I need the old gearbox rebuilt, the gearset for 3rd and 4th to fix it is a bit steep price wise �900 along with the rebuild, oil cooler and swop over it is going to come to a lot of cash, but and it is a big but, is having an LSD fitted worth it or not? My car will spin up the inner rear wheel out of 2nd and sometimes the tighter 3rd gear corners, I just tend to leave the TC on these days and just be a bit more gentle on the throttle. So will adding one give me more understeer? Is it worth the �500 for it? And lastly which type plate or the other one?
Ta muchly
Your choice to fit one or not , but if you do … Quaife are…
bulletproof
have a lifetime warranty
never need adjusting
very well race proven
Some like a “Proper Diff” (LSD)… Some swear they’re not needed…
Proof has to be that Lotus now fit them as standard in the higher powered Exiges…Although they fit the plated type…
I don’t think the 189 bhp Exiges would benefit from one as more power is needed to spin the inside wheel …
But yours ???
Get one fitted !!
PS I fitted mine as a pre-requisit to adding more power in the future…
Yes deffo worth it. The Quaife Torsion ATB diffs are very very good, it will not make your car understeer. In my opinion there are no downsides, only upsides!!
While your box is out, you may as well get one thrown in.
If the box is out then definetly get one fitted or you’ll regret it (talking from experience on my S1). I agree that the Quaife is a good durable choice, low maintenance and not too agressive. Plate diffs are more responsive and will give a different feel to the car depending on how tight they are set, they also need some TLC over time.
I think it’s still worth while on a 190 bhp car as well. It’s on the shopping list for mine. The inside rears were lighting up frequently at Oulton, but that was before I put the Ohlins on so it was a bit boat like and riding high (as Mr Pesky kindly pointed out!)
That certainly gets my vote. The thing is, they are a local company and there are zillions of Quaife ATB’s out there and no matter what reputation Quaife’s gearboxes get, I have never ever heard of ons of there ATB diffs going wrong or breaking.
[quote=wesj111]If the box is out then definetly get one fitted or you’ll regret it (talking from experience on my S1). I agree that the Quaife is a good durable choice, low maintenance and not too agressive. Plate diffs are more responsive and will give a different feel to the car depending on how tight they are set, they also need some TLC over time.
I think it’s still worth while on a 190 bhp car as well. It’s on the shopping list for mine. The inside rears were lighting up frequently at Oulton, but that was before I put the Ohlins on so it was a bit boat like and riding high (as Mr Pesky kindly pointed out!) [/quote]
That’s why I asked about suspension… I personally have no problems at Oulton park with spinning an inside wheel. I’m not saying an LSD isn’t worthwhile, but perhaps the money would be better spent on suspension/setup first.
Of course, if the box is out anyway it’s a bit easier, but just make sure the problem you are trying to fix isn’t caused by something else first.
This could turn into a real hob nobs discussion now.
I know Scuffers and Randy have always gone on about “a well setup car doesn’t need an LSD” and to a certain extent I agree.
But in the very limited amount of racing I have done, I have made up ground on more Honda (and I’m not having a go at Honda’s here, its just that is predominantly what I race against) cars out of tight to medium corners, due to them spinning the inside wheel than I care to remember. Scuffers and Randy included!
A plated diff is a different story, they do upset the handling of a car and will make it push on in a corner, but in my experiance a Quaife ATB type diff will not, there is no downside at all in my opinion.
