Projects...
- Thread starter Oxbow
- Start date
Firestar_3x said:
Whilst this is true, you should not forget that before an engine can do any productive work (torque) it has to be able to move its own weight before it thinks about moving the weight of the vehicle.
I just phrased my term 'lag' wrongly. I meant a heavier car will respond differnently to a turbo than a lighter car would.
A lighter cars engine will get through the revs quicker than a heavier car would, therefore lag would not play such a major part as the exhaust gases would build more rapidly.
Apart from the weight of the engine, I see no real benefit in turbo charging a car that is sub 1000kgs, but I suppose at the end of the day its either a smaller lump turbod or a bigger heavier NA lump.
This is why i'm asking really.
Caporegime
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burns said:
I'm not witch hunting anyone i simply put i will be most upset and displeased if it was him.
Also just pointed out that turbo lag has totally nothing to do with the weight of the car, same engine in light or heavy car will result in the same lag just a quicker rate of acceleration, lag is the time it takes for the turbo to spool and reach boost, this will remain the same regardless which application the engine is used.
Oxbow said:
Fair play
Well my statement is a statement of after you do weight reduction to the carpenski said:Zip...Please re-read your posts and pass them through a 'are you talking crap' filter before clicking 'Submit Reply'
*n
If he really wants a light car he could go whole hog and try to design build a kit car. Depends how much he knows though
Zip said:Check out this website and you will see what i mean by the MK1 with the V8
Once it has the V8 in it, It will end up weighing as much as the MK2 Mr2
www.twobrutal.co.uk
How do you get round the fact that it will still look like a complete pile of poo with an interior so bad that it could be confused to having being made from lego.
Better to just pick up a real Mk2 Turbo for about 2 grand and mod that.....
How about a nice mk2 MX5, then dump a Rover v8 in it. The v8 doesn't weigh that much as it's alloy, and strikes me as creating a more reliable TVR.
It has been done before (so it's possible), but not that often (so it's rare).
More to the point, you can sell it to me next year, as I'd love one of those.
It has been done before (so it's possible), but not that often (so it's rare).
More to the point, you can sell it to me next year, as I'd love one of those.
Firestar_3x said:I'm not witch hunting anyone i simply put i will be most upset and displeased if it was him.
Also just pointed out that turbo lag has totally nothing to do with the weight of the car, same engine in light or heavy car will result in the same lag just a quicker rate of acceleration, lag is the time it takes for the turbo to spool and reach boost, this will remain the same regardless which application the engine is used.
Fair play
I appreciate this comment, but I do have to point out that torque plays a factor and you could use a motorbike as an example. A motorbike 1l engine only has to produce torque to propell itself and a rider, wereas a 1l car engine has to move its own weight, the weight of the car and the occupant.
In a lighter car, the engine has to produce less torque to move the vehicles weight so it will rev easier and quicker over the same application in a heavier vehicle. Quicker rev repsonse means quicker build up of pressure at lower in the rev range. That reduces the overall effect of lag.
Something like a Caterham with an M lump sounds good, but are the kits not expensive?
Caporegime
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Oxbow said:
Really don't get this why not?
After all the lighter the car the quicker it is, great power gains to be had with forced induction and if you know what your doing you will get little or no lag at all, are you against FI in general?
Firestar_3x said:
No, not against forced induction. Hell, i'd supercharge the M lump if I could afford too!
I was going to say that there could be more work involved in setting up a FI lump with pipe work, intercooler, etc, but thats a silly thing to say as i'd be starting from scratch anyway!
merlin said:
The M lump I want to put in the car I want to build as per post one!
Do you have a problem with me as I dont remember upsetting you?
Firstly, i'm some user whos banned, secondly I've stated that I own an M3 or M5.
Sorry if I have, but i'm confused
Oxbow said:The M lump I want to put in the car I want to build as per post one!
Do you have a problem with me as I dont remember upsetting you?
Firstly, i'm some user whos banned, secondly I've stated that I own an M3 or M5.
Sorry if I have, but i'm confused
He was just wondering what lump you are using?
Is it from an M5 or from an M3
Zip said:Must have missed that bit
How much money have you got to spend Oxbow?
Well, i'd like to do this progressively so there is no budget planned and no maximum budget allowed for.
I have around £5k now which I can use to start the project, but if over the next year or two I need other parts, bits, etc then I will try and finance it accordingly.