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exhaust manifold designs - 6G Celicas Forums

Topic #67088 30 posts Started by easternpiro1
easternpiro1
#1
hey all, been researching good designs for an exhaust manifold. if some of you dont know, there have been issues with my exhaust manifold from day one and essentially i wasnt happy with its design and quality, (is currently leaking from the flange near the turbo, and wastegate off one runner)so like lagos says: do half assed once do it right the 2nd time.

i will stop there or else i will start a rant. but anyway, anybody got some decent design pics? i want a tubular equal length header , of course with w/g coming from where all 4 runners converge. I got a few ideas from tweak and Pitcelica and a few others.

here's some that i like:

<<(thanks pit)








here is a pic of how its currently set up,



This post has been edited by easternpiro1: Apr 29, 2009 - 10:51 AM
QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM)You want power but have no money. That's a problem.Cheap. Reliable. Fast. Pick two.
playr158
#2


the shorter the runners the better

This post has been edited by playr158: Apr 29, 2009 - 12:45 PM
easternpiro1
#3
what material would you suggest? (gauge?) i was told several different things, im narrowing it down. and also, im not very confident in this guy's welding, since they screwed up the first time by sending it off to someone, theyre doing it in house, and i know they half ass alot, so i will be viewing pictures of his work soon.
QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM)You want power but have no money. That's a problem.Cheap. Reliable. Fast. Pick two.
lagos
#4
Why dont you grab a stock 3rd gen manifold, and use a t3 adapter? Thats going to be more reliable than any tubular manifold (unless you spend big money on one).
15PSI - 30MPG - Megasquirt Tuned
RUNNIN-LOW
#5
yeah i agree with lagos here is what mines look like

cleanest and best way i think biggrin.gif


with the heat shield
bccentaur3
#6
Yeah, I have a 3rd gen 3s exhaust manifold for sale right now..
98 Celica gt red- totaled deer94 Celica st black DD (bad weather beater)- totaled deer95 Celica gt silver- chassis sold88 Celica All-Trac (Burned to a crisp)94 Celica gt white (sold)In need of a rust free chassis!!!!
presure2
#7
x3
Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered
alltracman78
#8
I think you should separate all 4 runners and make a flange for each of them.
This way you can run 4 turbos = 4X the boost.

Can't beat that.
presure2
#9
>
QUOTE (alltracman78 @ Apr 29, 2009 - 3:05 PM) *
>I think you should separate all 4 runners and make a flange for each of them.
This way you can run 4 turbos = 4X the boost.

Can't beat that.

FTW!!!! laugh.gif laugh.gif
Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered
TRDGT4
#10
here's a couple of pics of my manifold they are all equal length and run onto one before the collector could be made into twin scroll easy as





_______________May COTM 2011_______________
paul_gt4
#12
mines consists of a standard ST205 manifold (not WRC, my car is the WRC spec though) ported and polished as far as it can safely go, custom T3 to T4 wastegate flange for 60mm wastegate, custom down pipe into HKS supersilent system. Pics will come shortly
olaHalo
#13
>
QUOTE (TRDGT4 @ Apr 29, 2009 - 4:50 PM) *
>here's a couple of pics of my manifold they are all equal length and run onto one before the collector could be made into twin scroll easy as


This looks amazing. i love it
i much prefer equal lenghts



this is my scion tC
>
QUOTE (lagos @ Apr 29, 2009 - 3:02 PM) *
>Why dont you grab a stock 3rd gen manifold, and use a t3 adapter? Thats going to be more reliable than any tubular manifold (unless you spend big money on one).

im curious of how a log manifold will be more reliable than a equal length one? is it because of the wastegate flange
leaking? or is there something special about the stock manifold. (serious question)
>
QUOTE (RUNNIN-LOW @ Apr 29, 2009 - 3:24 PM) *
>cleanest and best way i think biggrin.gif

do you have a wastegate dump tube? or do you just let it open in your engine bay?

