Haynes Forums  

Go Back   Haynes Forums > Haynes Roadster Forums > Donor cars
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
  #1  
Old 17th February 2010, 11:14 PM
danblack87 danblack87 is offline
Junior Member
 
Join Date: Feb 2010
Location: Birmingham
Posts: 12
Default

Lol, thanks guys. Appreciate all the information and help.
Would love to just buy one and drive, but it would never be the same as driving a beast of a trackday machine that I actually made myself.

Cheers,

Dan.
Reply With Quote
  #2  
Old 18th February 2010, 12:29 AM
londonsean69 londonsean69 is offline
Senior Member
 
Join Date: Nov 2008
Location: Surrey/South London Border
Posts: 453
Default

Quote:
Originally Posted by danblack87 View Post
Lol, thanks guys. Appreciate all the information and help.
Would love to just buy one and drive, but it would never be the same as driving a beast of a trackday machine that I actually made myself.

Cheers,

Dan.
You will not be able to build "a beast of a trackday machine" on the cheap.

Somewhere along the line, you will need to spend decent money.
First off, you need to define cheap. I reckon £150 for a sierra is a bargain.

BUT, with the 250bhp you want, you will need to look at either
highly tuned zetec lump £££££
Cosworth £££££
something totally different £££££ as everything else will need modding.

Once you have your 'cheap' Sierra and 250bhp engine, how are you going to stop it??
Performance cars have performance brakes for a reason.

Assuming you have the power, and the ability to stop that power, you will then need wide wheels to lay that power down on the track, more ££££, or decent tyres, again, more ££££

And even if you managed to get the above at reasonable rate, there is a minutae of things to consider, such as a propshaft that can take 300bhp.

I would be seriously impressed if anybody got a 250bhp roadster on the track (not the road, so saving shedloads on lights, IVA etc) for less than £5k.

People really need to realise that big BHP is not the be all and end all of these types of cars. If you had a 170bhp beemer, and a 170bhp roadster, I would lay money on which is most fun, and fastest around a track.

There is a reason the Caterham R500 is quicker on the top gear track of lies than a £1m Veyron.

Pick one, budget, or BHP
__________________
Sean
Reply With Quote
  #3  
Old 18th February 2010, 12:43 AM
danblack87 danblack87 is offline
Junior Member
 
Join Date: Feb 2010
Location: Birmingham
Posts: 12
Default

I appreciate your honesty.
In that case, I would prefer the BHP all the way, even if I have to elongate the build a little to suit my budget.

In terms of 200-250bhp I was looking at a zetec or Duratec engine setup and was going to work on the mods for that one step at a time, not go the whole hog right away.

Thanks for the honesty.

Cheers,

Dan.
Reply With Quote
  #4  
Old 18th February 2010, 01:00 AM
londonsean69 londonsean69 is offline
Senior Member
 
Join Date: Nov 2008
Location: Surrey/South London Border
Posts: 453
Default

Quote:
Originally Posted by danblack87 View Post
I appreciate your honesty.
In that case, I would prefer the BHP all the way, even if I have to elongate the build a little to suit my budget.

In terms of 200-250bhp I was looking at a zetec or Duratec engine setup and was going to work on the mods for that one step at a time, not go the whole hog right away.

Thanks for the honesty.

Cheers,

Dan.
A well setup BEC with around 150bhp will smash a CEC day in day out round a track, 250bhp is only just usable, by a good driver, in something as light as this.
You won't be able to put the power down without risking theback end stepping out all the time.

I thought about all of this long and hard, and my build isn't exactly budget. I had a deposit down on a 260bhp turbo zetec when the seller pulled out. I am now undecided as to which direction I will go with the car. But, if I have 180bhp I would be more than happy, given the performance capable from a well put together and setup car such as this.

I see you keep going on about 'cheap'. I have been told may times, "Buy cheap, buy twice". Perhaps if you gave people an idea of the budget available for your build, they might be able to provide a more relevant suggestion.

There is a difference between cheap, and good value.

You say your knowledge of mechanics is small, in which case you will be paying someone to get whatever engine it is you chose up to spec. Engine builders are not cheap.

As an example
There is a very easy way to a 250bhp zetec. It's called £7700 +vat from raceline

Or, you have to turbo a normal zetec, which will cost around £2-3k, plus a fair amount of mechanical savvy.

Sorry to piss on your chips, but I think you are being totally unrealistic.
You want 250bhp - why??
You think you can handle 250bhp in a 550kg car?
You want it cheap, yet, by your own admission, you can't do it yurself.
You have chosen to ignore what a lot of people on here have given you as good advice.

This is part of the reason I have stayed off the forum for so long.
  • Nobody seems to know how to use the search function
  • Everybody wants something for nothing
  • Loads of people joining have totally unrealistic expectations eg. 250bhp for "Cheap"

If that sounds like a rant, it's because it is. I'm pissed off with people who refuse to listen to any bit of advice given to them, and keep asking the same question until they get the answer they think they want.

If you want a track day car, look on locostbuilders, there are ex-race cars going for around 4k. Cost and performance is an exponential equation. If you want to go twice as fast, it will cost a f*ck site more than twice the money. Anybody can go fast in a straight line, where big BHP makes a difference, corner speed is where it's at in the real world
__________________
Sean
Reply With Quote
  #5  
Old 18th February 2010, 07:12 AM
twinturbo's Avatar
twinturbo twinturbo is offline
Super Moderator
 
Join Date: Jul 2008
Location: Carlisle
Posts: 4,393
Default

I don't see why a big HP car has to cost as lot more,

Brakes from the sierra stop 230BHP XR4x4 Turbo Technics cars so should be up to the job of stoppign a little 7.

There are wngines out there that can produce 220-240 BHP for a few hundred pounds.

Propshaft will not be a problem, sierra props will take BIG power.


But it is all a bit unneccesary..

TT
__________________
You only get a woosh with a dump valve

Build Thread


Man Cave Mantiques



Cecil Street Auto Repairs Garage Carlisle




Build Cost £4181.65 - Last - Wheel Cylinders
Reply With Quote
  #6  
Old 18th February 2010, 12:40 PM
mark mark is offline
Senior Member
 
Join Date: Mar 2009
Location: Billingham (north east)
Posts: 770
Default

250 bhp in a seven style car is alot unless you are a very competant driver, its easy to get caught up in the big bhp conversations but its really not required to have a fast roadster as they are so light.

I have had a few bmws including an m3. If you think a 3 series with 170bhp is fun in a car that weighs the best part of 1500kg, then 150bhp should be more than enough to keep you happy in a seven.

Spuds car running 2lt zetec/bike carbs is easily as quick as an m3 upto about 80mph and would run rings around it on the twisties

I had a big power 300zx and was always worried when coming out of corners that it was trying to kill me the back end would go at 80mph in a straight line if you provoked it and thats not fun. If my roadster behaved the same i wouldnt be happy about it.

But each to their own and good luck
Reply With Quote
  #7  
Old 18th February 2010, 02:11 PM
deezee's Avatar
deezee deezee is offline
Senior Member
 
Join Date: Jan 2009
Location: Wirral
Posts: 744
Default

My 280bhp, 1200kgs car is about fast enough for me (accelerating not top speed). I love the lunacy of it all. But also it doesn't handle as well as I'd like. Being mid engined, when it gets out of control, its gets RAPIDLY out of control.

Everytime I think of people going fast around corners, I think of this story

http://prison-diary.blogspot.com/
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 02:19 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.