I fail at sarcasm over the internat. Yea i know the stocker has its issues. Ive had mine for 80k miles and its never cracked. But i still upgraded to steedspeed.
Thunder exhaust manifold sucks
- Thread starter Packerfan
- Start date
I fail at sarcasm over the internat. Yea i know the stocker has its issues. Ive had mine for 80k miles and its never cracked. But i still upgraded to steedspeed.
blazinrola80
Member
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- msp 03
wow since you were first to respond... mine started leaking at the welds.. he offerd to replace/ repair my option.. witch is cool.. but didnt want down time.. so i pulled out my tig took care of it my self.... but now i have some free time im going to make my own..
but i would deff choose steed over thunder..
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SeR_Cyclops
Member
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- Mazdaspeed Protege
The MAM manifolds are the ultimate manifold for the mazdaspeed protege minus the fitment issues. (Some you couldnt even get a bolt on some of the studs cause the runners were so close. But still the best)
Wrong. EGTs are only high when you can't tune or there's another issue at work. Boost pressure does not increase EGT in its own right.
All this bulls*** about the manifold not being designed for more than 10-12psi is just that, bulls***. Explain the design process for that one. Wasn't designed for track use? More bulls***. Its bulls*** excuses for bulls*** products.
Mazdaspeed2oo35
600whp - 600wtq at 30 PSI
lol lol lol lol lol
Wagonbacker9
Member
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- 2004 'Hoe
OP, since you're having issues with the V2... what engine mounts are you using? if you're on stockers, THAT is your problem. you can't really expect a tubular mani to hold the extra weight of the bigger turbo AND be slopping around the engine bay.
what are you LOLing about?
what are you LOLing about?
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Mazdaspeed2oo35
600whp - 600wtq at 30 PSI
Wagonbacker9
Member
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- 2004 'Hoe
I was asking the OP a question with the other part of my post. edited for clarity.
Mazdaspeed2oo35
600whp - 600wtq at 30 PSI
I just laughed of what he said at the end... I have no problem with these Manifolds since I ain't running any.
yea u arent
Your running the hiboost , that's what I wish I could use but I don't have the money for a bigger turbo, and no one will buy my brandnew hiboost too. I need money then I can buy something let me know if u know anyone looking
Your running the hiboost , that's what I wish I could use but I don't have the money for a bigger turbo, and no one will buy my brandnew hiboost too. I need money then I can buy something let me know if u know anyone looking
4
43975
Didn't you tell me that an adaptor can be had to run the t25 for $10???
What's the deal??
Wagonbacker9
Member
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- 2004 'Hoe
yes, (I don't know about 10 bucks.. but I'm sure an adapter exists) but then you'd need a full custom downpipe.
Thank you my feeling exactly!!!!!
I can guarrantee you the EGT will raise when you raise the boost. 5psi TUNED vs 10 psi TUNED. Thats the ******* law of physic. More boost = more turbine side backpressure. More pressure = more heat. Do you have EGT gauge?
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haveahotcarl
Member
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- 2003 Black Mica MSP
Unfortunately, this is actually governed by the laws of Thermodynamics and Fluid Mechanics, that basic physics doesn't touch. This statement about EGTs is probably wrong, I would have to do some calculations... But who wants an Engineer's perspective anyway.
(deadhorse
haveahotcarl
Member
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- 2003 Black Mica MSP
+1 Thank you!
shane02pro5
25ish_psi
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- New Caney TX
What Hiboost set-up are you running? I wish I would have just replaced my IHI vf-22 again and stayed at 22psi with the ugly cast manifold! I never had leaking or cracks in over 5yrs.
I just re-welded my Thunder mani last week and I'm pretty sure it's cracked again underneath the header wrap. The last time it cracked 1/4 of the way around one of the runners. That's the first time I've ever seen something like that which would have to be due to thin crappy material. Also a 3" crack right between the 2nd and 3rd runnner. The first time I had to repair it, I unbolted the egr tube and the nipple just fell straight off of the mani!
I just re-welded my Thunder mani last week and I'm pretty sure it's cracked again underneath the header wrap. The last time it cracked 1/4 of the way around one of the runners. That's the first time I've ever seen something like that which would have to be due to thin crappy material. Also a 3" crack right between the 2nd and 3rd runnner. The first time I had to repair it, I unbolted the egr tube and the nipple just fell straight off of the mani!
You are right.
I guess EGT will also go up when more LOAD applied to the engine isnt it? Doesnt matter turbo or not, more LOAD = more heat wasted in exhaust + more mechanical forces + more heat in cooling system.
lets say when u run 20psi on a t3t4 compare to 15psi t3t4, the motor with 20psi works harder to produce more torque, so therefore more heat will be wasted. Both same turbo with same efficiency rage about 78% so outflowing a turbo will not be a problem.
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