Steve Robinson Posted September 19, 2005 Share Posted September 19, 2005 Just a quick regs question. Would a 1.8 with 52mm throttle bodies be legal in class 3 or would I have to fit 48mm? Cheers all Steve Link to comment Share on other sites More sharing options...
david nelson Posted September 19, 2005 Share Posted September 19, 2005 I think you would need a 48 mm TB David Link to comment Share on other sites More sharing options...
GrannY OrB TuneR Posted September 19, 2005 Share Posted September 19, 2005 Steve I think it would depend if it was factory fitted. I beleive the 1800 X-Power K-Series are fitted with 52mm throttle body as standard. If it was fittted as an upgrade then back to a 48mm to be eligible for class 2/3 depending on what tyres you run If you need clarification then drop a note to the competition secretary. Gary GrannY OrB TuneR 😳 Tweaker Of Fine Granny Orbs ! 😳 Superlight No: 170 Link to comment Share on other sites More sharing options...
david nelson Posted September 19, 2005 Share Posted September 19, 2005 Gary I think you are right. David Link to comment Share on other sites More sharing options...
Mark Durrant Posted September 19, 2005 Share Posted September 19, 2005 Steve This will be up for discussion at the Tech Forum. If the car is right, given the cost of a new one,the T/B size is irrelevant provided there is only one Mark D Su77on Se7ens Link to comment Share on other sites More sharing options...
Delbert Posted September 19, 2005 Share Posted September 19, 2005 My '03 1800 140 bhp has the 48 as factory fitted, just as well I read the regs bit earlier today as a 52mm was going to be tried So what We're the Biggest should not be a Foriegn Policy Link to comment Share on other sites More sharing options...
Steve Robinson Posted September 19, 2005 Author Share Posted September 19, 2005 Hmmm, so not sure where this puts the car I'm looking at then. It started life as a 1600 and then had a DVA transplant to 1800, so question of originality is not clear cut. It was bloody quick though Steve Link to comment Share on other sites More sharing options...
david nelson Posted September 20, 2005 Share Posted September 20, 2005 Steve if is fast, i would put the smallist TB on it. Do they make then in 42mm 😬 David Link to comment Share on other sites More sharing options...
Mrs Kipper Posted September 20, 2005 Share Posted September 20, 2005 Steve If there's any doubt then it's a case of 'none of the above' - it's Class 6 for you I'm afraid 😬 😬 Kipper Fun is not a straight line. Link to comment Share on other sites More sharing options...
Steve Robinson Posted September 20, 2005 Author Share Posted September 20, 2005 Kipper 😬 😬 😬 Need to make a decision on buying it in the next couple of days. It is Alan's 47,000 mile superlight, the miles scare me but the condition and amount spent on the new/reconditioning all the oily bits make it like a much younger car. Decisions decisions..... Steve Link to comment Share on other sites More sharing options...
Manxseven Posted September 20, 2005 Share Posted September 20, 2005 Steve, Nice 7, seen it compete at Gurston Down a couple of times, very well looked after. Go 4 it L7 BDA Supersprint Joy here 😬 Link to comment Share on other sites More sharing options...
robmar Posted September 20, 2005 Share Posted September 20, 2005 I have a spare 48mm tb, that i was going to give to mr nelson, but I am sure he would be happy for me to donate to you so you can play in class 3 do you know what else DVA did to it 🤔 rob Link to comment Share on other sites More sharing options...
Mark Durrant Posted September 20, 2005 Share Posted September 20, 2005 Steve I think it is important that you understand what DVA did to the engine. To be eligible for Class 3 it must have the standard plenium (not VVC), 48mm T/B (although this will be discussed at the Tech Forum), MEMS ECU, Supersport Cams, K16 Head with standard valves and no porting. If you want to discuss further drop me a Blatmail or call me on 07784-801566 Mark D Su77on Se7ens Link to comment Share on other sites More sharing options...
Silver 21 Posted September 20, 2005 Share Posted September 20, 2005 Steve I'm with Mark on this one, we let 1800's into 2 & 3 as long as they were standard, ie no mods. I would suspec that if this is a DVA conversion it will be far from standard and therefore ineligble Graham Competition Secretary 2005 Speed Championship - 13 Rounds with 7 counting towards the championship Link to comment Share on other sites More sharing options...
Steve Robinson Posted September 20, 2005 Author Share Posted September 20, 2005 List of the work done is: Engine rebuilt November 2004 as 1.8SS with new crank, bearings, rods, Accralite forged pistons; Piper vernier pulleys, 52mm ali throttle body, new cambelt. Replacement standard head, new gaskets, seals etc. using Supersport camshafts. Alan does still have the 48mm throttle body if I need to revert it back. But keeping the 52 would be great *thumbup* Steve Link to comment Share on other sites More sharing options...
