@@MC-Racing 1000cc

@@reallybigkidd thanks. chain knocked a hole in my 750 K7 race bike. i have fixed it, but interesting if i could get new bottom casings from a GSXS

@@MC-Racingit’s quite possible that you can, I started playing around with the gsxs 1000 ideas 4-5 years ago, I’ve only managed to kill one so far and that was due to a failed electrical water pump on the white single seater. All the usable bits that have been left will fit the spare GSXR engine I have and the gsxs/r hybrid that I’ve been using in one car for 4 years so they are handy if I break gearboxes etc.

@@reallybigkidd Sweet, i will keep that in mind if i need to replace something. for now its patched up with an aluminium plate and epoxy :-) the spot in front of the chain don't seem very stressed anyway. ill see if it holds up :-) godspeed 👍

@@podd372 it wasn’t too bad to be honest, few people did get a little lost over the weekend though. They are working on ways to make things a bit more easy to follow. There were drivers with track maps taped to the dashboards.

@@fuzzyspeedo3652 thank you. I don’t off the top of my head, Jedi actually do a couple of different wheelbases our yellow mk4 is a short wheel base car for some reason 82” comes to mind, we also now have a mk4/6 long wheelbase which is 4” longer. The yellow car is in the workshop garage at the moment and the green car is up at home but can measure both and will post on here.

@@reallybigkidd Thanks Ben :)

@@fuzzyspeedo3652 our mk6 long wheelbase is 84” so the yellow mk4 short wheelbase would be 80”

@@reallybigkidd Thank you

Oh yes I’ve had several discussions with a chap who has tried the 2 stroke route but gone back to 4 stroke as they couldn’t get it to consistently operate without blowing drive chains. Think they had problems trying to fit it with a gearbox, rather than use cvt. The cost to convert the chassis along with the engine cost itself is what puts me off. With the Suzuki engines I can put another one in cheap enough and with the gsxs being what is a remake of the 2005-2008 GSXR just detuned and what was once a more difficult engine to acquire has gained new life with this new model. 2 strokes have a good number of benefits but the trouble I’ve seen people have had with trying to fit them into the back of cars it really doesn’t seem worth it personally for me. It would also make the car almost impossible for us to sell if we did want to move it on (certainly in the uk). The Jedi chassis is a great mechanically grip design but it is not an aero dynamically designed chassis so putting a 2 stroke in a design from 1984 would be wasting the 2 strokes benefit. The current setup we have with the chassis is that a circuit racer could quite easily drop a dry sumped GSXR engine in refit the other circuit parts that we have and go racing in monoposto or f1000. If we modify it for the snowmobile engine it would have to go back to Jedi for what would almost be a new chassis.

@@reallybigkidd mod the rear a few inches to fit a 1300cc Busa yourself , grinder welder , very average skills necessary...its not even my car and i'm not happy with 225hp 😂 cant watch without thinking of ways to reduce mass and raise hp..can it survive on meth ? Ive seen a meth busa dirt hill climb.. how has wallice mingas got 800hp in what looks like a very similar car to this ?

@@TheCraigy83 yes we could do that but it seriously devalues the car for the sales market if you start cutting the chassis, yeah we can put a busa in the back but that does change the class we would run in, it puts us in the over 1100cc class and into the 1600cc class where budgets are going up. On average we spend £3500-4000 a year on entry fees, fuel, repairs, licences, tyres, memberships and travelling costs that’s everything. That is in a car that we bought 7 years ago for £6000 second hand but which has now more than doubled in price it was at the time just over 21 years old (now 28). With that budget we are still able to keep things relatively competitive. To go next 1600cc class up and be British championship competitive you are looking at minimum 20k on an engine if you are going new, 15k second hand, a new modern aero chassis starts at 20k without all the aero extras as a roller and that’s the most affordable one for us that’s not affordable with the finances we have. Plus there is all the extra costs that go with damage on a modern car as a lot are designed specifically for hillclimbs the repairs can be massively costly. The Jedi being a circuit car as well as a hillclimb car means there was enough made and it keeps repairs cheap because the circuit guys tend to have more off track visits. Yes we can run methanol, I’ve got the gear to run methanol now so it will be all part of the development for 2025. Wallace’s Gould is a much bigger car than ours with a much more modern 25+ years newer aerodynamic chassis and runs a 2750cc Cosworth Xd indycar engine with turbos removed. It’s been stroked and bored out to 3300cc.