RUNNIN-LOW
#14
that was when the turbo kit was still getting put in biggrin.gif the dump tube goes all the way down...

This post has been edited by RUNNIN-LOW: Apr 29, 2009 - 7:41 PM
playr158
#15
>
QUOTE (easternpiro1 @ Apr 29, 2009 - 2:29 PM) *
>what material would you suggest? (gauge?) i was told several different things, im narrowing it down. and also, im not very confident in this guy's welding, since they screwed up the first time by sending it off to someone, theyre doing it in house, and i know they half ass alot, so i will be viewing pictures of his work soon.



STOP GOING BACK TO THOSE CRAPTASTIC CRAP HOLE

go somewhere that does it right the first time, or i'm taking a trip to visit you and put foot in ur ass
easternpiro1
#16
>
QUOTE (playr158 @ Apr 29, 2009 - 9:11 PM) *
>>
QUOTE (easternpiro1 @ Apr 29, 2009 - 2:29 PM) *
>what material would you suggest? (gauge?) i was told several different things, im narrowing it down. and also, im not very confident in this guy's welding, since they screwed up the first time by sending it off to someone, theyre doing it in house, and i know they half ass alot, so i will be viewing pictures of his work soon.



STOP GOING BACK TO THOSE CRAPTASTIC CRAP HOLE

go somewhere that does it right the first time, or i'm taking a trip to visit you and put foot in ur ass


youre right bro! youre absolutely right, i would just as soon take it to this great welding shop near me, but theyre doing it for free (since they screwed up) i tried to have it sourced elsewhere, but they want to save money that I GAVE THEM in the first place... dont understand the logic in their stance, dont really care but imma see what this guy's work looks like before i commit.

This post has been edited by easternpiro1: Apr 29, 2009 - 10:10 PM
QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM)You want power but have no money. That's a problem.Cheap. Reliable. Fast. Pick two.
lagos
#17
Honestly Matt.. get a stock manifold and an adapter. If that shop wants to make it up to you by fixing the problem, then hand those parts to them, and have them install them and make you a dump pipe for the waste gate.
If they start trying to fab up some tubular design manifold, then you will probably have the same problem again.
15PSI - 30MPG - Megasquirt Tuned
alltracman78
#18
>
QUOTE (olaHalo @ Apr 29, 2009 - 7:29 PM) *
>im curious of how a log manifold will be more reliable than a equal length one? is it because of the wastegate flange
leaking? or is there something special about the stock manifold. (serious question)


Reliable doesn't mean higher performance.
Cast iron is less apt to crack than tubular steel.

BTW the stock manifold isn't a log manifold.
easternpiro1
#19
if i got the stock manifold, i can clean it up etc, but still be out some $. and im also unsure about fitment without having to change all of the exhaust around, but enh... imma talk to them tomorrow see whats good.
QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM)You want power but have no money. That's a problem.Cheap. Reliable. Fast. Pick two.
pitcelica
#20
I agree with the stock 3rd gen manifold + adapter. Port the stock manifold, coat it with some ceramic coating for the look and function, and ask those guys to modify your downpipe to make it fit with the new manifold/turbo location.

Unless you really want that bling-bling style of ss manifold, the stock manifold has no disadvantage vs ss manifold. You'll not notice any performance gain.

