11 replies to this topic

[MyZeemaxMiniTurbo]

just a thought, it obviously could be done......but has anyone done it? how did they get on? how did the car run?

[Bungle]

with a turbo set up you have air forced into the engine, why would you need 2 carbs ?

[MyZeemaxMiniTurbo]

spread the fuel across cylinders more efficiently?

[James_1]

It has been done... (Janspeed SD1 Twin-Turbo)

With a turbo because the inlet is pressurised the problems with uneven distribution of fuel is less of a problem than with a N/A setup so a single carb is not too bad.

[Magic jason]

its alright on a nice big engine like that, but surely all mini engines are too small :L

[03jkirk]

cant do twin carb turbo with anything like HS2 or HS4 as they are not sealed units like the turbo HIF44 and a twin HIF44 (if could source a carb with mirrored controls) would be completely pointless as with a good turbo set up the HIF44 can be used to produce more power than many components on the mini can withstand so it doesnt really restirct the engine.

[Ethel]

That's some setup in James's photo! Looks like a twin turbo, suck through system

More like two separate installations, they only share that huge tin T (air filter?). There's that Janspeed kit that features in DV's book, it had a twin choke Dellorto pinched off the Turbo Esprit - if that isn't over carbing, I dunno what.....

[Turbo Phil]

There's that Janspeed kit that features in DV's book, it had a twin choke Dellorto pinched off the Turbo Esprit - if that isn't over carbing, I dunno what.....

It's only a 40, so hardly overcarbed ! lol

[Turbo Phil]

http://www.turbo-min...3373/52548.html

[ACDodd]

Lots more acceleration to be had from twin boosted SU's. No more power though.

AC

[Wil_h]

Lots more acceleration to be had from twin boosted SU's. No more power though.

AC

Whay would this be? You are goverened by the flow of the turbo, not any carburation; unless you have reached the limits of what you have. The HIF44 has been shown to make well over 200 bananas, so why do you need any more.

Thre is no real worry with the carbs leaking, the SU is quite well sealed. It may be worth putting seals on the spindle if possible though.

[James_1]

That's some setup in James's photo! Looks like a twin turbo, suck through system

Yeah, I couldn't find the photos of it in blow thro form but it was run in both forms. It's the Janspeed Twin-Turbo SD1. I don't know what happened to the car but it was a real monster at the time. The engine sold on eBay a few months ago, in blow thro form again IIRC.