S.A. MSP's Twin Turbo Build Thread
- Thread starter S.A.MSP
- Start date
Word, i just have to find my existing turbo i big brother
Velocifero
Wham Bam thank you Ma'am
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- VRM MS6, Sunlight Silver MSP
you and I know somebody that has one off a bluebird, he is local and it would be very affordable, ATP sells the flanges for it too.
And as far as your side exahust and the car being too low, your car isn't nearly as low as Korey's on Ksports and 15s and he has side exit. Also you could consider my route and do a e-cutout so you can have it loud or quiet.
well i wanted to do side exit right behind the front wheel, what kinda turbo is that wich came off the bluebird, i might just do a permanent cutout, have the exhaust stop after a light weight race muffler midway under the car
the smart way to do this would be to remove the ac compressor, run a large centrifugal sc in its place and have the stock T25R turbo intake piping blow into the sc and make 30+ psi on the stock turbo. it is called compound charging, you are compressing precompressed air. not to mention once the turbo spools, it also spools the sc so the blower is no longer causing the motor to work harder.
but if you are set on using 2 smalls turbos (even though one is more then efficient anyways) why not sell the T25R and buy 2 IHI vj-11s from the old probes/mx6.they are cheap, will spool quick off 2 cylinders, And if you actually got to the point where it would max them out (very doubtful) you can cheaply source the vj-17 hotside and have 2 hybrids. Thats the cheapest way to do it and that way you can keep it all mazda hardware minus the piping/exhaust.
but if you are set on using 2 smalls turbos (even though one is more then efficient anyways) why not sell the T25R and buy 2 IHI vj-11s from the old probes/mx6.they are cheap, will spool quick off 2 cylinders, And if you actually got to the point where it would max them out (very doubtful) you can cheaply source the vj-17 hotside and have 2 hybrids. Thats the cheapest way to do it and that way you can keep it all mazda hardware minus the piping/exhaust.
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I like that idea, but I think the one small one feeding the larger one sequentially would be the best way to go...
and I hope your going forged with this, cause if your doing this and only going to be boosting under 10psi its kinda pointless lol
I would highly not reccomend going over 10 psi on stock internals...heh, when these things blow they have been known to throw pistons through the side of the block...then your out even more money lol
and I hope your going forged with this, cause if your doing this and only going to be boosting under 10psi its kinda pointless lol
I would highly not reccomend going over 10 psi on stock internals...heh, when these things blow they have been known to throw pistons through the side of the block...then your out even more money lol
btw a m90 blower can flow more cfm then you would need. They are cheap, have self contained oiling and canbe found on ebay. Have the T25R flow 6-8psi straight into the m90, then use the appropriet sized pulley to get your desired max boost. The T25R will spool very quick will no IC in its way and give you a strong low and midrange, then the blower backs up the top end. Ive seen a lexus v6 in an mr2 using this kind of system pushing 600+whp with power everywhere designed to set landspeed records in an mr2 at the salt flats. (though they used a roots blower, same idea, m90 will be more efficient since you can intercool the boost)
so you have $10,000+ lying around for a custom made transmission? Cause your stock box aint gonna survive even a single large turbo lol your propsed drivetrain alone will cost twice what your car is worth if you actually go through with this..
so you have $10,000+ lying around for a custom made transmission? Cause your stock box aint gonna survive even a single large turbo lol your propsed drivetrain alone will cost twice what your car is worth if you actually go through with this..
attached is a very poor picture I made to help visualize what you would do:
in the pic below you can see a makeshift SC setup on a 1.9 sohc escort motor (feoa.net for more info, guys name is skuce)
see where he has the air intake, instead of that you have the piping from your T25r feeding the blower and keep the intake on your turbocharger.
This pic is a M60, I would suggest M90 if you can get it to fit. Since the T25R is well in efficiency range at 6psi it will not have to be intercooled before it goes to the blower. (on the stock mazdaspeed 6psi at the manifold is actually 10psi preintercooler thanks to the terrible stock IC design, thats why the stock turbo blows hot at 6psi at the manifold cause the turbo is actually pumping 10psi)
With the M90 and T25R you could run anywhere fro 20psi to blowup. If you want your built block to last I suggest also getting an individual port alcohol injection system or always have race gas in the tank. at 30+psi there is no room for error.
not to mention you need, clutch, trans,axles, slicks, some slick ex manifold able to deal with 600+HP worth of exhaust backpressure getting through the internally WG T25R etc. just to make it down the 4020 and live to tell about it (first) lol
A nice single turbo sounds about right now doesnt it
in the pic below you can see a makeshift SC setup on a 1.9 sohc escort motor (feoa.net for more info, guys name is skuce)
see where he has the air intake, instead of that you have the piping from your T25r feeding the blower and keep the intake on your turbocharger.
This pic is a M60, I would suggest M90 if you can get it to fit. Since the T25R is well in efficiency range at 6psi it will not have to be intercooled before it goes to the blower. (on the stock mazdaspeed 6psi at the manifold is actually 10psi preintercooler thanks to the terrible stock IC design, thats why the stock turbo blows hot at 6psi at the manifold cause the turbo is actually pumping 10psi)
With the M90 and T25R you could run anywhere fro 20psi to blowup. If you want your built block to last I suggest also getting an individual port alcohol injection system or always have race gas in the tank. at 30+psi there is no room for error.
not to mention you need, clutch, trans,axles, slicks, some slick ex manifold able to deal with 600+HP worth of exhaust backpressure getting through the internally WG T25R etc. just to make it down the 4020 and live to tell about it (first) lol
A nice single turbo sounds about right now doesnt it
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I agree, but its not necessarily that bad...theres a guy in so cal here with a T4 turbo, stock internals, stock tranny, front mount IC...running about 10 psi of boost but flowing a lot of air...think his last dyno was 250 WHp...but anyways, he hasnt had any tranny problems
like I said, it would be good to upgrade the tranny, but not necessary...I personally wouldnt upgrade the tranny unless I am forced to cause it has an issue
crashkelly
Banned
yeah but if he has twin turbos on his car its going to be exceeding 250whp...probably by a lot...
crashkelly
Banned
it might not cost him 10000 for a better drivetrain though...if he really knows what he is doing. You could always mate another cars tranny to the engine. It would require a lot of custom work....but it can be done relatively cheaply if you can do all the work yourself.
If hes running a EMS system...otherwise he might not see as good of results as he would like on the stock tune
granted, he will be pushing more than 250 when hes done, but I still would wait to see if hes going to have an issue first
UNLESS he could find a buyer for his stock tranny and put that money towards a quaife...that would be a smart move
granted, he will be pushing more than 250 when hes done, but I still would wait to see if hes going to have an issue first
UNLESS he could find a buyer for his stock tranny and put that money towards a quaife...that would be a smart move
i had 260whp before my motor blew so about 300 was going thru the tranny and i didn't have any issues, all i had was what's in my sig, i am upgrading axles, gears, clutch, flywheel and def the LSD, but all in good time, first all the turbo work, with low boost i can start the work on the tranny
He could try to run it like AMS with the EVO or how All Aspects has there WRX. That would take a massive custom manifold and two IC's.
if you only want 300WHP why are you bothering with any of this? Send you turbo to MPI Nick and have him rework it for the power you are looking for, then you dont have to waste time money etc. just to say you have 2 turbos lol
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