51 replies to this topic

[Matthew Bentley Racing Ltd]

 

- 5k base car - 5k engine - 6k Engine aux comp (lines, pumps, exhausts, intake, turbos etc)  - 2-3k custom dry sump system - 2k standalone ecu - 1.5k - dash with data logging - 15-20k sequential gearbox - 6-8k chassis (gt hubs etc but still with 2 way not 4 way dampers) - 2.5k Wheels/tyres brakes - 2k aero - (wing that works, sealed floor, splitter etc) - 1k - fitted cage - 2k - seat, wheels, harnesses    58k at a quick count up. And you never plan for everything, slicks, resprays etc. If you picked the best of everything I think 100k is do-able on a build. Look at Jamie Wilsons Exige.

I would not bother with a seq gb , seems a lot of race regs don't allow them. No mention of cooling in that list though, I think you would want to repackage a lot of the original design, and double up, 4 rads.

 

 

You might not bother but when you are chasing ultimate lap time in TA and not able to rely on out driving someone in a race then sequential is going to help. Plus if the driver isn't that good it really helps!

 

That list came to 58k with no real build costs, dyno/dev costs and bits like you mention missing. That's why I don't think 100k building a proper 500-600bhp is silly. Anyone can put 600bhp in a road car and blast about, but making a race car reliable and fast at that power is really going to cost.

[Mangham54]

 

 

- 5k base car - 5k engine - 6k Engine aux comp (lines, pumps, exhausts, intake, turbos etc)  - 2-3k custom dry sump system - 2k standalone ecu - 1.5k - dash with data logging - 15-20k sequential gearbox - 6-8k chassis (gt hubs etc but still with 2 way not 4 way dampers) - 2.5k Wheels/tyres brakes - 2k aero - (wing that works, sealed floor, splitter etc) - 1k - fitted cage - 2k - seat, wheels, harnesses    58k at a quick count up. And you never plan for everything, slicks, resprays etc. If you picked the best of everything I think 100k is do-able on a build. Look at Jamie Wilsons Exige.

I would not bother with a seq gb , seems a lot of race regs don't allow them. No mention of cooling in that list though, I think you would want to repackage a lot of the original design, and double up, 4 rads.

 

 

You might not bother but when you are chasing ultimate lap time in TA and not able to rely on out driving someone in a race then sequential is going to help. Plus if the driver isn't that good it really helps!

 

That list came to 58k with no real build costs, dyno/dev costs and bits like you mention missing. That's why I don't think 100k building a proper 500-600bhp is silly. Anyone can put 600bhp in a road car and blast about, but making a race car reliable and fast at that power is really going to cost.

 

 

When I had the chains done by RASP in Grimsby that was the conversation we had. It is easy to build a powerful car that can do 10mins worth of hot laps, but the step-up to make it reliable for more than 15mins is a huge jump, let alone some of the larger rally stages that he built cars for people.

[siztenboots]

tbh, little value in starting with a £5K base road car to convert to a race car , might as well buy a radical , http://www.pistonhea...le-2013/2779131

[turbotoaster]

They are clamping down on aero it seems, they werent a fan at all of my car when i popped into scrutineering with it, I tried to explain that im trying it this way as I cannot afford to have someone put me a 500bhp engine in the car, and that aero doesnt cost me anything to make, but i will have to make some amendments to my aero before they will let me enter.

 

I also said that surely for the bottom class you want people to come up with interesting ideas of there own to go quicker rather than throwing £50k at a tuner and telling them to build them a race car, but I think that fell on deaf ears a little, still the amendments I need to make wont really slow me down, plus its motivated me to add alot more downforce to the car before brands and also a few ways of reducing drag at the same time.

 

so hopefully my plans will work out...........just for reference when the £100k is mentioned, my car cost me £15k to build including buying the car and I have changed pretty much every single aspect of the car for that, bodywork, aero, suspension and geometry, weight distribution, engine setup, gearbox and lsd, ecu, fueling and tank, brakes, wheels/tyres, seats, steering wheel.

 

So it can be done on a relative budget, i would expect I will be one of the lowest overall cost cars in club rwd, I know i will certainly be the lightest at 700kg(trying to get it down to 680kg) which should play into my favour on consumables like tyres and brakes.

[The Batman]

Don't forget to have a poo

[JohnTurbo]

Don't get too hung up on this 100k thing.

 

It was only my perception from the conversation.

[turbotoaster]

Well it all depends which class you want to run in and who you are up against, that will dictate how much money you want to put into it.

 

Plus you need to decide are you trying to win the class or just be competitive so your not a million miles away.

