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Alero Twin Turbo
So i made the mistake of mentioning Twin turboing the alero to my dad after the complete engine rebuild... and now hes completely serious about helping me do it.... Any tips or know of anyone that has twin on a 3.4L Alero? or would i be the first..?
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pretty sure you would be the first, if you can succeed. and if its even possible, which if no one has done it yet it might not be possible or people just didnt want to tackle a job like that. ;)
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Well im going to see if a few places here would sponsor me also My buddy is going to talking to his boss he works at one of the tire shops here and see if they would provide me with tires if i go through with it
I think its possible im gonna put as much of the best as i can in the engine before i even turbo it |
you will want to insure that engine is 100% before considering a twin turbo setup. When I look under the hood of my Alero I just dont see the room under there for TT.
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Its a pain in the ass to get one turbo in there... It'll take a lot of work to get 2 in there... I just dont see how it'll work, but goodluck!
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i know its going to take a lot of work so im going to custom make all my pipes and everything
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So what kind of set up are you thinking about? Sequential or parallel?
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you know im not to sure yet i have a year or so to thinking about it untill my engine is rebuilt i want the 2 cones right beside eachother or put the ones in the fenders
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single > twin
for the most part. have fun with fitment haha |
I will make it work ;) and i want a twin cause i never have heard of twin on a alero so i wanna make it happen i have 2 mechanics my buddy and myself to all think and do stuff for it and a good budget
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won't be that hard as long as you have someone good at tig welding. it's just piecing together piping..
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I can weld :P and bend pipe and all that myself
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Do you have a mandrel bender?
I'll be the first to say it, another kid saying stuff is gonna happen, it isn't. And if you are so "into" the build getting done. What are you gonna use on the bottom end of your motor? I doubt you even have any idea....... |
You're going to want to check out WOTTech for their turbo cam.
You'll want to build LOW compression, and a nice thick head gasket. Cometic FTW. You'll need a good builder to build up the bottom end to handle all that boost. I would say a single turbo is best, but to do a twin, those turbos are going to hav e to be small. 2 turbos best for 1.7 liter engine would work. they are small, but still make a lot of heat. |
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Not necessarily...... |
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Parallel or sequential?
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yes we have a mandrel bender and i have heard good things about Cometic
i was thinking getting the turbo engine kit from WOT-tech I still have A lot of things to figure out but until i have all the parts for the engine build im not starting maybe start it all next summer i have a tig mig and a arc welder in the garage. I am completely serious about this build and if i can't do the piping myself then my buddy knows a place where they can do completely custom piping if worse comes to worse then i may only do a good sized single turbo but my minds set for twin And thats why i came here for info someone has to have some tips for me.. |
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The wot-tech turbo kit packages don't include anything bottom end. And yes is for some reason you decide to go forward a single will be way better.... |
Single turbo can make way more power also much less to go wrong... Also you dont want low comp... Thats less power just get a fantastic tuner comfortable with hptuners
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I'll do another vote towards the single turbo. Although it would be pretty awesome to see a TT Alero, I feel like it'll be more beneficial to build just one.
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i was thinking about the single but i would also love to see a twin on there
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i vote TT, be different man
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Are you wanting this to be street-driven, and what kind of emissions testing do you have in your area? At this point, I can't visualize it being made to look good in the engine bay. The twin turbos I have seen that look awesome usually have symmetrical placement, 2 of everything..... if you are going to dump it into one exhaust pipe anyway, you'd do better with a higher-tech single unit. But like I always say, relocate the battery and cut out the fenderwell to prove you're serious, then get back to us ;) |
I love originality, but it's alway expensive to be the first to do something... believe me, but if you got the skills, time and money to do it.... GO FOR IT
With that said I still agree with the others, one single dual ball bearing gt30/35 series should give same results than twin gt 25/28 ( and you'll save about 2000$ because you only have to buy one turbo, a lot less piping to do, oil line, coolant line, etc... and with the power it'll produce, you won't even feel (lag) 500-800 more rpm to full boost |
Believe me guys i know theres a ton of work and im not looking for overall performance even though it would be nice ;D just to be unique i have time and i will have enough money to start the build this summer. I hear what you guys are saying with the single but first im going to see what im going to do in the engine bay to fit a TT in there if by the time im starting and i don't think its gonna happen then i will do the single turbo
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what about a remote mount setup? for tuning, why can't someone just buck up and go stand alone?
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remotount would be the easear route to go
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Because nobody has had a build extreme enough to warrant it. |
If you relocate the fusebox under the passenger dash the batter to the trunk and the brake master cylinder to under the passenger dash you would have plenty of room
You can get most of the stuff for that on chasebays.com |
haven't read all, but what about 2 Smart car turbos?
they are the size of a cigarette package and can provide some good boost. One turbo for each bank, both spinning with way above 10k rpm. Might wanna consider. Just as a reminder from an engineer, build a good package in its whole, look out that everything fits the other parts. This will get you way more than anything else slapped together. Might wanna consider a 2Stage Turbo - maybe some of the BorgWarner BMW stuff. They might just fit between the cylinder banks, that would make some seriously fast spool up. |
my vote is go single turbo, and use the money you would have used on the 2nd turbo, fab, ect to build that transmission, trust me, you're going to need it.
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That's what I was thinking when I put up my post. I've seen turbos for a .7-1.4 liter engine and they are very very very small. I'd probably want to go a little bit bigger than twins that can only handle 2.8 liters put together, since we are talking 3.4 liters here, but that would be a good way to start. IDK if it would fit the 99+ LA1 lower manifold, but I have seen a UIM which converts to a carb set-up. Don't know if it's the best way, but tuning 2 turbos has to be a bitch |
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Just to inform people here... normal turbo spool speed is between 100 000 and 150 000 rpm... |
dang I missed a 0 -- ok, have to look into it once more, cause I know that these small turbos spin like hell.
Ahhh I hate german manufacturers, you can't find solid info as easy as with americans :mad: |
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