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Done properly and bike bodies are very good, quality of manufacture etc is typically high and they stay in balance well. However.... It's crucial to have them hard mounted to a manifold and not via silicone. Otherwise the balance will drift without question. Suggest researching on Sandy Brown's...

Haha! Yeah this is true, but you'd want those 316deg/13.5mm solid lifter cams from France! Along with the double valve springs, Ti retainers and lifter setup itself to support them, indcidently it is about €3000 for that lot (was pricing up a milder cam (304deg/ 12.8mm) solid setup the other...

Ah right thats lucky then, shame the inlets arn't. I have got a smaller dry cell but it's on the larger side of them, my car is used for all duties so didn't want to risk something too small. Also the boot usually has s**t in it and with the kids getting their school bags in and out the car on...

Yeah AT Power reckon they are like equiv to 48's or something due to having a flat spindle or something like that. Again be interesting to see the results vs. spec for this TDF car in the post as that looks like it's on AT Power. I think a 48mm butterfly on Jenvey is probably about right with...

Now that does look epic! Sort of makes me wish I'd got an R3 airbox, didn't want to move the battery though. Any trouble fitting the PMS manifold to the mk3 head? or do the flanges match?

ignore me, you've a mk3 head - brain fade there :(!!!

Sounds interesting :D! The mk2 has a Jenvey manifold for SF bodies, specs show it can be bored to 46mm at the ITB side, I would need to check what size the taper body ends with, but if it's 51mm mouth, 48mm butterfly - stands to reason it'll be 45mm. So easy peasy mate! Oh and there is also DTH...

Well that's the thing I wasn't planning on spending any money with them hence I didn't especially want to phone or even email really. I just want to know if this same car using 404's went on to make the 240bhp in the video, or if it got further developed to make 240? In hindsight I wish I went...

haha fair enough, I'll drop them a mail first. Just at the planning stage right now, amassing info on tract lengths and tapers, injector and butterfly postioning etc, so it'll probably be winter before and if I start an ITB project. However if there was a proven kit making 240bhp and a half...

Ring RS Tuning then and find out the exact process, I'm just recalling what I remember but I'm not a mapper and nor do I have the tools. But my ECU has now been mapped by 3 different places so it is possible 100%.

This is not the case, I have mentioned earlier that Paul at RS Tuning mapped my car fine despite having a Henk/fastchips dervied map on it first. From what I understand, Paul had to get an unlock key from Henk and then use the original RS Tuner device rather than his own (functionaly the same...

Yeah if I kept my 106 I was considering drilling 4 larger trumpet sized holes on that part of the bulk head to get some air! Not sure if the driver facing inlet makes the 106 on ITB's sound even louder, but it sounded bat s**t crazy anyway :D Regards the mk3 front end, I guess it could form some...

Yeah I suppose that is all the gruppe kit is, fairly small opening and like you say they also have a drain hole. I just had visions of big cut out scuttles like the 106 Maxi's! Well it's something to consider if I go that route one day. Though I was thinking the advantage of the 200 front end...

haha :smiley: ITB's rock! My old car sounded like Chewbacca in a helicopter! Scuttle feed would be nice, probably different mk2 to mk3, but in either case do you reckon it could be done whilst still retaining a modicum of weather sealing or would that promote it well into track/fair weather toy...

Let me know what he says please :) I'm currently thinking of going standalone and apparently ktec will have the gen128 by the end of the summer, so a local gems mapper would be good news... though I'm not holding my breath on it being released!! Other option is the SC Tornado 2 via RS Tuning...

My ECU (Sagem 3000 in the Mk3) was mapped by Engine Dynamics & Henk (aka RS Tuner map). However I took my car to RS Tuning the other week and Paul mapped it fine. I believe however I had to pay extra for the RS Tuner license key so that Paul could remap it, whereas if he had done it first time...

Can you not take Gen90's to anywhere that maps GEMS? Quick Google shows Eurospec are in Guildford map GEMS. I've never used them myself, but I think they have a decent rep in the Jap scene? Certainly a name I've seen crop up alot when I was looking at Jap stuff before.

Yeah it makes what it makes is probably the best way to approach it, especially on these engines. Full credit though for doing the work yourself - I wish I had the skill and confidence as well as space & facilities to try and learn half the stuff needed for engine building. Oh and don't resort...

Hi mate, good to see you have a build thread now, I'll be keeping an eye on this to see how you get on :smile: Btw mines mostly done now, made 215bhp on RS Tuning's rollers, so a mega improvement over the 195bhp I picked it up with lol! I guess that's the gauntlet for you as far as F4R830's on...

Hi guys, I know this is a mega old thread but does anyone recall if TDF ever did stage 2 with this and what power it made? I found this video of the car making 240bhp - however I don't know if that was using the catcam 404's etc as detailed in the first post? I know I could contact TDF but...

Yep, combined with the 6800 on the first run, I wouldn't like to say for sure that the runs were 'tweaked', but I think you'd be wanting to run somewhere else that is a known quantity. No way a standard (I call a cat-back and a remap basically standard) car is making 214bhp. For ref that sort of...

214bhp from a remap and an exhaust, that is way over the top. What was the figure at the wheels? Also why did he only run the car up to 6800rpm on the before run.... smells fishy to me.

Cheers mate, interesting that the vernier's fitted your cams, I was under the impression there was no keyway for them. Trouble is it is not easy to check! No worries on the timing settings, was a long shot! :) I've got a cut up rocker cover here also but that is to allow measuring lift at TDC...

Hi Ben, Would you mind answering a few questions on your 197 engine, I've got a 403 engine too but making very poor power (~205bhp, I also have pistons and an R3 manifold) and you're about the only other person I've found who's used 403's! How much power did you make on 403's? What pulleys did...

Nice, carbon version :) I definitley used some RTV gasket between the bodies and the box when I had one. I can't remember if I used any between the box and trumpets though as it was many years ago. Tbh as long as the seal is there at the bodies thats the most important as the trumpets are inside...

Yeah but I want some 83mm 12.5:1 action now don't I! ;)

Cheers, that rules that out. Must be must be the magnification factor and relative lack of resolution of the scope then. Yeah I think it must be the bits on the edge of cyl1 too then, the pistons had a wipe down to clear down some of the carbon to look at the edges. I think therefore perhaps it...

Oh no sorry Dan I wasn't implying you did, didn't mean it to read that way. Like you said I saw the bore scope. I'm just confused so was wondering if you had a suggestion as to if/how it was possible? Reason I was asking if you had a saved picture was maybe it wasn't as bad as the picture - and...

Hi @Dan@SJM, Got the head off and looking at the pistons, seems they have repaired themselves? I'm pretty sure I watched you with the borescope but could that have been a saved picture on the scope? Unitl the pistons are out wont know if the rings or ring lands are fadged, because compression...

Yeah thats the one, and yes their machining cost is ludicrous! A local firm could do it for a lot less, or diy it mate. Just markup carefully and drill. Hole saw the main holes slightly smaller then buy a flapwheel and ease it out until it's perfect. Bit of rtv sealant and job's a good'un :)