2.25 or 2.5 exhaust?
#1
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2.25 or 2.5 exhaust?
Hello all,
I'm planing on (assembling the parts as we speak) doing a mild turbo on my 94 with room for upgrades. To start with I'll have a GT25R using 330cc injectors, EMB, with no IC (initially) running ~6Lb boost. I want to re-do the exhaust at about the same time that I have the DP made and I'm wondering if going to a 2.25" full exhaust will be enough, or should I go straight to a 2.5". I won't be going to a 3"....that's just too much for me.
One more thing; I'm looking at the ATC group buy and I'm wondering if the HDSS would be a good choice for this setup. I don't want to increase the clutch peddle force too much as this a daily driver and not a race setup.
Thanks again.
Tony
I'm planing on (assembling the parts as we speak) doing a mild turbo on my 94 with room for upgrades. To start with I'll have a GT25R using 330cc injectors, EMB, with no IC (initially) running ~6Lb boost. I want to re-do the exhaust at about the same time that I have the DP made and I'm wondering if going to a 2.25" full exhaust will be enough, or should I go straight to a 2.5". I won't be going to a 3"....that's just too much for me.
One more thing; I'm looking at the ATC group buy and I'm wondering if the HDSS would be a good choice for this setup. I don't want to increase the clutch peddle force too much as this a daily driver and not a race setup.
Thanks again.
Tony
#11
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OK, so I know that I'm going to go with the HD plate. The question is what is the difference between the SS plate and the 6 puck G6 plate. Again, remember that this is a daily driver. Will I (and my wife) be able to live with the HDG6?
Tony
Tony
#12
Street disc has much smoother engagement. The 6 puck is like an on-off switch engagement wise. Your wife would appreciate the street disc much more. If you plan on making allot of power, the ACT XT with a street disc works well, that's what I have and there isn't much extra pedal pressure.
#16
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This is exactly what I was trying to avoid. This is not an auto-x car. This is a daily driver that my wife will occasionally drive. Moving to a 3" exhaust is not an option.....no matter how "retarded" YOU think it is.
Bryce, Thanks for the input on the clutch. HDSS it is.
Tony
Bryce, Thanks for the input on the clutch. HDSS it is.
Tony
#17
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This is exactly what I was trying to avoid. This is not an auto-x car. This is a daily driver that my wife will occasionally drive. Moving to a 3" exhaust is not an option.....no matter how "retarded" YOU think it is.
Bryce, Thanks for the input on the clutch. HDSS it is.
Tony
Bryce, Thanks for the input on the clutch. HDSS it is.
Tony
#18
This is exactly what I was trying to avoid. This is not an auto-x car. This is a daily driver that my wife will occasionally drive. Moving to a 3" exhaust is not an option.....no matter how "retarded" YOU think it is.
Bryce, Thanks for the input on the clutch. HDSS it is.
Tony
Bryce, Thanks for the input on the clutch. HDSS it is.
Tony
accept maybe the extra hp. True story my miata was quiter open DP than before the turbo, on a 2.5 inch exhaust. My 2.5 inch exhaust post turbo is so quite i can sneak up on people, almost as easily as stock. We aren't racers here persay but we are about the effeceincy and feel you would be leaving alot on the table with a just limiting yourself to an arbitrary size. Esp since a custom setup will cost the same with 3 inch as it would with 1 inch.
#19
I finished my new exhaust yesterday.
It consists on the following from Summit racing:
2.5" to 3" flowmaster venturi
4' of 3" pipe
2 3" mandrel bend U turns
3/8" stainless tubing for hangers
18" long Magnaflow muffler (straight through Center-offset) 3"
3" Magnaflow tip.
It costed $250 shipped for materials but I bought 3 U turns and 1 45 degree turn. I didnt use 1 U and the 45, so it would be $60 less ~ $200.
It looks awesome, it was tricky to fit it on the tunel without going too low and then clearing the diff but after 6 hours of work we made it look awesome. To me is perfect and the welds where made with MIG by a certified welder, (my uncle) lol.
LOUDNESS ---NOT it sounds the same as my Entuzha 2.25" with a cat resonator and muffler, why? I dont know. BUt it does sound a lot meaner, like a rally car.
I will post pictures for you guys tonight or tomorrow.
It consists on the following from Summit racing:
2.5" to 3" flowmaster venturi
4' of 3" pipe
2 3" mandrel bend U turns
3/8" stainless tubing for hangers
18" long Magnaflow muffler (straight through Center-offset) 3"
3" Magnaflow tip.
It costed $250 shipped for materials but I bought 3 U turns and 1 45 degree turn. I didnt use 1 U and the 45, so it would be $60 less ~ $200.
It looks awesome, it was tricky to fit it on the tunel without going too low and then clearing the diff but after 6 hours of work we made it look awesome. To me is perfect and the welds where made with MIG by a certified welder, (my uncle) lol.
LOUDNESS ---NOT it sounds the same as my Entuzha 2.25" with a cat resonator and muffler, why? I dont know. BUt it does sound a lot meaner, like a rally car.
I will post pictures for you guys tonight or tomorrow.
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