t3/t04b on 420

[nuclakid]

I have read in here about the 16g and t3 and a little about t3/t4 but i havent really heard specifics on exhaust numbers and intake number and trim wheel info. So what i am asking is i have a 420a and all the equipment to turbo it and i have a t3/to4b from a previous project that is a .60 intake and a .90 exhaust, possible of a lot more power then my stock 420a will handle. So as far as power and turbo lag i am wondering if i should get something a little calmer say something closer to a .48 intake and 60 exhaust, i am just wondering if the exhaust out of a 2.0 will spin a .90 exhaust wheel with out being a 500 rpm over redline.

 

[VelocitàPaola]

It's all about your goals... what do you want for the car? Are you going to convert it into an all out drag racer, or do you just want a little more pep driving around town?

I say, if you've set your goals high, keep the larger turbo... if not, then don't.

 

[nuclakid]

i just want some more power, i live at 7000 ft and the poor 2.0 just can come up with the o2 to pass anyone blah blah. I got really used to my last car which was a probe gt turbo, an with it being a turbo the elevation doesnt matter and it was a good car because i ran good. so i guess i am looking for as much as you would recommend for a daily driver on a stock motor, at least for a while..

thanks.

 

[VelocitàPaola]

Then I would probably get a smaller turbo and keep it at 6-7psi.

 

[nuclakid]

what do you think that i should get, i was wondering if a t3/t04e .48/.60 is a good choice. I already have a manifold with a t3 or t4 flange, and needs to use an external wastegate. I dont know if mitsubishi turbo's use that bolt pattern or not. So if you can let me know what turbo is good for that range that would be great

Thanks
nathan

 

[4UH8ERS]

I dont know if mitsubishi turbo's use that bolt pattern or not. So if you can let me know what turbo is good for that range that would be great

Thanks
nathan

Most MHI 16g, 14b, 20g ect have there own specific flanges on the intake and exhaust side and are not compatible with t3/t4 manifolds or downpipes.

Now the hahn racecraft turbos come in 15g, s16g, s20g, s25g and all come with the exact same manifold to turbo flange as any t3. The exhaust flange is also a 3bolt, which is a very common t3 bolt pattern as well. So if you going with hahn racecraft, then yes your manifold is fine. Thats asssuming its made for internally gated turbos or you plan on welding the flapper shut.

 

[DSMcrazy3]

.48/.60 is a much better turbo for your goals.

 

[Slippi84]

SOrry to bring this back from the grave but the 16g in mitsu exhaust housing will do 300on pump and spool crazy quick so I would think that would be the way to go. DOes anyone think a 20g t3 hotside is to big and a waste for a non built 420a?

 

[VelocitàPaola]

Huh? As in, a Hahn S20G -- 20G turbo with T3-style exhaust housing?

I think that's a little much if you never plan on building the engine. A 16G would be a much better choice. The best advice is to have a goal in mind and try to build to that.

 

[Slippi84]

Yeah I only asked because I saw someone selling on on the classifieds in t3 form. A 16g is def what i'm looking for problem is who makes a t3 16g other than hahn who will charge me arm and a leg.

 

[VelocitàPaola]

I think Hahn is the only manufacturer who makes T3 style 16Gs...

What's wrong with just a standard MHI 16G or an EvoIII or something?

 

[Slippi84]

I think Hahn is the only manufacturer who makes T3 style 16Gs...

What's wrong with just a standard MHI 16G or an EvoIII or something?

Does the o2 housing pose a problem for the down pipe as in location and flange style? That was my main concern if not I have a o2 housing with dump I will use.

Edit: By the way what are you guys doing cooiling wise. 16g's are oil and water cooled stock along with the 14b???

 

[VelocitàPaola]

It's pretty easy to rig a water cooled turbo with 420As, but most of us don't do it anyway. You can simply connect the turbo inline with the heater core lines, and you should be set. The 16Gs and 14Bs don't need to be water cooled, but I don't blame you for wanting to.

The O2 housing cannot be used, but it's easy enough to find a flange and weld together your own downpipe -- I just had a local muffler shop do it for me... I just handed them a mandrel U-bend and a flange and said "get to work."