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Old 02-11-2007, 07:27 PM   #1 (permalink)
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Question n/a to turbo gauges...

I am finally going to be starting my turbo swap soon, and have a question. Should I swap out the gauge cluster too? I know it has a boost gauge built in, but I'm gonna have an aftermarket one anyway, so that's not a big deal. Is there a difference in red-line or anything like that? I think the speedo goes to 160 instead of 140, but I don't plan on using that part of the speedo, so no big deal.

So, should I bother with it or not? Thanks for any input.

Andy.
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Old 02-11-2007, 07:33 PM   #2 (permalink)
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Sorry for the double post, but I remembered another question. The donor car has no exhaust on it. I have a straight through can muffler on my n/a. I think it's 2 1/2 inch diameter. Will that be okay to use with the turbo motor until I can afford a good exhaust?
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Old 02-11-2007, 07:38 PM   #3 (permalink)
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The boost gauge is useless... I wouldn't worry about doing a cluster swap. Your exhaust wont bolt up... you may want to look into getting a new one.
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Old 02-11-2007, 07:52 PM   #4 (permalink)
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Well, the exhaust is actually still on the donor, but the stock muffler is pretty jacked up. Could they bolt up the pipe and fab the rest down to the muffler? That's what Midas did with my n/a. I'm more concerned with the muffler being too small. But I really don't know a whole lot about this stuff yet, so I could be wrong.
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Old 02-11-2007, 07:54 PM   #5 (permalink)
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get an aftermarket exhaust, and depending on emissions where you are, you should get an aftermarket down pipe and b pipe. the stock ones are so restrictive. its the cat, and it's placement, along with the undersized piping and the superfluous amount and angle of bends.
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Old 02-11-2007, 07:59 PM   #6 (permalink)
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But for now, will I be okay?
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Old 02-11-2007, 10:16 PM   #7 (permalink)
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your question is if you custom aftermartket exhaust will bolt up to the turbo swap...?

the answer is yes... and it will be fine for now...

if it is smaller than the stock turbo set up... it will reduce HP but increase torque...

and as far as the cluster it depends on whether you have a speedo cable or VSS...
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Old 02-11-2007, 10:38 PM   #8 (permalink)
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How would I know that? Both cars are 92s.
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Old 02-11-2007, 11:22 PM   #9 (permalink)
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hmmm..... i'm not sure...

explain why you don't need "that part" of the speedo... cause there is only one part.
same thing that drives the odometer drive the speedometer.

now they're two different drives. a cable or a VSS. some VSS have two parts. one to the gauge other to the ECU.
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Old 02-11-2007, 11:33 PM   #10 (permalink)
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Quote:
Originally Posted by tHa kNiGHt FaLL
your question is if you custom aftermartket exhaust will bolt up to the turbo swap...?

the answer is yes... and it will be fine for now...

if it is smaller than the stock turbo set up... it will reduce HP but increase torque...

and as far as the cluster it depends on whether you have a speedo cable or VSS...

As previously posted.... the answer is NOOO! NA exhausts are several inches longer than turbo exhausts.
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Old 02-11-2007, 11:45 PM   #11 (permalink)
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Quote:
Originally Posted by ishcoleobo
As previously posted.... the answer is NOOO! NA exhausts are several inches longer than turbo exhausts.
how do you figure....?

i have a trust exhaust for a turbo model on my car... my car is N/A. i had fitment issues but nothing being too long or too short

Last edited by tHa kNiGHt FaLL; 02-11-2007 at 11:47 PM.
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Old 02-11-2007, 11:59 PM   #12 (permalink)
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I meant that I won't be going 140, let alone 160. That's why I won't need that part of the speedo. Anything more than 120 or so is really asking for trouble.

Ishcoleobo, it isn't a stock exhaust on my n/a. It's a universal can muffler. It's about 18 inches long or so. When I had it put on, they just custom fit a pipe from the flange to the muffler. I'm thinking they could just do the same thing with the turbo motor. My concern was if the diameter was too small.
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Old 02-12-2007, 12:10 AM   #13 (permalink)
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Quote:
Originally Posted by tHa kNiGHt FaLL
how do you figure....?

i have a trust exhaust for a turbo model on my car... my car is N/A. i had fitment issues but nothing being too long or too short
The exhaust you have directly replaces the muffler... which you can swap on both cars. The only difference between the Greddy NA and Turbo model... is the pipe diameter. Using an NA B-pipe..... or any NA exhaust setup that actually replaces the restrictive b-pipe.... will not work on a turbo.... or vice versa.

Don't mind that I've owned 4 NA's and 2 Turbos..... and prototyped parts on both models.

Or you can just check the BGB and see the obvious difference between the NA and Turbo b-pipes.
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Old 02-12-2007, 12:39 AM   #14 (permalink)
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Quote:
Originally Posted by ishcoleobo

Or you can just check the BGB and see the obvious difference between the NA and Turbo b-pipes.
what are you refering to as "b" pipe...? the pipe in the picture, i call an intermediate pipe.

which on both a 5S-FE and a 3SGTE bolt up to the catalyst at the same spot... the angles are slightly differently but the length looks about the same to me.

the different angles as you can clearly see in the picture you posted... is where i had fitment issues... from the cat-back system, not muffler... that i installed myself.


and the only thing he seems to be concerned about is diameter... which will effect performance of his car but won't damage anything aslong as it fits... because its custom piping i have no idea what is looks like.

Last edited by tHa kNiGHt FaLL; 02-12-2007 at 01:07 AM.
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Old 02-12-2007, 12:53 AM   #15 (permalink)
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Quote:
Originally Posted by andyb16
I meant that I won't be going 140, let alone 160. That's why I won't need that part of the speedo. Anything more than 120 or so is really asking for trouble.

Ishcoleobo, it isn't a stock exhaust on my n/a. It's a universal can muffler. It's about 18 inches long or so. When I had it put on, they just custom fit a pipe from the flange to the muffler. I'm thinking they could just do the same thing with the turbo motor. My concern was if the diameter was too small.
you need to consider that 80 mph for the S54 transmission isn't gonna be the same for the E153. they are geared differently and have different speeds for each gear.... top speed isn't the only thing affected.
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