Search found 88 matches

by knutspeed
Tue May 20, 2014 5:11 pm
Forum: Motorsport Forum
Topic: Racer eating distributors: rotors and caps?
Replies: 43
Views: 25440

Re: Racer eating distributors: rotors and caps?

Andy: that souns very much like our problem - thanks! Will be investigated tomorrow...
by knutspeed
Mon May 19, 2014 7:21 am
Forum: Motorsport Forum
Topic: Racer eating distributors: rotors and caps?
Replies: 43
Views: 25440

Re: Racer eating distributors: rotors and caps?

One other small detail to consider is the timing chain cover GASKET thickness. The OEM gasket is 'paper-thin' for good reason. you don't want a thick card gasket covered with silicon on both sides because the distributor hole will be offset. . We could see that three of the points inside the cap we...
by knutspeed
Mon May 19, 2014 6:29 am
Forum: Motorsport Forum
Topic: Racer eating distributors: rotors and caps?
Replies: 43
Views: 25440

Re: Racer eating distributors: rotors and caps?

Keeping all options open here while dad (Doc) gets his hands dirty. Cap: It doesn't sit firmly in place when clipped on. You can wiggle it a fair bit by hand. Mismatch: not impossible: but why does the complete unit have no issues on one car for several races - no marks, and last 4 laps on the other...
by knutspeed
Wed May 14, 2014 3:12 pm
Forum: Motorsport Forum
Topic: Mk3 vs Mk2 - differences? more FIA HTP...
Replies: 11
Views: 5766

Re: Mk3 vs Mk2 - differences? more FIA HTP...

I think it's a 1040cc. FIA Class limit is 1150.
Then again, there are optimistic dynos... it certainly goes well, but quite a bit off a mini in a drag race. 100kg less, 20 hp more, and a fair bit more torque as well.
by knutspeed
Wed May 14, 2014 1:12 pm
Forum: Motorsport Forum
Topic: Mk3 vs Mk2 - differences? more FIA HTP...
Replies: 11
Views: 5766

Re: Mk3 vs Mk2 - differences? more FIA HTP...

Image

I know racing the Imps on the Dunlop Spec tire is fun, but you should really try wide boots just once....it feels like a single seater :D
by knutspeed
Wed May 14, 2014 12:53 pm
Forum: Motorsport Forum
Topic: Mk3 vs Mk2 - differences? more FIA HTP...
Replies: 11
Views: 5766

Re: Mk3 vs Mk2 - differences? more FIA HTP...

Simon, yes we're running twin 40s. The engine in my car gave a healthy 117hp on the dyno, so happy with the performance. We're actually running in a FIA class up to 1150cc, so there's options there as well. The Imp has already got the pace of the 1300 class, and had the fastest lap times last weeken...
by knutspeed
Wed May 14, 2014 7:11 am
Forum: Motorsport Forum
Topic: Mk3 vs Mk2 - differences? more FIA HTP...
Replies: 11
Views: 5766

Re: Mk3 vs Mk2 - differences? more FIA HTP...

A little update - the "wrong" homologation papers state 716, but the HTP actually specifies 698 for our MK3. Still 30kgs that I don't need, but slightly better. No big worries - the HTP now needs a renewal every 5 years (to the price of £500 and quite a bit of work & follow-up), so we might wait unt...
by knutspeed
Tue May 13, 2014 10:13 am
Forum: Motorsport Forum
Topic: Racer eating distributors: rotors and caps?
Replies: 43
Views: 25440

Re: Racer eating distributors: rotors and caps?

We've tried several different rotor arms, but by far the most reliable has been Swiftune's variant: http://www.swiftune.com/Product/669/rotor-arms.aspx (the long one in the picture)
by knutspeed
Mon May 12, 2014 1:05 pm
Forum: Motorsport Forum
Topic: Racer eating distributors: rotors and caps?
Replies: 43
Views: 25440

Re: Racer eating distributors: rotors and caps?

That's exactly what we did for race #2, and it broke after 3 laps, so yes, we'll dig in and see what we find in the engine itself.
by knutspeed
Mon May 12, 2014 12:43 pm
Forum: Motorsport Forum
Topic: Racer eating distributors: rotors and caps?
Replies: 43
Views: 25440

Re: Racer eating distributors: rotors and caps?

