7 replies to this topic

[HUBBA.HUBBA]

If it was all well balanced. Would a high revving motor drive well with a super charger.

[Midas Mk1]

There's a guy on turbo minis atm building a short stroke supercharged SC12 engine, pretty sure he's on here too (Green Mk2)

[MIGLIACARS]

why would you want to rev a supercharged car, the key is to keep the revs down make things last and let the blower do the work!!!!!

[HUBBA.HUBBA]

why would you want to rev a supercharged car, the key is to keep the revs down make things last and let the blower do the work!!!!!

That's the type of thing I want to know. 'Is there any point or not?' Cheers
Perhaps a normal stroke, 7 port, scharged then? Just fancy a 1071c though
Wonder what sort of power I would get from a na short stroke 7 port.
Presumably the low down torque on a 1071 would rubbish so wouldn't a charger help?

Edited by HUBBA.HUBBA, 15 January 2017 - 11:50 AM.

[Dusky]

What do you call high revving? Past 7.5k most superchargers get inefficient from my experience.
Everything can be made to work, even blowed short stroke cars. Just need the money and time to do if.

[MIGLIACARS]

Depending on what s/c you use, you just gear the pulleys to suit the revs, but if your revving it to 9000rpm with big power and tork the poor engine will be getting a beating from every side.

 

my s/c engine is a standard stroke, and it revs to 7300rpm which i consider a low rever for a race unit.

the power is 167 atw

and tork is 120 at the wheels

 

im positive more can be achieved but there are other things to consider not just the grunt.

 

a n/a 1071 7 port with all the goodies on should see 110 atw if you want to spend the cash on it. lots of cash

[mini13]

it could work rather well,

 

with a charger you could use it to tame a lairy camshaft, basically an engine fallso off cam when the air speed gets low enough that it has trouble "flowing the right way" through the engine, at low revs a charger would help with this, even with a couple of PSI boost.

 

the main issue would be not overspeeding the charger I think as a lot dont like too many rpm, the BMW mini eatons for example have a max rpm of about 14k iirc so once youve geared it up for enough boost you could run into issues.

[timmy850]

Here is the turbominis link:

http://www.turbomini...p=vt&tid=602463

 

An example is the supercharged engine in the Ariel Atom, the K20 is a square engine (86mm bore and stroke) and it revs to 8200 rpm with a supercharger. A 1071 is just on the short stoke side (70.6mm bore, 68-70mm stoke) so has a similar bore/stroke ratio. 

http://www.autocar.c...om-supercharged