if i wanted my engine to rev to 9k...
- Thread starter steveep82
- Start date
Adam_Glanza
Member +
it will make huge power up in the revs, but its the low down power itll suffer,
no point having power above 5000 only when your on a tight twisty circuit!!
no point having power above 5000 only when your on a tight twisty circuit!!
Mike@TD.co.uk
Registered Trader <a href="http://www.Tuning
just do it, I wanna hear the noise at 9k rpm 
Dj ep
Member +
i have under bucket shims still and 1 piece follower ..
enginetuner
Fresh Recruit
Very interesting little article in Japanese Performance a couple of months back that may be relevant here...
Basic gist of it was that torque is very influenced by gearing , and that torque can always be altered with the correct ratios....
As Steve has a more track oriented car in mind I can see why he would wish to shift the torque band further up the rev range , power at 3000rpm suddenly becomes much less relevant as you are never that low down...
Go for it Steve , 9000 all the way....
Martyn
Basic gist of it was that torque is very influenced by gearing , and that torque can always be altered with the correct ratios....
As Steve has a more track oriented car in mind I can see why he would wish to shift the torque band further up the rev range , power at 3000rpm suddenly becomes much less relevant as you are never that low down...
Go for it Steve , 9000 all the way....
Martyn
Dan3SGTE
Member +
I can completely appreciate that for a race car but not for a road car....
I love having tonnes of pull/torque from 2000RPM... Thats my preference though.... I could pull out of a corner in 4th gear at low revs and still blast up the road with no problem at all.....
Just using my car an example as that what i have experience with, but generally speaking its nice to have the torque/power shortened therefore you'll have more over the whole rev range....
Once again this is my view
Each way can both work really well. I just dont like the idea of a 1.3 revving to 9000RPM. I'd be worried just how long that would last....
Will be very interesting if steve decides to do it though.
but not for a road car....I love having tonnes of pull/torque from 2000RPM... Thats my preference though.... I could pull out of a corner in 4th gear at low revs and still blast up the road with no problem at all.....
Just using my car an example as that what i have experience with, but generally speaking its nice to have the torque/power shortened therefore you'll have more over the whole rev range....
Once again this is my view
Each way can both work really well. I just dont like the idea of a 1.3 revving to 9000RPM. I'd be worried just how long that would last....
Will be very interesting if steve decides to do it though.
Dave@TM-developments.com
Trader
Done properly with a lightened and balanced bottom end and ARP bolts the 4e will happily rev to 9k all day IMO
Starlet_Sam
Moderator, Regional Area Reps Supervisor & Gay Car
12k or bust I say Steve
Im of the same opinion, im going to get a local compitition engine builder to have a look at the crank and see what he thinks... I suppose i should think about getting a light flywheel and pulley set? Required? Or just benificial...
Dave@TM-developments.com
Trader
The higher revs you go the more important light weight and balanced ancillaries become
Sound Per4mance VI
Member +
any more opinions?
GTti
Member +
Now now, let's not get technical... I'm just having a laugh!
Besides, I've got a K24, so power dies relatively quickly... That's why I've got cams to help with top end power...
Cams won't help with top end power in that scenario, they'll expose the fall of power further because the engine will breath easier.