Very possible (Chinaware perhaps) - but this still doesn't explain why there was no problems on one car revving more than the one that keeps breaking them?
by knutspeed
Mon May 12, 2014 12:29 pm
Forum: Motorsport Forum
Topic: Racer eating distributors: rotors and caps?
Replies: 43
Views: 25440

Re: Racer eating distributors: rotors and caps?

the play in the bearings/shaft is more or less as it was. No noticeable difference. We could fit a new rotor, and the car would run again for X laps before a new one snapped. Last year we even managed to snap one in the pits while tuning the carbs - but a new dizzy since then. I've been driving with...
by knutspeed
Mon May 12, 2014 12:25 pm
Forum: Motorsport Forum
Topic: Racer eating distributors: rotors and caps?
Replies: 43
Views: 25440

Re: Racer eating distributors: rotors and caps?

Thanks, yeah we looked at that - but since we've tried 3 different new distributors we are scratching our heads. I think it has the bronze gears - will have to check with Doc. The drive gears (missing dictionary here...) are fitted in the block? That was our next step - to see if anything there coul...
by knutspeed
Mon May 12, 2014 12:08 pm
Forum: Motorsport Forum
Topic: Mk3 vs Mk2 - differences? more FIA HTP...
Replies: 11
Views: 5766

Re: Mk3 vs Mk2 - differences? more FIA HTP...

Thanks, Simon. Door locks no problem, and it's already fitted with a Mk2 dash with Rallye Pod. The FIA weights are ex-driver. I was quite surprised when we first checked weights when they were built. With plastic windows, boot, bonnet and no bumpers both cars were about 630 less petrol. So we had to...
by knutspeed
Mon May 12, 2014 9:02 am
Forum: Motorsport Forum
Topic: Racer eating distributors: rotors and caps?
Replies: 43
Views: 25440

Racer eating distributors: rotors and caps?

Another feature on the Bevan tribute car: it eats rotors/distributor caps. This all started after we had a new engine built. It was fitted with a brand new race-dizzy, but quickly started snapping rotors. It seemed like the rotor would dig into the cap until it broke, and this would happen after a l...
by knutspeed
Mon May 12, 2014 8:51 am
Forum: Motorsport Forum
Topic: Mk3 vs Mk2 - differences? more FIA HTP...
Replies: 11
Views: 5766

Mk3 vs Mk2 - differences? more FIA HTP...

We've got a heavyweight challenge... Our Bevan tribute car has a FIA HTP as a Mk3 Imp Sport. Unfortunately, this requires it to weigh in at 716kg, whereas a MK2 Super or Singer may run at 668kg. We've stuffed the car with heavy, useless items to get it to the weight limit, but it's not much fun sinc...
by knutspeed
Fri Jul 12, 2013 11:19 am
Forum: Motorsport Forum
Topic: Scandinavian Imps at Velodromloppet (video)
Replies: 11
Views: 6689

Re: Scandinavian Imps at Velodromloppet (video)

Gert - August is at Rudskogen, Våler in September. If our cars are ok we're aiming at racing at Knutstorp with HMS. Doc will be at Goodwood during the last Våler race :( Anyway, the races should be Saturday/Sunday, with optional free practice on Friday. I haven't raced at the new Rudskogen layout ye...
by knutspeed
Thu Jul 11, 2013 12:47 pm
Forum: Motorsport Forum
Topic: Scandinavian Imps at Velodromloppet (video)
Replies: 11
Views: 6689

Re: Scandinavian Imps at Velodromloppet (video)

Great Videos Gert! Was fun to meet up, hopefully we won't need to work so much on our cars next time and have time for a beer or two :) I think my shorter Final Drive and hence better accel really pays off at this track. It certainly did when I raced Minis there, found 2 seconds instantly even thoug...
by knutspeed
Tue Jun 18, 2013 11:57 am
Forum: Motorsport Forum
Topic: Scandinavian Imps at Velodromloppet (video)
Replies: 11
Views: 6689

Scandinavian Imps at Velodromloppet (video)

There were 4 of us at Velodromloppet this year. Velodromloppet is at the legendary Karlskoga/Gelleråsen track which has hosted races since the stone age. My dad met all his heroes there when they used to test F2/f3 cars around the neighbouring farms. Great tales of Jack Brabham et al...aaaanyway. Th...
by knutspeed
Thu May 23, 2013 3:31 pm
Forum: Motorsport Forum
Topic: Good Imp Racing news from Norway! (video)
Replies: 22
Views: 13204

