gimme some opinions on new twin setup hotside
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gimme some opinions on new twin setup hotside

  1. #1
    mo balls than $cents$ IMPATIENT 1's Avatar
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    Question gimme some opinions on new twin setup hotside

    Ok guys im working on the twin turbo exhaust system(hotside) and the tech in me keeps sayin make the exhaust side equal length/volume and to hell with turbo placment being nice visually(having turbs look right and even). Ill have 5" of extra hotside on lh side of motor compared to rh side if i go for looks over function.to me making the exhaust balanced in length and volume to the turbs overrides looks and the charge pipe can be unequal length turb to turb since they collect prior to hat.it wont look bad with equal exhaust but one turb will be 5"forward from the other but both sides of motor will be equal in exhaust and shld be as well in backpressure.so wld you go with what will make the motor run equal side to side or go for looks? Ive been a function over form guy most of my life so this has me alilmindphucked on what direction to go.every system ive had my hands into so far have had unequal hotsides just to make it all look square and im not sure i wanna keep with that train of thot.gimme some imo on it

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    LP-25.com Infomaniac's Avatar
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    Symmetry is over rated.

    Turbo deals look like ass anyway man.
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    Senior Member TNYoungblood's Avatar
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    Well since your askin . they look like shit anyways so do whatever is the right way
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  6. #4
    mo balls than $cents$ IMPATIENT 1's Avatar
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    Quote Originally Posted by Infomaniac View Post
    Symmetry is over rated.

    Turbo deals look like ass anyway man.
    Lol so thats a vote for equal exhaust?

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    Default turbos

    You will probably make more power than you need anyway........so you may as well try to make it look a little bit better. You will never miss the 20hp you loose from unequal length headers.

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    Senior Member TurboNova's Avatar
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    Honestly, once you hit the turbo it is all back pressure anyway. Equal isn't something you have to have. So place the turbos where you want them and build to the collector. Don't use header tubing any smaller than the exhaust port of the head and a little larger if you can. The most important part is having a large un-shrouded collector before the turbo so you have a place for the pressure to collect and equalize. Don't try to have too small of a collector or too short of a collector it will only hurt you. A tapered cone into a square to round adapter available from SPD Exhaust will help. The wastegate should be large enough on each header to blow off all pressure or almost all pressure to control the boost. The flow into the collector should also point into the wastegate tube in the same direction. Twin 60mm wastegates for your engine. One in each collector before the turbo. I would run a min of a 10psi spring and use CO2 on top of the gate with the boost controller in XFI.

  9. #7
    mo balls than $cents$ IMPATIENT 1's Avatar
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    Thumbs up

    Thanx brian.youve got me thinkin im moving in the right directions..primaries are what you mentioned along with collection.even have twin 60mm gates already

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  10. #8
    Senior Member Fireguy's Avatar
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    My hotside fwiw. The left side has the turbo flange offset to get the turbos to sit symmetrical.
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    Senior Member TurboNova's Avatar
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    That looks good and will work well.

  12. #10
    mo balls than $cents$ IMPATIENT 1's Avatar
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    Thumbs up

    Quote Originally Posted by Fireguy View Post
    My hotside fwiw. The left side has the turbo flange offset to get the turbos to sit symmetrical.
    Nice job man!!!

    Tryn to keep the new deal lowprofile like the last so im putting them behind motor down low about vcover level.we re hitting a carshow saturday and fishing sunday so prob gna be next wk before i get it welded.talked to guy who will do tig work on it and he said we cld do it next saturday.im no welder and dont wanna use a mig on it at all since its polished ss so im dragn boat to him to tack up stuff where i want it then ill yank it out quickly n have him finish tign it up.stared at it this mornin before work and i think i can make em symetric and only be 3" longer on one collector with a lil work.wanted to run the turbo mounting plates leveled to engine but if one has a angle to it ,no biggie im making turbo supports off the heads anyways.my twin boys will be with me for next few days ill run it by them and let them decide.

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    Senior Member Fireguy's Avatar
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    I was also going to mount them low and more toward the rear, but I was worried about heat issues. As it is now, I can almost get away without heat shields. I really need the heat shields for the passengers in the back seat.

  14. #12
    Or Seth, either one Budweiser's Avatar
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    Tom, what direction did you end up going with this?

    Also, what have you been using for exhaust valves?

  15. #13
    mo balls than $cents$ IMPATIENT 1's Avatar
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    Quote Originally Posted by Budweiser View Post
    Tom, what direction did you end up going with this?

    Also, what have you been using for exhaust valves?
    Stock valves lol i staggered the header alil to make the setup look better. my twins are pulling the motor this wknd if its nice for rerringing and ill snap some pix before they pull it.shld be ready to lite off in couple wks.

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  16. #14
    gn7
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    Sounds like fretting over the shade of lipstick to put on a pig.



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