 

Im sure a few people have  seen the video of my first ever lap at snetterton, running to much rear brake bias meant on that lap i was learning that i couldnt keep my foot on the brake at all while turning, also that the issue i have going from 5th to 4th really needs resolving and i didnt use any of the correct lines through the corners and had not learned how much corner speed the car would carry yet.

 

Anyway on that first lap i did a 2.13, which you can see theres tons of time to be gained, which infact happened throughout the day.

 

Now if you look at the lap times from the last time time attack did the snetterton 300 you will see it was 2012, the fastest at the time was Mike with a 2.07, but next inline was Umar with a 2:13.5, so on my first ever lap i would have been competitive and this is a car that hasnt cost much to build at all, i know Umar car should be faster than it was in 2012 but you get the point.

 

What im trying to say is you dont need to spend a shed load of money to enter, just be clever where you spend the money, i looked on the snetterton thread and i think dave with the turbo'd vx220 was also doing 2.13s around there.

 

The big test will be brands, need to get into the 52s to be competitive which because that track is more about cornering should help the lotus/vx chassis

Edited by turbotoaster, 28 September 2014 - 09:36 PM.

[chris_uk]

be interesting to see how fast it goes round croft. mike - 1'30.6 darren - 1'37.00 i sit in the middle of them in my road car. (closer to darren mind) 1'35.5 whats that tell you about all this downforce your obsessed with? what you need to do is strip the car back and drive it, then start adding bits when you realise that you need them.. all that downforce is going to do is slow you down.

[mbes2]

Well it all depends which class you want to run in and who you are up against, that will dictate how much money you want to put into it.

 

Plus you need to decide are you trying to win the class or just be competitive so your not a million miles away.

 

Im sure a few people have  seen the video of my first ever lap at snetterton, running to much rear brake bias meant on that lap i was learning that i couldnt keep my foot on the brake at all while turning, also that the issue i have going from 5th to 4th really needs resolving and i didnt use any of the correct lines through the corners and had not learned how much corner speed the car would carry yet.

 

Anyway on that first lap i did a 2.13, which you can see theres tons of time to be gained, which infact happened throughout the day.

 

Now if you look at the lap times from the last time time attack did the snetterton 300 you will see it was 2012, the fastest at the time was Mike with a 2.07, but next inline was Umar with a 2:13.5, so on my first ever lap i would have been competitive and this is a car that hasnt cost much to build at all, i know Umar car should be faster than it was in 2012 but you get the point.

 

What im trying to say is you dont need to spend a shed load of money to enter, just be clever where you spend the money, i looked on the snetterton thread and i think dave with the turbo'd vx220 was also doing 2.13s around there.

 

The big test will be brands, need to get into the 52s to be competitive which because that track is more about cornering should help the lotus/vx chassis

 

 

Brands, 8th Nov ? round 6 right ? local track, so will pop along to watch the racing

[siztenboots]

Since 2012 the game has moved on a lot , they will have several years extra money and testing development.

 

You might get mixed results trying to test at trackdays , developing yourself as a driver and the car.

 

Important thing is you have fun.

[Nev]

- 5k base car - 5k engine - 6k Engine aux comp (lines, pumps, exhausts, intake, turbos etc)  - 2-3k custom dry sump system - 2k standalone ecu - 1.5k - dash with data logging - 15-20k sequential gearbox - 6-8k chassis (gt hubs etc but still with 2 way not 4 way dampers) - 2.5k Wheels/tyres brakes - 2k aero - (wing that works, sealed floor, splitter etc) - 1k - fitted cage - 2k - seat, wheels, harnesses    58k at a quick count up. And you never plan for everything, slicks, resprays etc. If you picked the best of everything I think 100k is do-able on a build. Look at Jamie Wilsons Exige. [/quote I couldn't find any transverse seq. Gearboxes that could cope with turbo torque. Even a beefy SCed engine would mince them up in no time at all. If I had a 25k budget I'd install a hartley v8 with a suitable transaxle. Moving the fuel tank would allow a 50/50 weight distribution for better handling. There is one in Czeck and it is way way faster than any UK vx220. If I had a 75k budget (and open wheel cars were allowed) I'd get a Gould and prep it for each track specifically. A 100k budget would be huge, not sure what I'd do with that much, but wisely spent it would be epic and very unlikely to be a vx220 I think.

[Matthew Bentley Racing Ltd]

http://www.dyno-plot...n---TDI-PLC.htm

 

 

This was the first mapping session, made a load more grunt once the head was flowed. That was on EP's sequential.

 

Hartley V8 or Radical V8..............eeekkk. Big budget needed.