Sam
easternpiro1
#21
I just talked to them, theyre saying that they tried to fit a 3rd gen manifold on there but bolt patterns were different, i asked how this could be (since i bought the 3rd gen exhaust gasket). they insist it wouldnt match up on the block side, i know better though.
QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM)You want power but have no money. That's a problem.Cheap. Reliable. Fast. Pick two.
playr158
#22
**** them.

money back and go somewhere else. That and just make them take a picture to prove it.
bccentaur3
#23
Yeah they are screwing with you bro... A 3rd gen manifold WILL fit. You sould know that.. Buy my manifold and an adapter and have the douches fit the dp.
98 Celica gt red- totaled deer94 Celica st black DD (bad weather beater)- totaled deer95 Celica gt silver- chassis sold88 Celica All-Trac (Burned to a crisp)94 Celica gt white (sold)In need of a rust free chassis!!!!
easternpiro1
#24
i know it! lol i told them why wouldnt the manifold fit when the gasket does, but we shall see....
QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM)You want power but have no money. That's a problem.Cheap. Reliable. Fast. Pick two.
eggman40
#25
>
QUOTE (easternpiro1 @ Apr 30, 2009 - 8:53 AM) *
>I just talked to them, theyre saying that they tried to fit a 3rd gen manifold on there but bolt patterns were different, i asked how this could be (since i bought the 3rd gen exhaust gasket). they insist it wouldnt match up on the block side, i know better though.


sounds like they just want you to pay for a custom manifold. Have them show you that it doesnt fit. if it doesn't, then you probably received the wrong manifold.

If it does, have them make the dump pipe go all the way down, and make the DP fit the exhaust and you are done! save your money and get something else that will give your better performance like a walbro fuel pump or a water injection kit.
d0w0rkS0n
#26
here ya go. go with this design laugh.gif


1994 Toyota Celica ST Turbo1991 Toyota MR2MySpace
scarcustoms
#27
>
QUOTE (eggman40 @ May 5, 2009 - 3:26 PM) *
>>
QUOTE (easternpiro1 @ Apr 30, 2009 - 8:53 AM) *
>I just talked to them, theyre saying that they tried to fit a 3rd gen manifold on there but bolt patterns were different, i asked how this could be (since i bought the 3rd gen exhaust gasket). they insist it wouldnt match up on the block side, i know better though.


sounds like they just want you to pay for a custom manifold. Have them show you that it doesnt fit. if it doesn't, then you probably received the wrong manifold.

If it does, have them make the dump pipe go all the way down, and make the DP fit the exhaust and you are done! save your money and get something else that will give your better performance like a walbro fuel pump or a water injection kit.



Sorry guys we appreciate the critical comments. This was our first custom manifold on a fourth gen 3SGTE. Matt requested a custom manifold at the time of the build. We are not charging him any additional money to make this right so our customer is happy. Everyone makes mistakes.....especially with very limited information on the fourth GEN 3SGTE. We are willing to admit our mistakes. WE DO TAKE CARE OF OUR CUSTOMERS! Matt will have the manifold corrected at no charge!

Thanks,

Chris
easternpiro1
#28
this is true^^^ I appreciate it.

This post has been edited by easternpiro1: May 6, 2009 - 7:44 PM
QUOTE (Galcobar @ Oct 15, 2008 - 2:44 AM)You want power but have no money. That's a problem.Cheap. Reliable. Fast. Pick two.
njccmd2002
#29
was the 3rd manifold available here in the us?
Learned a lot in 10 years...I hardly log in anymore, last loginToday Sept 6 2019, and I was forced just to clarify a post. LOLIf you PM me and I dont respond, dont fret or cry. Im alive, better post your questions in the thread below, maybe I log back in2grfe Swapped...Why I chose the 2GR, before you ask read here...A great civilization is not conquered from without until it has destroyed itself from within.@llamaraxing in Instagram is the best way to find me. I hardly log here anymore.
njccmd2002
#30
nevermind, its from the st205. duh....
Learned a lot in 10 years...I hardly log in anymore, last loginToday Sept 6 2019, and I was forced just to clarify a post. LOLIf you PM me and I dont respond, dont fret or cry. Im alive, better post your questions in the thread below, maybe I log back in2grfe Swapped...Why I chose the 2GR, before you ask read here...A great civilization is not conquered from without until it has destroyed itself from within.@llamaraxing in Instagram is the best way to find me. I hardly log here anymore.
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