechanisms into the plenum), I wasnt attempting to claim they were actually used on any YB powered car in the WRC as im sure they werent.
Apologies for any confusion caused by my surcomeing to the common naming convention.
Apologies for any confusion caused by my surcomeing to the common naming convention.
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#10
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See MadRod's build thread for an example of what it looks like and how it performs.
Resembles the standard inlet, but with what I am referring to as a "WRC style" tapered feed into the whole length of the plenum (although its actually not one continuous slot IIRC its a dotted line internally)
Resembles the standard inlet, but with what I am referring to as a "WRC style" tapered feed into the whole length of the plenum (although its actually not one continuous slot IIRC its a dotted line internally)
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See MadRod's build thread for an example of what it looks like and how it performs.
Resembles the standard inlet, but with what I am referring to as a "WRC style" tapered feed into the whole length of the plenum (although its actually not one continuous slot IIRC its a dotted line internally)
Resembles the standard inlet, but with what I am referring to as a "WRC style" tapered feed into the whole length of the plenum (although its actually not one continuous slot IIRC its a dotted line internally)
#15
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What plenum covers did they use on the cars with the siamesed inlets then out of interest mate as Ive always ascociated the two developments (the MIS cover and the siamese inlet) as being from a similar time period? although ive never claimed to be any sort of good source of ford trivia so I stand happy to be corrected, lol
Pics would be cool if you have any
Last edited by Chip; 23-03-2010 at 01:07 PM.
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You have nothing to be sorry about mate, I only said I didnt *think* that was the case, WRC cars of that era are way off my radar hence why my post wasnt worded in a way intended to be definitive in the first place, im more than happy to be corrected when i'm unsure on something
#21
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What ECU's did the WRC cars run?
Or maybe the distribution is considered better for the dividided section of the inlet ports in the head?
#26
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Mark had the Hart cleaned up by his head man as its a bit rough as supplied. On the same engine Spec it made 47bhp more than an RS500 plenum which had obviously reached its limits. Certainly the equal of the MIS at these levels in fact i believe it made its Power with lower boost than Daves when on the same Turbo.
#28
Mark had the Hart cleaned up by his head man as its a bit rough as supplied. On the same engine Spec it made 47bhp more than an RS500 plenum which had obviously reached its limits. Certainly the equal of the MIS at these levels in fact i believe it made its Power with lower boost than Daves when on the same Turbo.
I am running a ported head with Siemens and a T38 + a few other bits and I am putting out around 470bhp and boosting to 30psi. The throttle response is much better also.
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as rods pic is a little hard to see the inlet clearly here is a few more pics, as rod said the inside is still rough cast so really needs to be polished up,
cost £460 with reversed throttle linkage, and i paid £50 for a new injector manifold section, so an absolute bargain compared to MIS version
cost £460 with reversed throttle linkage, and i paid £50 for a new injector manifold section, so an absolute bargain compared to MIS version
#35
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I had one of the first batch & paid £500 + £35 for a front pull bracket, think they may be a tad cheaper now, it really is the bargain of the century. My WRC inlet was £180 if i remember correctly so about £700 for an inlet/Plenum that appears to be best of breed. Mark was shocked & have talked to Joe so was he that he seemed to have hit on such a winner.
I also use a 14mm spacer.
I also use a 14mm spacer.
#36
The originals were mag to keep the weight to a sensible level, although I understand that there were some cast in aluminium which had trouble with snapping the lower inlet part of the YB head even, with a vibration damper fitted.
The cost of MIS type manifolds is nearer £2k.
Steve
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...the reason they used the siamese setup in wrc even though they only needed 4 injectors (than ran 8 x greens!) was spray pattern i was told...so i assume they ran all 8 constantly!?
#38
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Originally Posted by Chip
Or maybe the distribution is considered better for the dividided section of the inlet ports in the head?
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