is it really needed for when i turbo my z?
No dont do 3" you will hate it... i got a 3" with my turbo kit and it clunks on the rear axle every bump and i have only droped my car like 1" at most.... im switching to a 2.5" exhaust...
The First Twin Charged jbody
blue car (R.I.P) - 240whp @7psi..
silver car - 305whp 315lbs.tq @15psi (91 Octane) or 420whp & 425lbs.TQ @20psi (94 octane+Alcohol Injection)
All dynos run on a Mustang dyno
im rebuilding my turbo kit with a larger turbo and im gonna do 3"
*2012 mazdaspeed3*
Josh F wrote:No dont do 3" you will hate it... i got a 3" with my turbo kit and it clunks on the rear axle every bump and i have only droped my car like 1" at most.... im switching to a 2.5" exhaust...
Then you did something wrong. I have 3in from the subframe back and the only time it clunks at all is when I have to go over a speedbump or hit a pothole. I love my full 3in exhaust though. Opened the low end soooo much over having just the dump pipe off the cat.
As for a 3 inch exhaust being REQUIRED. No. It's not required at all. You will see benefits with it as your HP numbers climb but for most people who just daily drive the car and don't go out racing it competitively every weekend, like me, a 2.5 inch exhaust will be fine.
I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
Team Vision Racing (aka hypsy) wrote:Josh F wrote:No dont do 3" you will hate it... i got a 3" with my turbo kit and it clunks on the rear axle every bump and i have only droped my car like 1" at most.... im switching to a 2.5" exhaust...
Then you did something wrong. I have 3in from the subframe back and the only time it clunks at all is when I have to go over a speedbump or hit a pothole. I love my full 3in exhaust though. Opened the low end soooo much over having just the dump pipe off the cat.
As for a 3 inch exhaust being REQUIRED. No. It's not required at all. You will see benefits with it as your HP numbers climb but for most people who just daily drive the car and don't go out racing it competitively every weekend, like me, a 2.5 inch exhaust will be fine.
the car that i am putting the turbo on isn't a daily driver. its my project car.
well it wasnt me that made it wrong... it was DerekZ24 on this site who made it... and it does not surprise me that its done wrong... his entire kit i bought was $hit!
hypsy do you have any pics of yours? so i can see where he went wrong? i would like to keep it just i hate this clunking
The First Twin Charged jbody
blue car (R.I.P) - 240whp @7psi..
silver car - 305whp 315lbs.tq @15psi (91 Octane) or 420whp & 425lbs.TQ @20psi (94 octane+Alcohol Injection)
All dynos run on a Mustang dyno
so basicly 2.5 or 2.25 will be good?
I have 3" exhaust on mine and have yet to hit anything with it
Jason
99 Z24
Racers Edge
Johnny Mack Turbo Systems
Engineered Performance
2.25 is def to small.
Go with 2.5' mandrel bent, and you should be a-okay ...
I love my 3" side exit........ it's loud, and it that turbo to spool so damn fast, I love it.
as of right now, no cat, or muffler, but I will be adding a 3" magnaflow hi-flow cat soon enough.
It's awesome.
Lee
JDM Civic Hatch
Status: Parting Out Turbo Kit....
14.224 @ 102.01MPH @ 5.5psi.... 2.3 60'
Next: Civic JDM B16a2 w/GSR LSD Turbo - Goal 300whp 1400lbs...
WOW thats some quality work man!
nice work boosted2point4. what are you doing with your old exhaust?
now that is a nice 3in exhaust...i think ill take that over mine even
I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
thanks, the other exhaust on the floor i sold to my little bro but had it on my car b4 cause i ran out of time b4 the bash and iim not just getting around to make the new exhaust
R.I.P. Brian Klocke, you will never be forgotten
My exhaust from CustomTubes is teh bomb.. doesn't hit the axle and is one peice from the flexpipe to the axle bend...and its stainless... but so heavy!!
