Turbo - twin or single

[robx]

Excuse my ignorance on this one, but having read through some previous topics it would appear that some Supras have been converted to single turbo's...

Now, here's where I show my ignorance... surely 2 have to be better than one...? what advantage is gained by converting to a single...?

Cheers

Rob

[alex h]

LOL - that could cause such a messy thread http://www.mkivsupra.co.uk/iB_html/non-cgi/emoticons/smile.gif
To be brief - I can explain further if needed - the two turbo's you have on your car are of a certain size (small) and they are bolted to a sequential system which gets No.1 producing boost by 1500rpm and then brings in no. 2 at about 3,500-4,000rpm.
If you want more than 450bhp you would exceed all that the stock system is capable of handling, at this point you can opt for a med-large single or a PAIR of larger turbo's but with both options you have to get an entirely new Manifold, fuel system, intake system etc as the stock systems can only run stock turbo's they are incompatible with other types and of course sizes.

Most people go single as it gives them the power they want, without the extra weight or cost of a new parallel twin system (only the stock system can be sequential).

Singles can come in various sizes able to flow 100-1000+hp. Parallel twins can too but they weigh more and cost more. but they do look nice http://www.mkivsupra.co.uk/iB_html/non-cgi/emoticons/smile.gif

Does that help? Or do you want to know something more specific?

[robx]

Thats very helpful. Just one of those things that I've wondered about but never been able to find an answer...Thankyou.

Rob

[alex h]

NP mate. Please ask away. Though I'm going to move this to Engine Tuning as it's not an electrical issue http://www.mkivsupra.co.uk/iB_html/non-cgi/emoticons/smile.gif