Re: Good Imp Racing news from Norway! (video)

Sounds a good idea, thanks! Will have to check if it's allowed in app K, or maybe somebody knows?
by knutspeed
Thu May 23, 2013 2:03 pm
Forum: Motorsport Forum
Topic: Good Imp Racing news from Norway! (video)
Replies: 22
Views: 13204

Re: Good Imp Racing news from Norway! (video)

Theres also video from a Norwegian sports channel covering the races with good shots of both Imps (norwegian commentary, but good video). http://vimeo.com/66625469 (go to about 10 mins into the film to bypass the rather ugly locosts). Rally champ and legend Stig Blomqvist ran a Ford Galaxie, and of ...
by knutspeed
Thu May 23, 2013 1:59 pm
Forum: Motorsport Forum
Topic: Good Imp Racing news from Norway! (video)
Replies: 22
Views: 13204

Re: Good Imp Racing news from Norway! (video)

We had a look at the rear, and everything seems ok. Fredrik has fitted Bevan-style helper springs with shims, we'll see what that does. The car sat very low at the rear on the Yokohamas, might be that the R/F weight distr. was offset even worse which amplified the one-wheeling. Previous springs were...
by knutspeed
Thu May 16, 2013 12:10 pm
Forum: Motorsport Forum
Topic: Rear spring rates and shock absorbers
Replies: 2
Views: 2226

Re: Rear spring rates and shock absorbers

Thanks Simon! Our other car is running proflex dampers which seem to work better. Time to go shopping!
by knutspeed
Thu May 16, 2013 6:48 am
Forum: Motorsport Forum
Topic: Rear spring rates and shock absorbers
Replies: 2
Views: 2226

Rear spring rates and shock absorbers

Does anybody have info on what was used on the special saloon Imps way back when, or indeed if somebody are running slick-shod cars today? I know the Maguire cars were far lighter than the GP2 cars, but what about the Rawlson cars? What makes my head spin is that we're running two identical cars, id...
by knutspeed
Wed May 15, 2013 12:04 pm
Forum: Motorsport Forum
Topic: Good Imp Racing news from Norway! (video)
Replies: 22
Views: 13204

Re: Good Imp Racing news from Norway! (video)

Trouble is - here I'm running Yokohamas, but I would have been running the much wider Avon ACB10s if I had the clearance...we run those on the other car no problems, and the grip is fantastic. Period G (71) - no chance to run the (fun) Dunlops - i'd be way off the pace. The Yokos didn't feel that gr...
by knutspeed
Wed May 15, 2013 11:44 am
Forum: Motorsport Forum
Topic: Good Imp Racing news from Norway! (video)
Replies: 22
Views: 13204

Re: Good Imp Racing news from Norway! (video)

Anything stiffer than 800lbs rear springs available?!
Image
by knutspeed
Wed May 15, 2013 6:43 am
Forum: Motorsport Forum
Topic: Competition silencers?
Replies: 10
Views: 5955

Re: Competition silencers?

The scrutineering rev limiter is strong in our cars :)
by knutspeed
Tue May 14, 2013 12:54 pm
Forum: Motorsport Forum
Topic: Competition silencers?
Replies: 10
Views: 5955

Re: Competition silencers?

Thanks Simon!
Our current setup is one or two dB plus/minus 100 which usually is ok in Norway, but the Swedes are stricter, and we need to get to 95 at 50 cm, 45 deg angle.

Very helpful forum, got lots of good tips I'll try out!
by knutspeed
Tue May 14, 2013 10:30 am
Forum: Motorsport Forum
Topic: Competition silencers?
Replies: 10
Views: 5955

Re: Competition silencers?

Hi Mike & thanks! Yes, the outlet points straight out the back. It does stick out a bit too far as well. They used to do tests in scrutineering with half max revs, 50cm away from the outlet, 45 deg angle. This year they're trying trackside measuring in Norway which seems much more reasonable. The Im...
by knutspeed
Tue May 14, 2013 8:11 am
Forum: Motorsport Forum
Topic: Competition silencers?
Replies: 10
Views: 5955

Competition silencers?