@@reallybigkidd i didnt think about class limits , i assume there's a minimum weight limit aswel , you probably cant start swapping everything for titanium + carbon where its currently steel? Basically the upgrade potential is you losing a stone /14lb , win some of that jawline back 😂 , whats meth worth in a 1000cc gsxr ? 35 - 40hp? using a petrol mix so you can see flames ? Since your runs are so short could you vent a pure oxygen 1lire bottle directly at your air/in your air box ? Fit a mini hose inside your k&n right up to the inlet ports? would your ecu allow it or go on strike ? You can ride a 2stroke with no petrol reaching down spraying deodorant straight into the carb inlet 😂, i've never tried pure oxygen probably get more hp/blow up /set my arm on fire 😂.

@@TheCraigy83 yes there is a rule book which we have to follow and capacity splits, it’s not anything goes. There isn’t a weight limit but we are around the same weight as some of the modern cars around 300kgs. Someone has gone down the titanium and carbon route at great expense, probably best part of £65000 without an engine. Yeah that’s the plan is to get some more weight off of myself, very difficult at the moment due to ongoing medical issues restricting what I can do but 2 stone is about what I’m looking at once health is returned. You’re a bit off with meth it’s only around 10% gain in power so maybe 20hp if you’re lucky. Again rules dictate what you can and can’t do, so for fuel it’s pure meth or petrol up to 102 octane that’s it no additional things are to be mixed, not even allowed to use octane booster for petrol.

The plan is to do replacement pistons, rings and possibly cams as I have 2 sets of Kent race cams now. The Jedi engine is mainly getting a refresh and gearbox change to the old ratios as the ones ran in 23 just didn’t quite suit the car. There are plans for the Oms when it comes back from having the exhaust repaired and bodywork repainted. I’ve got a Mike Smith race head with race cams and methanol injectors to get a bit more grunt out of it. Just picked up another gsxs engine to build a supercharged 1000 on methanol for 2025.

Yes it’s a great little circuit, the track record is held by a single seater at 68.35 my best is 68.65 in the yellow car. Rally class record is 74.78

Cheers. With fuel, water and no driver this car weighs in at 300kgs, the engine when healthy it was producing around 205hp at the crank. It’s a bit less than that due to wear on the engine. I’ve got a winter rebuild planned for the engine to push it back to the 200+ mark. It does like to change direction quite quickly, its setup for more tight twisty hillclimbs than sprints but works well at the smaller sprint venues like Curborough.

@@reallybigkidd That's really lite , i'm power to weight obsessive, what engine is it ?

@@reallybigkidd you need better brakes , it barely peaked over 1G but you held 2.8G coming out the corner onto the straight, you wanna be seeing +3G when you brake hard .

@@TheCraigy83 Suzuki GSXR 1000cc with a few mods internally

@@TheCraigy83 we run a circuit brake pad which is quite hard it doesn’t heat up too quickly, once they are warm it’s like hitting a brick wall, it’s also only got small 2 pot calipers on it all round so not quite the stopping power. I’ve got softer brake pads on another car and forever locking wheels. Usually I am later and harder on the brakes on the earlier runs I was 10mph higher according to the speed trap in the braking zone so was leaving it a good bit later and carrying more speed so I left a chunk of time there all good news for our next visit as I can work on those areas.

Best way to the finish good lump of right boot 😁

Thank you

One of the big advantages of the motorbike gearbox it’s so close together, the new engine that is in the car now sounds like the engine note never changes in 4/5/6 you just hear the blips from the flatshift in the revs when I pull for the next gear. We run it so low on the sprockets you launch in 2nd gear as first is a bit like a crawler gear just too low.

@@reallybigkidd It sounds awesome i watched about 3times😂...does it mind being made to rev faster then a factory gsxr1000 would? Probably heat up quicker with the extra load of the weight vs bike weight , sounds like there's zero resistance just smashes up the revs effortless.. Just slightly annoying doing Flintstones feet for reverse gear 😂 , im using same tech for my reverse..

@@reallybigkidd wait how do you reverse !? My set has open floor but yours is sealed ?

