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Always good putting your qualifications to good use.. What did you study?

they havnt deisgned them, thats the problem. They have altered the profile to increase lift, by removing material from the BCD. In doing so they increase accleration of the valve, and so all associated loadings. They are harsh on followers etc, The only real solution is to use cams ground...

yes if they are re-grinds they will stress the valvetrain more than cams which are ground from a full cast or billet.

FYI the gearbox code is etched on the underside of the gearbox, on the flat section next to the selector pin.

£135.00 upon receipt, based on 3-5 people £125.00 upon reciept, based on 5-10 people This includes postage. Price including fitting would be those prices plus £40. Yes I match the lower section to the head. Thats where a high portion of the gain comes from...I dont understand why you...

not got anything pal...

Thats ok, i'll be near Street on the 3rd. a saturday...

you ordered them just before everyone is closing up for xmas. Unfortunately they didnt arrive before I myself, left to see family. can you pm me your mobile number please, I will be in your area as soon as everyone is back in work in a few days, can bring them with me to save delivery times...

Depends how much of a radius you can machine onto the end of the tract. Though given you are fabricating (as opposed to machining) i'm guessing the tract wall thickness and plenum wall thickess arent goign to be great enough radius on there, so I'd use bellmouths.

we ARE working with a velocity though...

I think there would be more of an effect on pulse reflection. I doubt to any significant extent though, as it not a large taper and the "width" in front of the trumpet is minimal compared to the overal width of the plenum. so the variation in profile the pulse is "seeing" is minimal. There isnt...

im not saying it would be definately necessary for optimum results, port/tract volume and length will be the major influencing factors. But the theory at least would favour a taper. How that transpires ont he dyno I cant say. As I say, if i were making one I would include it as the theory...

not tested tbh, the theory makes logical sense to me, so if I was fabricating one as a one of piece, I would include it (taper). Regardless whther there will be a gain or not with a taper compared to parallel profile, there is less chance of a loss... plus its no extra work to include it.

depends on rev range...^^ I personally would include a taper. What sort of overall intake length do you think you will be able to achieve?

in theory tapering slows the air near the entrance, so giving a better distribution. ben have you got any data to show that tapering is not worthwhile?

:) ok youve got a nice TB

Volume wise I'd make it as large as you can physically fit... definately more than 2 litres. Have you thought about throttle plate size?

well then pal, i suggest you jump down from your perch, press "back" a few times on the page numbers and have a re-read, as youre obviously missing a fair bit of info.

well unless the "new" lower section is machined to allow for the extra gasket thickness, then yeah it will cause problems. so you can either come to my workshop and I can fettle the ones you have, or tell me the gasket thickness so I can mill one down to suit.

lol

and for the record, how do you know the other members arent after quality as well as value? Thats not a dig at Jam-sport, im sure their work is great...its a dig at you for assuming price is everything.. Quality costs.

ive given a price, im not going to undercut someone who is willing to do it cheaper than its worth...

well from experience it isnt strong enough for some aftermarket ecus, but it is for OE setup. if its not shielded you will get interference, the rpm numbers will fluctuate rapidly, and it will run like s**t... If the wires are the wrong way round, USUALLY you will get to around 4000 and...

lol...i love how forums work..

Well ive offered my services, only takes a couple of emails to get the ball rolling...

Are you getting any triggering signal at all? I would guess its due to the OE CAS giving a relatively "weak" signal. try moving it closer to the flywheel by elongating the mounting bracket holes.

running on pure pure wvo requires heating to maintain a usable viscosity. That aside, even on older engines this can cause issues with injector pintles, and high pressure pumps due to the oil being heated (whereas fuel usually aids cooling of the pump). including the drop in economy you...

Average velocity may stay the same yes, but effects such as flow seperation and turbulence will be exagerated with increased "boost"/pressure differential, for the same velocity.

yes obviously lol

well it probably will over the next few weeks. Its went from 72 to 60p in the last 2months. 6 months ago it was 47p by me. I suggested red for convenience. By the time youve collected waste cooking oil etc, filtered it, processed to removed glycerine to make it properly usable as a fuel...