exhaust issue..

[turbosprentice]

i'm quiet new to 3000gt's.. since i have only owned a '89 supra, i'm wondering if it was possible for a 3000gt base model to rumble. is this possible to make my 3000gt rumble? if so what type of parts or tune up parts do i need? i know that vr4 could rumble since it's turbo etc..

[AutostradaVR4]

getting rid of all the cats/pre cats should give a deeper tone...but you may lose low end torque due to backpressure loss.
See if you can find sound clips for different mufflers on the web.

[turbosprentice]

Originally Posted by BlinkRA182

getting rid of all the cats/pre cats should give a deeper tone...but you may lose low end torque due to backpressure loss.
See if you can find sound clips for different mufflers on the web.

alright.. thanks for the advice, i'll check it out, and see what happens.

[Nesryn]

You would need to put different mufflers on it if you wanted a more aggressive sound. My SL exhaust was pretty tame so I can't see the base being any different.

[turbosprentice]

Originally Posted by Nesryn

You would need to put different mufflers on it if you wanted a more aggressive sound. My SL exhaust was pretty tame so I can't see the base being any different.

I have tried a few different exhaust.. but what I'm looking for is trying to make my base model gt to rumble, like the subaru's and such. my supra has the rumbleing sound, but I don't want to waste any more money trying to figure out how to make my gt rumbles so that is why im asking questions here, i want it to rumble similar to a harley motorcycle. I've seen and heard the vr-4 rumbles but i don't know about the base model, and what type of mods i would need to make it sound like that.

[Stealthee]

Exhaust alone doesnt make a car rumble. Think about it, are you going to get a Civic to rumble like an old muscle car because you put a dynomax muffler on it? No. Its still going to sound like a weedwacker on steroids. Theres so much that goes into how an exhaust sounds. A 3000gt DOHC will at best have an "exotic" sound to it. Its never going to rumble. The SOHC actually has more of a "muscle car" sound to it but its never going to sound like a V8. If you want name brand and a decent sound buy a Borla TT catback.

[turbosprentice]

Originally Posted by Stealthee

Exhaust alone doesnt make a car rumble. Think about it, are you going to get a Civic to rumble like an old muscle car because you put a dynomax muffler on it? No. Its still going to sound like a weedwacker on steroids. Theres so much that goes into how an exhaust sounds. A 3000gt DOHC will at best have an "exotic" sound to it. Its never going to rumble. The SOHC actually has more of a "muscle car" sound to it but its never going to sound like a V8. If you want name brand and a decent sound buy a Borla TT catback.

What is the point of getting a Borla TT catback when my gt is a N/A? I don't just have a muffler on my gt, it has a borla catback (not a TT catback), random tech high flow catalytic converter, and a custom downpipe, what I'm think of getting next is a header. I have heard a few N/A 3000gt rumble similar to a v8 before when I went autocrossing, but autocrossing doesn't start yet, or at least not over here. I'm thinking the header might make a difference, I'm not aiming for a v8 sound, just something similar that has the rumbleing.

[Stealthee]

There will be no rumble. Its not going to happen.

Also the Borla TT catback is larger and sounds wayyyyyy better than the Borla NA catback. The Borla NA catback is very tame.

[turbosprentice]

Originally Posted by Stealthee

There will be no rumble. Its not going to happen.

Also the Borla TT catback is larger and sounds wayyyyyy better than the Borla NA catback. The Borla NA catback is very tame.

So you're saying that there is no difference if my gt was a N/A or not, and I could install a Borla TT catback which is for twin turbo and not just use my Borla N/A catback?

[Stealthee]

Exactly. The Borla TT will bolt directly up.

[turbosprentice]

Originally Posted by Stealthee

Exactly. The Borla TT will bolt directly up.

So, what will be the main difference from using a N/A borla catback then using a Borla TT catback? I want to know this before I start to order it. So be specific about the difference. I've always used a N/A catback for a N/A car and a TT catback for a TT car. I've never tried a TT catback with a N/A car before.

[Stealthee]

TT catback has larger diameter piping and really no mufflers, just two resonators.

[JeenyusVR4]

I bought my cat back exaust for my 1993 SL on DN Performance. This system comes with all 3" piping and two resonators. This made my car rumble pretty well and the best part is that it is the same system for the N/A and TT so it will fit your car. I will be careful about losing low end torque though due to not enought back pressure as BlinkRA182 said. I then bought a VR-4 and bought the TT borla exhaust for it and that comes with the srtight piece of the system at a 3" pipe and splits into 2.5" pipes then to two SMALL resonators with intercooled tips. The borla isn't as loud but it definately gets the job done and also maintains a good amount of backpressure. So its all your choice but if your just looking for rumble not about the lose of low end torque go with DN Performance Cat back system.

[Stealthee]

Turbos actually quiet the exhaust. A NA is actually going to be louder than a TT with identical exhaist set ups.

[turbosprentice]

I have another question, it might sound stupid but oh well, I want to know, so correct me if I'm wrong, is this the order that the exhaust downpipe etc.. goes like. So it's cat back exhaust, then a custom downpipe, a high flow catalytic converter, then the header right? correct me if I'm wrong, I'm not sure, I'm quiet new too all this mods/tuning etc...