toothpicsk8

yah i was on www.atkinsrotary.com and they had a link to a site that sold super charges i forgot the name but they had one that gave the stock engine 170 somehtign extra horses and with better injecters it was supposed to add alil more. and i was wonderign how many horses a turbo would give you from stock?

Ocelot

Turbos aren't all the same, it depends on the setup...

version13

If you're talking about turboing from a stock turbo to an NA block, the turbo will put out about the same because you're going to need to limit your boost to ~8psi, the same as the FI supercharger camdem offers.

marlaman

you need to look around in the timeslips and dyno section. there are good numbers, great numbers, and a few insane numbers floating around there.

Matt

Rx7MPGUY84

locketine

in the end a turbocharger will always produce the most power at a given boost level due to it not causing ne loss in the system. a supercharger however gives a smoother, constant boost whereas a turbo has to build up pressure to get to it's max boost.

some friend of mine told me a supercharger is always in it's max boost, but I don't believe that. someone wanna confirm?

marlaman

Then i'm curious why a turbocharger isn't used on a huge *** bigblock chevy motor as compared to the big lysholm screw type superchargers on really beefy cars. the lysholm chargers can be pretty damn big so compared to a lot of turbos that don't flow as much air you 1st statement i woudl think isn't entirely true. (i think)

and no superchargers boost also goes up too. the faster the pulley's go the faster the internals of a supercharger work. in essence it does "spool" too. but i dunno i'm too tired to think straight
Matt

version13

Turbolag is the reason it isn't on a huge truck motor, you need the power to tow something right off the batt.

DerangedHermit

Turbodiesels...

snub disphenoid

He was talking about big block engines that drag cars use. They use Lysholm superchargers because they have higher efficiency than turbochargers. Also, superchargers run off of a pulley that's driven by the engine, so the more power the engine puts out without the aid of a supercharger, the more power the supercharger adds and the better it adds that power.

Something to think about though is that the world's fastest car on drag radials is a turbocharged Mustang.

marlaman

thanks for the backup snub

Matt

RoTa7

were would the superchager go? i have heard about this but never seen any pics

Impreza2RX7

Also, the S/C's on Top Fuel Drag cars require 800+ HP just to turn them from what I read somewhere.

marlaman

what do you mean man? where would it go? on a big block or a rotary?

Matt

marlaman

damn that's nuts, i've never heard that before. I can turn over my engine with only one hand thankyouverymuch!

Matt

RoTa7

on the rotary

snub disphenoid

Right next to the engine, feeding directly into it.

RoTa7

ummm do someone have a pic???

introVert

go to www.camdensuperchargers.com

and check it out for yaself, bro.

SureShot

The bottom line - in general:
Turbo -
1) somewhat less expensive
2) more power potential (with a big intercooler)
3) torque comes in later
Supercharger -
1) a little more expensive
2) less peak power
3) more low end torque (the fun to drive factor)

zeromage428

i thought superchargers just give you a faster acceleration in the lower rpms

toothpicsk8

yes turbos i think are cooler because of blow off valve (i love the sound it makes) but theres the low rpm where theres a starv for power where as the super charger gives you that power and while the turbo guy is still trying to get his turbo gong ur already past him changing gears. or spinning some seriouse tire. plus i think the ware on the engine is a factor too right?? super charged has the same amount of boost all the time causing the engine to always run liek that. turbo the boost varies at rpm making the engine work harder soemtime and not as hard at others. maybe i dont know what im talking about but i think it made sence:P

Aaron Cake

iTrader: (1)

Yeah, so unless someone posts some real information, this topic is done.

RX7FROMCAL

PICS OF SUPERCHARGER , BAD *** BLOWER, LOVE THIS !!!!!!!!ITS GETTING DYNO THIS WEEK HOPEFULLY, WAITING FOR MY MECHANIC TO GET BACK FROM SEMA SHOW , IN VEGAS. AND NO THIS THREAD IS NOT DEAD, LOL

shiftnmadkwik

rxfromcali, has your belt been slipping? how tight did you make it when you set it up and did you set you idle pulley on the inner or the outer setting? i am getting some belt slip up top and my boost is really falling off. what do you think?>