We're running quite simpler (non-across-the-bum) silencers on our race Imps, think they're made for Caterhams or something. Anyway, they are borderline too noisy for Sweden which run 95dB compared to 100 in Norway. I hate the looks of the across-versions, but we may have to go there anyway. Anyone k...
by knutspeed
Tue May 14, 2013 6:22 am
Forum: Motorsport Forum
Topic: Good Imp Racing news from Norway! (video)
Replies: 22
Views: 13204

Re: Good Imp news from Norway

Thanks for the positive feedback!

Managed to hack some video from this weekend, both cars, various camera angles. The blue car sounds like a mini-DFV when off the throttle!

https://www.youtube.com/watch?v=_KTCL9qeEu4
by knutspeed
Mon May 13, 2013 7:30 am
Forum: Motorsport Forum
Topic: Good Imp Racing news from Norway! (video)
Replies: 22
Views: 13204

Re: Good Imp news from Norway

Image

The camp & cars. Hoping for some action shots in a few days.
by knutspeed
Mon May 13, 2013 7:16 am
Forum: Motorsport Forum
Topic: Good Imp Racing news from Norway! (video)
Replies: 22
Views: 13204

Good Imp Racing news from Norway! (video)

It's been a long time coming, but yesterday we finally managed to get both Imps to the finish! In style as well, as we netted 3rd overall, 1 class win (1300cc pre 71 FIA) and 1 class 4th. 20+ cars in the race, finally got to give the Minis a good fight! Saturdays races were looking good until the la...
by knutspeed
Wed Aug 22, 2012 6:48 am
Forum: Motorsport Forum
Topic: Race springs
Replies: 5
Views: 3188

Re: Race springs

Neil, both the springs and shocks are available from UK motorsport outlets as Simon points out. Our other car runs Spax at the rear, and they also work well. Our challenge compared to the UK racers are the wide tires allowed in the FIA Period G (71-spec). They have got so much grip I might want to t...
by knutspeed
Tue Aug 21, 2012 8:02 pm
Forum: Motorsport Forum
Topic: Race springs
Replies: 5
Views: 3188

Race springs

Hey all, We've got Doc's car running quite nicely now running fat ACB10 Avons (FIA 1971 Imp). I tried it in the dry for the first time last sunday - lovely balance, grips like a Scalextric car compared to the Yokohamas. And it was so much more fun to drive than the Bevan replica I'm racing...must be...
by knutspeed
Sun Jun 17, 2012 3:13 pm
Forum: Motorsport Forum
Topic: Imp race engines - dyno setup in the UK?
Replies: 4
Views: 3428

Re: Imp race engines - dyno setup in the UK?

Thanks, yes I'm an avid follower of his on YouTube - very entertaining! I'll get in touch with him.
We'd prefer a dyno to the rollers as we'll have the engines over in the UK, but not the cars.
by knutspeed
Sat Jun 16, 2012 7:44 pm
Forum: Motorsport Forum
Topic: Imp race engines - dyno setup in the UK?
Replies: 4
Views: 3428

Imp race engines - dyno setup in the UK?

Can anyone recommend somebody with guru-skills at setting up Imp racing engines on a dyno in the UK?
by knutspeed
Wed May 16, 2012 4:24 pm
Forum: Motorsport Forum
Topic: HSCC / HRSR 2012
Replies: 160
Views: 80000

Re: HSCC / HRSR 2012

Can't be that high compared to Norway :D besides, I'd love to race the famous tracks I've walked! Yes, we'll look into more races in Sweden as well.
by knutspeed
Wed May 16, 2012 8:41 am
Forum: Motorsport Forum
Topic: HSCC / HRSR 2012
Replies: 160
Views: 80000

Re: HSCC / HRSR 2012

Guys, would it be possible for us to bring our Period G ('71) cars over from Norway for races? If we swapped for the same tires you use? They are FIA cars, HTP, and probably a lot slower with less trick bits and more tempered engines. Only issue would be that we run wide arches. We'd love to meet up...
by knutspeed
Tue May 15, 2012 7:38 pm
Forum: Motorsport Forum
Topic: Clutch release
Replies: 19
Views: 24013

Re: Clutch release

Seems to be a requirement for these cars - they do have souls! Besides, I'm quite certain that "pumpkin 2" is female :wink: