TurBOOOH!!! vs. SupAAAH!!!! - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 05-28-2003, 12:17 AM   #11
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Quote:
Originally Posted by jwikoff99
How about converting an L67 from roots to centrifigul? The thought has crossed my mind before.
The time to do that would be when you have to replace the SC anyway. Still the price would be around 4000.00 and a replacement roots would be cheaper. I donít see most buyers (weekend warriors) buying turbos or centrifugal Sc'*. I figure the best weekend warrior combo is a rebuilt Sc with a Nos or water injection. In California and other states with big emission laws it is easier to go with a stock unit with a easy power adder like Nos or water injection. I am working on a quick connect/disconnect centrifugal unit but there is really not enough demand for it so ití* more of an idea.
Once we get the store cleaned up we will be carbing centrifugal units in cali but that takes alot of money and time.

Ty
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Old 05-28-2003, 03:52 PM   #12
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A small turbo will also have very little lag but the bigger you go the more power but more lag. It all depends on where your powerband is and a 3800 is in low rpm hence all the torque. It would be smart to just modify the stock supercharger on the ssei but it'* up to the budget and time you want to put into the project.
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Old 05-28-2003, 05:53 PM   #13
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aren't the psi possibilities way higher with a turbo? i just want a boost controller
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Old 05-28-2003, 07:16 PM   #14
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Depends on the turbo you are using. The 1989 Shelby CSX and 1990 Daytona CS and Shelby and 1990 Shadow CS and ES came with an optional VNT turbo. Virtually no lag time. The problem with them was they were so small on them that overboost was hit quite often and then for those that did the exhaust really had overboost problems unles the computer was reprogrammed. Even with mods max efficient boost was in the 15-18 lb range (not much for a turbo -I used to run 20 lbs with my original Mitsu turbo on my Lebaron, and now have a Garret turbo capable of an efficient 25 psi with the Indy intercooler)
Not to mention they couldn't really be bled.
They were extremely quick off the line. I rode in my friends old 1990 Shadow CS VNT with custom computer, +40% injectors, exhaust, intake, big valve head, MP S60 cam, Venolia piston'*, etc... Needless to say one hell of a ride. He could run 0-80 about as fast as the average supercharged Bonneville can run 0-40 or maybe 50. He took it to the track a few times and best times were in the high 12'* which are good, but not all too impressive in the Shelby Dodge world where 1mid to high 11'* are a fairly common occurence. Once he switched a stock non-Vnt Garret in he was able to drop 3/10'* of a second from his e.t., but his 60' gained .2
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Old 05-28-2003, 08:22 PM   #15
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I got 3 turbos which should I use? I have a Mitsubishi a Chrysler and I have a Mazda. What would be the best they are all essetially the same size?
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Old 05-28-2003, 09:23 PM   #16
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Quote:
Originally Posted by willwren
Why REPLACE the roots, when you can ADD a Turbo?
That'* not a bad idea.. but obviously you'll need an intercooler for turbo.. but then can go with a bigger turbo for more boost @ higher RPM'* ( and have stock to pick up the lag ). But how would you run the intake so the overboost won't dump or use more of the turbo'* boost at high RPM? That I think maybe really interesting of a route that I may consider.

Since NOS is now ILLEGAL in Canada ( whereas before you just had to have a green stickie on your window that says you're carryin high flammable and explosive pressurized stuff.. ( don't remember how it looks like now ) and must not have the tube connected to the bottle on the street. to allow you to carry it since it'* not illegal to use on the strip.. hee hee.. ).

Humm.. but with the mention of Water injection.. I may have to look that up to see if it'* illegal or not on Ontario.
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Old 05-28-2003, 09:31 PM   #17
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!?!?!?!?!?!!? NOS is Illegal In Ontario?!!?! Gah I go there all the time and I guess Ill have to go with a turbo instead of NOS cuz I love the Canadians and also the Casinos in Sarnia
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Old 05-28-2003, 09:58 PM   #18
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wow!!! thanks guys! I'm not actually adding a turbo or super any time soon i was just wondering for general knowledge.

One other thing: I don't think I have ever seen a 4-cyl car with a superchager. Can they only be installed on larger engines? (engines that actually more liters than a jug of sprite)

BTW: I read a cool comparison test article on some big sedans with turbos and supers. http://www.caranddriver.com/article....rticle_id=6567
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Old 05-29-2003, 12:42 AM   #19
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A co-worker of mine installed an Eaton M45 blower on a 4-cylinder Jetta. I can still romp his *** anywhere, any time. Like I tell him, no matter what he does to it "It'* still just a VW". Really pisses him off.
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Old 05-29-2003, 12:42 AM   #20
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Go try out www.jacksonracing.com

They makre roots style SC'* for Hondas and Miatas.

Turbos generaly just make more since for 4 cylinder motors cause they can more easliy take advantage of the high reving chacteristics of the motor.

Also go check out a new MINI Cooper *. They have a 1.6 liter 4 cylinder engine and use a smaller version, M42??? i think, of the eaton SC we have on our cars.
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