'89 NA/Turbo Difference
02-07-04, 08:34 PM
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'89 NA/Turbo Difference
Guys,
I sold my '87 TII that I had restored about a year ago and bought a 2001 328i BMW
. I've got the project car bug again and i'm looking at an '89 NA that needs some work. What I would like to know is what components are different on the S5 TII and NA. The engine/turbo obviously but what about the tranny, diff, brakes, suspension?
Thanks for the help. I've been gone about a year but i'm back baby i'm back!
Todd
I sold my '87 TII that I had restored about a year ago and bought a 2001 328i BMW
. I've got the project car bug again and i'm looking at an '89 NA that needs some work. What I would like to know is what components are different on the S5 TII and NA. The engine/turbo obviously but what about the tranny, diff, brakes, suspension?Thanks for the help. I've been gone about a year but i'm back baby i'm back!
Todd
02-07-04, 08:44 PM
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hmmmm....I thought the S5s all had turbo suspensions and brakes. That info. makes me less enthusiastic about using an NA as a base for my project. I COULD give up the boost but not the handling/brakes.
Todd
Todd
02-07-04, 08:46 PM
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Well, I could be wrong. It does happen very occasionally. 
Do a Google search for "beyond the redline". On that site, there is a page which explains the changes year by year. As far as I know, only the GTUs shares the TII suspension and brakes (but NOT the drivetrain).
Do a Google search for "beyond the redline". On that site, there is a page which explains the changes year by year. As far as I know, only the GTUs shares the TII suspension and brakes (but NOT the drivetrain).
02-07-04, 08:48 PM
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All S5's use the same springs (except verts), and some use the same shocks, but those are really the only common suspension parts.
A base S5 (like a 89-90 GTU) does not even use the 4 piston vented front brakes...
A base S5 (like a 89-90 GTU) does not even use the 4 piston vented front brakes...
02-07-04, 09:11 PM
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Drivetrain is different, as Mazda designed a stronger drivetrain for the turbo. So that covers the flywheel, clutch, PP, transmission, driveshaft, rear diff, and rear axles (and rear hubs?).
-Ted
-Ted
02-07-04, 09:33 PM
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What about things like the suspension arms, roll bars, etc. . Since I'd probably have to change out all the bushings, shocks, struts, etc., anyway, I was just wondering how much cost there would be to make an NA handle like a turbo.
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02-07-04, 09:36 PM
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Suspension components are all the same, as long as we're not talking about a base model here.
Even with the base model, the only differences are the brakes, hubs, brake lines, and sway bars. Almost everything else is identical.
-Ted
Even with the base model, the only differences are the brakes, hubs, brake lines, and sway bars. Almost everything else is identical.
-Ted
02-08-04, 07:44 AM
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Originally posted by Dan H
NA outhandles turbo....if you got a GTUS.
NA outhandles turbo....if you got a GTUS.
Todd
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