Thank you

We run a very snug race seat in the car which came out of an old formula Ford which I modified to fit the Jedi chassis. We don’t get any movement at all around the hips. There is a small amount of very thin padding which we sit on to take out the harshness of some of the bumps at venues but not too much to remove the feeling of what the car is doing beneath me.

@@reallybigkidd Do you build the chassis yourselves ? I'll be testing an experimental power plant in the near future & having to build it a chassis like your car but sub 200kg😬...its not for racing just proof of concept / something to show the masses so it doesn't need to be race strong 👍

@@TheCraigy83 the chassis is 27 years old this year. The car came from the manufacturer Jedi Racing Cars and was a works car fitted originally with a 2 stroke motor. We’ve got it down to 300kgs still using a good amount of the original parts, we could drop the weight off a bit more by swapping all the panels with carbon fibre and change the steel dampers with much lighter aluminium ones. I’ve had the car down to bare chassis a couple of times when we’ve had to refresh and have modifications done when swapping from the Honda CBR to the Suzuki. 200kgs Is mega light, that should fly. Very interested in the new power plant you will be using.

@@TheCraigy83 I did a video a couple of years ago on the car, there are a few more updates since and I need to do a new one really kzbin.info/www/bejne/npnNm5ljjMShgdk

@@reallybigkidd in the 90's i had a ktm sx 125 2stroke and a 250 rm , best power delivery sound smell..

Hello, I’ve done a video on the car, it’s a few years old now and needs an updated version doing. kzbin.info/www/bejne/npnNm5ljjMShgdk the car itself is a Jedi Racing Car. Jedi as a manufacturer are still around and have a circuit racing series called f1000uk.

Thank you, hopefully next year even faster with more power and a new set of tyres. Plenty of winter updates planned.

Hi, to answer your question because we do short runs in the car 20-90 seconds by not having it energised when the engine is fired up and run it doesn’t cause a drag load by trying to recharge the battery (freewheels). It doesn’t create a big drag but in short runs in hillclimbing you try to minimise potential loses. To be fair it probably doesn’t make a big difference certainly not noticeable. We still have the alternator fitted as the car is double driven so on the return run we can flick it back on and put some power back into the battery.

Oh and is it semi automatic?

Thanks, the gearbox is still the original gsxs 1000 motorbike gearbox. It is sequential so push to go down the gearbox and pull the gearstick to go up. We have a flatshift fitted which allows me to keep my foot on the throttle and pull the gearstick and it cuts the spark briefly and allows the engine to shift without the clutch going up.

what are these karts called?

@@m0tionblur48 Jedi Racing Cars

Yes we still run if it’s wet, normally the event will go ahead up until it becomes no longer safe to drive. We run a set of Avon slicks cut as wets, not as good as a dedicated wet tyre but does work really well in the heavier rain events

The gsxs engine is not a bad bet really, you will want the later 2017 onwards really as that is a lot closer to the GSXR internally. There was mods made on the later block which the 2015-2016 didn’t have. We’ve had good power in the end at 180hp and that’s still with standard off the shelf Suzuki parts. I plan on changing a few bits for next year and wind the power up.

Hi Mark, the plan is to do one hopefully shortly, we are coming to the end of the season. There have been a few additions to the car since this video and the plan is further development over the winter, engine performance and aerodynamically. I have ideas it’s just working on the budget.

Back when we built the car the MSUK rules were that we couldn’t use a beam axle or coil overs, the car is still running rubber cones, they are a bit hard and maybe could have fitted softer ones but the dampers have been softened off but it’s still really stiff on the back. The rules have since changed, it is one thing we will probably do now as it’s also a large weight saving to convert the rear end from full subframe.

The original rear diff came out of a classic mini mounted to a back plate to which you could fit a chain ring and then an oil bell fitted over the top to keep it lubricated. The common fit now for the Jedi racing cars and bike engined single seaters that is chain drive is the qdf7zr quaife atb which is grease filled but for us it would have meant that we would have had to change the back of the chassis to accommodate it along with new driveshafts and outputs.

Thanks John, had a great time at Clay, fantastic event put on by Torbay Motor Club

Thank you we had a great run that year, the little car goes well, this year I managed to find another half a second to go into the 34s bracket. It is a fantastic hill though, quick and you have to be committed.

@@reallybigkidd Committed in more ways than one me thinks!! Half a second is a hell of a chunk to find in such a short space.. Nice one.