Do people with turbocharged engine transplants (like the VAG) in an Exige not suffer from the laggy power characteristics in comparison to n/a or supercharged engines? Also, do they have sufficient traction enough to cope with the higher torque outputs?
Has anyone ever tried using the transverse SR20DET from a Pulsar GTi-R?
I have a 300 bhp plus audi transplant, and there is no discerbable lag, provided you are in the right rev range, so if you are doing 3500 revs in third and accelerate, the engine just goes…
Whereas if you are doing 1500 revs in sixth, it will still pull smoothly, but technically there is lag…
Personally, on a track, or when in a hurry, I would always be in the power band, and would not expect lag to be an issue…
I have more than enough traction, and watch with amazement and incredulity when people with lower powered cars seem to get wheelspin coming out of hairpins - I suspect they are just ‘looning’ by dropping the clutch after a full throttle change without electronic help…
I don’t get wheelspin, and I suspect that my Quaiffe ATB differential is proving to be worth its cost !!!
It’s the LSD.
I used to get wheelspin like crazy before, and after I fitted the LSD it doesn’t anymore, just pulls and pulls
When I was out in a SC Honda I was surprised at the levels of traction, even though it was slightly damp.
Most of the weight is over the sticky rear tyres.
Ian
I have a 300 bhp plus audi transplant, and there is no discerbable lag, provided you are in the right rev range, so if you are doing 3500 revs in third and accelerate, the engine just goes…
Whereas if you are doing 1500 revs in sixth, it will still pull smoothly, but technically there is lag…
…
I don’t get wheelspin, and I suspect that my Quaiffe ATB differential is proving to be worth its cost !!!
Interesting; I drive a ~270bhp 200sx, and I find it’s difficult to drive smoothly when I’m really wanting to go for it, due to the sudden rush of torque I get when the turbo fully spools; this is obviously minimised by keeping the revs higher, but is still discernable. This is off-putting enough that I’m looking for an n/a car next.
Maybe the VAG has less of an on/off delivery.
It’s the LSD.
I used to get wheelspin like crazy before, and after I fitted the LSD it doesn’t anymore, just pulls and pulls
Where did you get your LSD from, and how much was it ,Uldis???
Where did you get your LSD from, and how much was it ,Uldis???
There’s a drugs joke in there somewhere…after all Uldis is a South American with a quick car!!!..hmmm
Anyway.
The LSD is from Quaife and starts around �500 but I’ve heard people have trouble dealing with them directly due to minimum order sizes etc.
Waa sappenin bato!
LSD is good, man!
Yes, got it directly from Quaife, no problem at all, they even made me a (small) discount.
I thing it was around the �450 mark, and they sent it directly to the place where my box was being serviced.
Some people have said if you get wheelspin in a car like ours is due to wrong suspension setup, that an LSD is not needed.
Wrong.
Maybe it should be like: “you can setup your car without LSD to have little wheelspin out of corners, but it’s not going to be easy”.
I have to say I don’t agree about the LSD. It’s not needed even with 300+bhp.
Which 300BHP?
If you’re talking about the SC Honda, doesn’t it have an LSD from factory?
The JDM engines have an LSD but its not much cop as its designed for FWD and hooks up too aggresively. There is only one supercharged JDM that I’m aware of, the UK engine is a better place to start for SC as it has lower compression ratio.
Well, as I’ve said before, there must be ways of hooking up the rubber just playing with the suspension settings, but other than that, the Quaife LSD works wonderfully
If you still believe there is no need, better set Quaife straight, they seem to believe otherwise.
This proves enough in my eyes http://www.tunergp.co.uk/download/ResultsGP.pdf
Not to me.
That doesn’t tell me at all about wheelspin, before and after LSD.
That only tells me your cars are good and you’re better drivers than the others.
are you still running LSS Uldis?
Yep.
Would like the Ohlins 46 but can’t afford right now.
that will be why you spin the inside rear then. Mine did with LSS too… badly.
So you say it’s down to the spring rates? or the valving?
LSS is under sprung and relatively under damped (particularly after a few K miles when they are rooted). To add to this problem they don’t have a huge amount of droop travel. This leads to picking up an inside rear which isn’t very clever. Also if you look at pics of Exiges with LSS you will notice they roll an aweful lot at the front outside corner causeing the inside rear to unload… ever wondered why a stiffer front ARB helps understeer…
Nitrons are much better in respect to spring/damper rates although they have even less droop at the rear which can cause problems with elevation changes when you are using extremes of damper travel. On Simons race car we have adjustable length dampers at the rear so we can attempt to keep the dampers in their correct opperating range.
You should know how much it leans, you’ve been in my car
And yes, adjustable length, dual-adjustable Nitrons are on my list (if I can ever afford them).
Meanwhile, the LSD sorted the wheelspin.
Mind you, there is an added benefit. On straight roads, when wet, it had a tendency to spin one tyre, and then the tail would go sideways.
Not now, it spins both but keeps the car straight
SO, not bad, but yes, agree if there are other ways to set the car up, you can save about 4 kilos…