anyone running a tubular manifold on a daily driver?

[Endz0r]

i am wondering if a tubular manifold is a good idea for a daily driver, or if i should just go with a cast exhaust manifold?

 

[danielbui]

a ported 2g is sufficient enough for 400+ hp.

 

[boost05]

I may very soon, I have a ported 2g right now heading for 400whp so I think im good, I might just stick with the 2g ported. my car is totally daily driven, snow,rain,heat,cold everything my only car .

 

[danielbui]

i think some people forget about heat soak and cracking of the runners due to excessive heat and turbulance under the hood and concentrate on there power outputs. granted nothing wrong with it but why spend the money when the answer is in front of you. change it if your turbo calls for it.

 

[v8killerr1]

i have a dnp and i have no problems. Honestly i would just go with a cast manifold because there are alot cheaper.

 

[danielbui]

Yup!

 

[DWAIST]

"if it ain't cast, it won't last" :laugh:

my sfp cracked so many times i can't even remember how many times i had that "pos" rewelded!
my car is daily driven and i decided to get the evoIII manifold!

 

[NewB2dsm]

i am wondering if a tubular manifold is a good idea for a daily driver, or if i should just go with a cast exhaust manifold?

What makes you think you need a tubular?

People are running 9's on a ported 2g. Now you have the evo and the slowboy cast manifolds. There is no reason to go with a tubular unless you want the wastegate coming from the manifold or you are getting a t3 or t4 flange. But in that case you wouldnt be asking this question. So get a 2g, or a evo is my vote.

 

[DSMJim]

Turbonetics cast manifold is also a good choice. Takes some porting to get it nice but thats it. It comes with the wastegate off the runner already which is nice if you don't wanna run an internal gate turbo.

 

[joeracer321]

Tubular manifolds are definately more prone to cracking than a cast manifold if not done correctly, but the tubular manifold offers better performance than the cast manifold.

 

[pboglio]

I wonder if you can get some good pulse tuning in the exhaust manifold header on a turbo car like they do on N/A applications. If so, then adjusting the turbo header runner length and diameter could give you either some extra kick down low. The stock manifold can only do so much, the runners are 6" long or so. I've heard people picking up some spool with tubular headers. I'd stick with a cast manifold for the street though.

 

[joeracer321]

Most headers, even for the turbo cars are tuned to make more power, that is why they sell. If they made no improvement over a manifold, then why would anyone buy one. It is the same principal as the N/A motors. Look at my build thread :
You can see how this design would make more power.

 

[pboglio]

Most headers, even for the turbo cars are tuned to make more power, that is why they sell. If they made no improvement over a manifold, then why would anyone buy one. It is the same principal as the N/A motors. Look at my build thread :
You can see how this design would make more power.

I posed pulse tuning as a question because a turbo car runs with a radically different valve timing profile, lower compression ratio, higher EGT and backpressure which alters the speed of sound, and has a turbine wheel spinning at 100,000-150,000 rpm chopping up the airflow. This doesn't present a setup that can be exactly equated with an N/A setup.

I'll pose another question, can you tell by eye whether one short runner intake manifold makes more power than another? I mean they all look alike, they must all make a ton more power than stock. An intake runner diameter off by +/- .25" could actually knock out a LOT of torque everywhere, even with short length runners. The same maybe true for a turbo exhaust manifold, how can you tell by looking?

 

[BoostinAWD]

Most headers, even for the turbo cars are tuned to make more power, that is why they sell. If they made no improvement over a manifold, then why would anyone buy one. It is the same principal as the N/A motors. Look at my build thread :
You can see how this design would make more power.

that manifold is the biggest pos I've ever seen! I bought one for $20 for a reason. I will bet my life that it wont make more power than a ported 2g manifold. Infact thats probably the best way to decrease your top end power than anything else
Measure the inside diameter at the FLANGE (port side) and so forth with a stock 2g and you will see where I'm coming from. :laugh:

 

[joeracer321]

that manifold is the biggest pos I've ever seen! I bought one for $20 for a reason. I will bet my life that it wont make more power than a ported 2g manifold. Infact thats probably the best way to decrease your top end power than anything else
Measure the inside diameter at the FLANGE (port side) and so forth with a stock 2g and you will see where I'm coming from. :laugh:

I went over this with someone before already. My pacesetter header matches perfectly with the ports on the head. The only bad thing I can say about it is the crummy gasket. Also the collector is for a 6cm inlet, but there is enough meat there to port it out to 7cm.

 

[2GDSM]

notice significant gains with a ported 2g manifold?

 

[BoostinAWD]

Measure it again, also notice the nice taper down at the tubing.

 

[2.4 turbo Hyped]

Im running the newer version of south florida performance t3 manifold. It has some very thick tube steel. I want to say its 6 gauge mild steel. I havent had any problems with it cracking for the last 3 months I have been using it. Sean

 

[joeracer321]

Um probably not six gauge, maybe 16 gauge which is pretty heavy duty stuff. It is what most exhaust systems are made out of.

 

[anconover]

16 gauge i would NOT consider heavy stuff. SS exhaust systems are made with usually 18, and aluminumized with 14-16gauge. For a manifold, its more than likely that its 6-8gauge tubing.

 

[2.4 turbo Hyped]

Um probably not six gauge, maybe 16 gauge which is pretty heavy duty stuff. It is what most exhaust systems are made out of.

Im pretty sure its 6 gauge its 1/4 inch thick. Correct me if Im wrong though.

 

[My96AWD]

i was till it cracked for the second time, now i have an evo mani on it.

 

[nanokpsi]

Measure it again, also notice the nice taper down at the tubing.

Also, take a look at the collector. Compare that to all of the rest of the turbo manifolds on the market and on race cars. Do you see anything designed like that? You wonder why its so cheap? It has to be the worst design I have ever seen. Go ahead and tout "my pacesetter is the best" if you really want to. Just don't try to convince anyone of it becasue everyone else already knows its a hunk of shit. Thx, please drive through.


As for the tubular vs cast, its really just a cost benefit deal. I am sure there is some power to be had but is it worth the added expense and inevitable cracking? I guess it dep[ends on how much $$ you have

 

[2.4 turbo Hyped]

I had a pacesetter one at one time. It is made with 16 gauge mild steel. Mine cracked at the collector 3 times before it made an expeditious trip into the willamette river. Cheap garbage crapola.

 

[Da Dymer]

while i was running my hahn race craft super 20g, i used a ported evo manifold from road race engineering, and it worked great...its noticebaly bigger than a 2g, and not too much more expensive....now im running a magnus motorsports tubular header with my gt35r 1.06a/r and that runs great too....spool up was great on both of the manifolds, and neither one ever cracked......but the tubular ones look so nice