Check out my Part Out List!! Great Prices !!
http://www.j-body.org/classifieds/detail/52925/
Josh F wrote:well it wasnt me that made it wrong... it was DerekZ24 on this site who made it... and it does not surprise me that its done wrong... his entire kit i bought was $hit!
Stop blaming others for the problems on your car. If its not right, fix it or make it yourself to begin with.
LarryMartin830, the bigger the exhaust the faster the turbo will spool and the more hp your motor will make. Smaller exhaust will add lag and not yeild as much power. Whether or not you
need 3" exhaust really depends on how much power you plan to be making. A good rule of thumb for a turbo motor exhaust is 1" for every 100whp, in other words a 200whp needs at least 2" exhaust, 250whp needs 2.5", 300whp needs 3" ect.
I have a full 3" exhaust system on my car with a 2.3" rear drop and have no issues. Hope that helps.
- 93 mph in the 1/8 mile
Member of J-Body Of Michigan.
Nice exhaust,
it won't hit the axle........
Here is mine......
SIDE EXIT.......
It's loud, and SKILZ is right....... larger piping allows the turbo to spool faster........... whether you NEED it or not is up to you, HP goals should be kept in mind !!!
Lee
JDM Civic Hatch
Status: Parting Out Turbo Kit....
14.224 @ 102.01MPH @ 5.5psi.... 2.3 60'
Next: Civic JDM B16a2 w/GSR LSD Turbo - Goal 300whp 1400lbs...
I had a side pipe for almost 4 months. After that it got too annoying and I finished off the exhaust. Pulled so much harder after that. It's all about preference in this case though.
I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
Hey Boostedcav...what type of resonator is that you have there. I see alot of peope with that one. I think im going 3" when i put my turbo on in about 2 weeks. How many mendrel bends am i going to need to order to do a full exhaust on an ecotec because i have a 3" down pipe and flex tube but i know on the ecotecs the only other bends are the ones going over the axle so do you think if i order a U-J bend (which is 2 90 degree bends and a 45 plus like a 10" leg on it) it would be enough?
Team Vision Racing (aka hypsy) wrote:I had a side pipe for almost 4 months. After that it got too annoying and I finished off the exhaust. Pulled so much harder after that. It's all about preference in this case though.
Really ???? pulled harder ???
See I bought more piping, and a 3" crush bent 30 degree tip so it looks stock, I was going to add a cat, so it is like a STOCKER exhaust.
did you add a cat ???? or just finish it out the back ??
thanks
Blue Splash wrote:Hey Boostedcav...what type of resonator is that you have there. I see alot of peope with that one. I think im going 3" when i put my turbo on in about 2 weeks. How many mendrel bends am i going to need to order to do a full exhaust on an ecotec because i have a 3" down pipe and flex tube but i know on the ecotecs the only other bends are the ones going over the axle so do you think if i order a U-J bend (which is 2 90 degree bends and a 45 plus like a 10" leg on it) it would be enough?
it's a 25" magnaflow Res......... adding a cat infront of it, and finishing it out the back....
don't get me wrong I LOVE hearing the turbo spool, it's just bait as hell......... I drive by a police officer, I have to drop in the clutch so it quiets up. haha
Lee
JDM Civic Hatch
Status: Parting Out Turbo Kit....
14.224 @ 102.01MPH @ 5.5psi.... 2.3 60'
Next: Civic JDM B16a2 w/GSR LSD Turbo - Goal 300whp 1400lbs...
yeah id like to know how many bends you needed and what degree's im gonna do a large turbo come summer and i want 3" to the back not to the side
*2012 mazdaspeed3*
Respooled2k3 wrote:yeah id like to know how many bends you needed and what degree's im gonna do a large turbo come summer and i want 3" to the back not to the side
You can take a peek under mine sometime. You know you got fairly unlimited access to my car...FAIRLY
I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
