V8 or BEC

[Bazzer]

Barry's mutant nutter machine

PMSL            

I laughed when I got my insurance details back this year instead of calling it a MegaBusa they obviously miss heard and called it a MegaBooster. So thats what its called now :-)

Bazzer

[scruffythefirst]

[MILES.]

I wonder what Mr Colin Chapman would choose, I have a feeling he would be a BEC man. Add lightness.

[MILES.]

I dont think the choice is down to which has the most torque or is the fastest or is more suitable for road or track. The choice for me is which puts the biggest smile on your face for the longest. Having said that I reckon whatever engine you choose the Westfield package will have you grinning from ear to ear. I have had as much fun driving a Mk1 1600 Escort as I have an Impreza turbo or 125 cc Suzuki motorbike.

[rich101]

Dump valve if you've got one fitted, otherwise the chatter / fluttering sound is compressor stall (much cooler)

Slight thread hi-jack...

Scruffy (and any other cossie owners),

Isn't the fluttering/chirping noise the Cold start valve?? I don't know if you've ever looked at it but it's basically a solenoid - I reckon it's more likely to be that than compressor stall, and it's definitely not the wastegate as it'll still happen without positive boost.

Does sound cool though!  

Back to thread....

[scruffythefirst]

Isn't the fluttering/chirping noise the Cold start valve?? I don't know if you've ever looked at it but it's basically a solenoid - I reckon it's more likely to be that than compressor stall, and it's definitely not the wastegate as it'll still happen without positive boost.

Nope, my IACV is shut over 1500rpm and only makes a faint buzzing noise anyway, try disconnecting it and see if it makes any difference.  The wastegate is just a valve in the exhaust so can't make any noise.

[rich101]

Nope, my IACV is shut over 1500rpm and only makes a faint buzzing noise anyway, try disconnecting it and see if it makes any difference.  The wastegate is just a valve in the exhaust so can't make any noise.

I think it still makes the noise with it disconnected (if you manage to keep it idling!! )

My theory behind it being the idle valve is that when you back off the throttle, there will be a vacuum in the inlet - this'll force the valve open, the vacuum will disappear so the valve will spring shut again - causing the vacuum again etc etc....which 'could' be the cause of the chirping.

Might try removing it altogether sometime to find out for sure!

[scruffythefirst]

Well on most cars (inc my cossie) the IACV is still connected to the inlet pipework, so any noise from it has to travel through the intercooler, all the plumbing, compressor and out through the air filter.  Plus to generate the volume involved (I can hear it during gearchanges flat out at 100+) it'd have to involve a lot of air movement.

Also, a vaccuum in the Inlet will keep the valve shut, as will the boost on the other side of the valve.

[Guest]

Edd , actually the engine choice is not quite as clear cut or important as you think , they all have there merits in one way or another be it bec cec or v8 , however its how the car is put together and setup that will likely make the difference between a quick well handelling track car and a nice road car .

If you want both somewhere along the line there will be a compromise .

I have a cec and have been on days with baz and his turbo busa , chris g with his bec , other cec and even the large yellow V8 .

I have a close friend who runs an S2000 engined car also , now we have similar driving levels and if you back to back those 2 cars neither one is quicker on a circuit , he has 240bhp to my 220 bhp i have more torque he has more revs ,over a lap you can't split them , i'm sure the likes of bazzer and chriss will tell you how well sorted those 2 cars are , however neither are plesant on the road .

I have driven many things on track and road and would not say one is better than the other as its more individual , my cars a s**t road car but good track car , we also own an elise which IMHO is good at neither ,compromised road car compromised track car , my diesel road car point to point feels way nicer on the road , in fact in the wet on track its left elises and the like behind , there is no real answer to your question is the honest truth .

Everyones opinion will differ and tbh the best bet is a car that you like that suits your primary need and budget .

if you like revs and a sequential box i'm sure a busa will suit , if you wanna change gear less a torquey V8 , something in the middle a 200+ bhp vx/zetec/dura but get a car thats speced to suit .

brakes for track are important , the handeling setup is crutial , dampers very important , saftey may also be a concern , more and more caged cars around these days . You may have a carbon fetish (  so wish i didn't) but get what floats your boat .

thats before we even go down the road of xtr2/4 which are anothe ball game (can't comment never driven)

or maybe a nice porsche GT3 , now theres a car that good on track whilst being good on a road , but how fast do you wanna go ?

nobody i fear can advise you as to whats best but whatever you get enjoy it , but try all the options you can.

[conibear]

Edd , actually the engine choice is not quite as clear cut or important as you think , they all have there merits in one way or another be it bec cec or v8 , however its how the car is put together and setup that will likely make the difference between a quick well handelling track car and a nice road car .

If you want both somewhere along the line there will be a compromise .

I have a cec and have been on days with baz and his turbo busa , chris g with his bec , other cec and even the large yellow V8 .

I have a close friend who runs an S2000 engined car also , now we have similar driving levels and if you back to back those 2 cars neither one is quicker on a circuit , he has 240bhp to my 220 bhp i have more torque he has more revs ,over a lap you can't split them , i'm sure the likes of bazzer and chriss will tell you how well sorted those 2 cars are , however neither are plesant on the road .

I have driven many things on track and road and would not say one is better than the other as its more individual , my cars a s**t road car but good track car , we also own an elise which IMHO is good at neither ,compromised road car compromised track car , my diesel road car point to point feels way nicer on the road , in fact in the wet on track its left elises and the like behind , there is no real answer to your question is the honest truth .

Everyones opinion will differ and tbh the best bet is a car that you like that suits your primary need and budget .

if you like revs and a sequential box i'm sure a busa will suit , if you wanna change gear less a torquey V8 , something in the middle a 200+ bhp vx/zetec/dura but get a car thats speced to suit .

brakes for track are important , the handeling setup is crutial , dampers very important , saftey may also be a concern , more and more caged cars around these days . You may have a carbon fetish (  so wish i didn't) but get what floats your boat .

thats before we even go down the road of xtr2/4 which are anothe ball game (can't comment never driven)

or maybe a nice porsche GT3 , now theres a car that good on track whilst being good on a road , but how fast do you wanna go ?

nobody i fear can advise you as to whats best but whatever you get enjoy it , but try all the options you can.

beatifully written

[Terry Everall]

Its not the size that matters -just what you do with it

[Terry Everall]

Its not the size that matters -just what you do with it

[Dave Eastwood (Gadgetman) - Club Chairman]

Its not the size that matters -just what you do with it

And how many times you do it?        

[Bazzer]

Yep my car is crap on the road as well.

But on track its fantastic and thats where I use it most, so it works for me.

Bazzer

[Bazzer]

The other thing is as Harv touches on if you want to go fast on track the first thing to get sorted is the chassis. Geting it handling sweat will gain you more time than tunning the engine to start with. Once the car is set up right then you can add power to suit.

Last track day I did I was running a crossply setup with radail tyres. As I switched from ACB10's to A048's (purely for cost would rather run ACB10's)

Car was probably slower than the last time I went with a good setup and this time I was running with 70BHP more.

Cheers

Bazzer