Silver 21 Posted September 20, 2005 Share Posted September 20, 2005 Mark I think this is one for you to decide based on the fact its for next year, I'm not 100% sure what the standard spec is, Graham Competition Secretary 2005 Speed Championship - 13 Rounds with 7 counting towards the championship Link to comment Share on other sites More sharing options...
robmar Posted September 20, 2005 Share Posted September 20, 2005 just my 2p's worth here, as i think it has been discussed before most of the mods that have been described are purely for hopefully better engine life (forged pistons) and not neccersarily for performance improvements - and in that case should be allowed... the only exception being the verniers (and tb which can easily be removed), but I know at least 1 class 3 1800 runer that has run with these this year I believe again just my 2p's worth rob PS BB is your new name teflon shoulders 😬 🤔 Edited by - robmar on 20 Sep 2005 10:50:23 Link to comment Share on other sites More sharing options...
Steve Robinson Posted September 20, 2005 Author Share Posted September 20, 2005 BB - I understand and am keen to stay within the spirit of the rules as well as complying technically with them. Mark - Any chance you can give me a verdict on this as I would like to decide on whether to buy it in the next few days. Feel free to post here or email me offline to steve dot robinson@msd.co.uk . If the answer is that it is class 5 that is no problem, just as long as I know now. Sorry to be pushy on it as I know the technical forum is coming up, its just the most important thing for me is to stay in class 3 for next year. Cheers Steve Link to comment Share on other sites More sharing options...
Area Representative Richard Price Posted September 20, 2005 Area Representative Share Posted September 20, 2005 I'd say it was quite legal apart from the 52mm TB. I don't remember what was said about verniers, but I don't think it's easily policed anyway. My cams are correctly timed, but I didn't do it using verniers. it just took a lot longer to do than it would have using verniers. Stick a 48mm TB on it and it will be legal (in my opinion!) Link to comment Share on other sites More sharing options...
Mark Durrant Posted September 20, 2005 Share Posted September 20, 2005 Steve In my opinion I would say that if a 48mm T/B was fitted and it is using the MEMS ECU then it is legal. Forged pistons do not give any power advantage and therefore are permitted. I do not see the fitting of verniers to be an issue as it optimises cam timing to the manufacturers spec. Some cars may be lucky having standard pulleys that already give correct timing of the cams so therefore I believe that they should be allowed. Also offset dowels could be used to obtain the correct timing of the cams and this would be impossible to detect. Mark D Su77on Se7ens Link to comment Share on other sites More sharing options...
Adrian Williams Posted September 20, 2005 Share Posted September 20, 2005 Time to get your cheque book out Steve 😬 Adrian Link to comment Share on other sites More sharing options...
Steve Robinson Posted September 20, 2005 Author Share Posted September 20, 2005 I have the approval of the good Mrs R to spend the money. My only hesitation is that Matt Stears 1600 superlight is in better condition and doesn't have the starship mileage (but has possibly had proper Caterham re-build after a crash in 02). Downsides are that it is likely to cost at least £1500 more to buy and then would need the DVA headwork to get it up to the level of the 1800. So overall in excess of £2k more simply for lower miles and slightly nicer condition. Overall that makes me think the 1800 is a better option. All opinions welcome though....bear in mind budget is tight. Steve Link to comment Share on other sites More sharing options...
Silver 21 Posted September 20, 2005 Share Posted September 20, 2005 Steve You could always buy Mark D's car, its proven to be fast in the right hands and all it will need is a set of ACB10's, I know what hes asking for it and its not a lot of money. I'm surprised he hasn't suggested it himself 😬 😬 😬 😬 Graham Competition Secretary 2005 Speed Championship - 13 Rounds with 7 counting towards the championship Link to comment Share on other sites More sharing options...
Steve Robinson Posted September 20, 2005 Author Share Posted September 20, 2005 BB - If I even hint to Sally that another car is in the frame she'll throttle me. I've spent the last few weeks sticking pictures under her nose and asking her what she thinks. I think the poor girl has suffered enough Steve Link to comment Share on other sites More sharing options...
Silver 21 Posted September 21, 2005 Share Posted September 21, 2005 Steve You are missing the point, its a proven sprint car for not a lot of money. If I had the cash I would buy it and come and play in Class 3 again. (Mark, I hope the sales commission is still on 😬 😬 😬 😬 😬) Graham Competition Secretary 2005 Speed Championship - 13 Rounds with 7 counting towards the championship Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now