big 16g to evo 3 or bastard 20g

[Gstdsmboi]

so im looking to rebuild my big 16g turbo for my 98 gst, was wondering if i should upgrade it to bastard 20g or evo 3 and it will be my daily driver.

 

[Seamus]

20g I'd say. They all spool about the same. The 20g just has a little more flow. Since they all share an exuder size all you have to do is throw a cover machined for a 20g and you're done.

 

[LaserRS92]

What mods do you have?

Just curious because a big 16g is 40lb min, evo 3 16g is 43lb min, and bastard 20g is going to be around 45-46lb min turbos. I'd be interested to see if you are getting the most out of your turbo currently before trying to peak out on those turbos minimal increase in flow.

The Evo 3 16g is about as efficient as you get in that range. The turbine wheel is going to be a restriction before you even max out the 20g wheel design.

 

[Gstdsmboi]

also is turbo lab a good place to get it done

ive got a boost controller full exhaust and i know im gonna need injectors and a fuel pump and dsm link

im actually getting it built now with manley rods and npr pistons too

 

[LaserRS92]

Any cams? Turbo Lab is just fine and there are others out there if you look around.

 

[Gstdsmboi]

no do i need cams and if so what kind would you recommend

 

[LaserRS92]

What are the goals for the car?

 

[Gstdsmboi]

400-450 hp occasional track use daily driver

 

[Bud92gsx]

So I'm guessing the first time you asked this question you didnt want to listen?

http://www.dsmtuners.com/forums/newbie-forum/473352-14b-upgrade-20g-question.html

 

[Gstdsmboi]

ok but im talkin big 16g now

 

[92AWDHX40]

Try some fp cams, fuel upgrade, tuning device, that's a good start.

 

[Gstdsmboi]

thanks man

 

[JusMX141]

There is no "upgrading" a Big 16G to an Evo III....the wheels are the same size within .010" or the thickness of two sheets of notebook paper. One wheel just performs better than the other- like two tires of the same size can perform altogether differently.

Unless you're pushing the Big 16G to it's limit, you're not going to notice a bit of difference by making it an Evo III 16G. If you're truly thinking about an upgrade, buy your favorite rebuild kit and one of these: Turbo Compressor Housing TD05H Wheel 20g DSM 1g EVO 3 | eBay...instant Bastard 20G. No need to send it to anyone special unless you're certain it may be damaged internally and needs inspected, or you feel a turbo rebuild exceeds your capabilities.

 

[CrackedDSM]

There is no "upgrading" a Big 16G to an Evo III....the wheels are the same size within .010" or the thickness of two sheets of notebook paper. One wheel just performs better than the other- like two tires of the same size can perform altogether differently.

Unless you're pushing the Big 16G to it's limit, you're not going to notice a bit of difference by making it an Evo III 16G. If you're truly thinking about an upgrade, buy your favorite rebuild kit and one of these: Turbo Compressor Housing TD05H Wheel 20g DSM 1g EVO 3 | eBay...instant Bastard 20G. No need to send it to anyone special unless you're certain it may be damaged internally and needs inspected, or you feel a turbo rebuild exceeds your capabilities.

Listen to this man, said it before I could. Plus if you do it yourself there's no chance of anyone sending you a bunk turbo, blaming you when it fails, and posting pictures of a different turbo while shit talking you behind your back like another certain builder that was mentioned here.

 

[pj91gsx]

Listen to this man, said it before I could. Plus if you do it yourself there's no chance of anyone sending you a bunk turbo, blaming you when it fails, and posting pictures of a different turbo while shit talking you behind your back like another certain builder that was mentioned here.

We sent him pictures of parts from his turbo, just because he claims that the pictures where not of his parts does not make the statement true. We also ended up replacing the turbo for free even though, the custumer drove from Ohio to Texas knowing that the turbo had a thrust bearing failure, which prolonged the damage to the turbo and caused it to need a new cartridge.
.

 

[Gstdsmboi]

Sounds like what I'll be doing then because the turbo still works I'm in charlottesville va pj91gsx we may have to do business

 

[LaserRS92]

Unless you get the Forced Performance sale of their 20g with 8cm housing and FP Race Manifold, you won't hit those power goals on the turbos mentioned. Ok well not without E85, a good cam, and BOOST.

Keep in mind as you upgrade power, drivetrain like clutch, pedal bushings, shifter cable bushings, tires, and brake upgrades come with it.

 

[Gstdsmboi]

ok thanks everyone

 

[ErikTande]

There is no "upgrading" a Big 16G to an Evo III....the wheels are the same size within .010" or the thickness of two sheets of notebook paper. One wheel just performs better than the other- like two tires of the same size can perform altogether differently.

Unless you're pushing the Big 16G to it's limit, you're not going to notice a bit of difference by making it an Evo III 16G. If you're truly thinking about an upgrade, buy your favorite rebuild kit and one of these: Turbo Compressor Housing TD05H Wheel 20g DSM 1g EVO 3 | eBay...instant Bastard 20G. No need to send it to anyone special unless you're certain it may be damaged internally and needs inspected, or you feel a turbo rebuild exceeds your capabilities.

Could I upgrade my TD05 14b to a Bastard 20g with this same route?

 

[JusMX141]

No.

http://www.dsmtuners.com/forums/153367413-post9.html

 

[ErikTande]

Cool, thanks! I'm going to start looking for a blown Big 16g then. I read that a td05 20g will spool up faster than a normal 20g without losing much flow, so that's the route I'm going to go.

 

[JusMX141]

I read that a td05 20g will spool up faster than a normal 20g without losing much flow, so that's the route I'm going to go.

Define "normal 20G".

The compressor wheel doesn't change- a 20G is available with either a TD05H or TD06 turbine wheel from the factory....one fits directly into a DSM turbine housing, the other won't fit without getting the turbine housing machined. The TD05H will spool quicker but the TD06 will provide a more-linear torque curve and will be easier to tune on pump gas because of the reduced backpressure.

 

[ErikTande]

Define "normal 20G".

The compressor wheel doesn't change- a 20G is available with either a TD05H or TD06 turbine wheel from the factory....one fits directly into a DSM turbine housing, the other won't fit without getting the turbine housing machined. The TD05H will spool quicker but the TD06 will provide a more-linear torque curve and will be easier to tune on pump gas because of the reduced backpressure.

I can't really define it, my understanding of turbos is rudimentary at best. I guess I meant TD06.

I'm looking for the quicker spool, I'm not too concerned about top end, I'm looking for getting the most out of the lower RPMs. I won't be on pump gas for long, I'll be converting to e85 as soon as I get my injectors, pump and afpr installed (they've been sitting in my garage for 2 months : p). I'll be running e85 and my stock 14b for a while while I learn how to tune things properly, but eventually I'll want to go with a bit bigger turbo.

 

[jakeachy]

Define "normal 20G".

The compressor wheel doesn't change- a 20G is available with either a TD05H or TD06 turbine wheel from the factory....one fits directly into a DSM turbine housing, the other won't fit without getting the turbine housing machined. The TD05H will spool quicker but the TD06 will provide a more-linear torque curve and will be easier to tune on pump gas because of the reduced backpressure.

how do you feel about a s16g w/ a 38mm ewg on a stock manifold for this application? is this kinugawa unit ~45lb/min?

Interesting.

 

[JusMX141]

how do you feel about a s16g w/ a 38mm ewg on a stock manifold for this application? is this kinugawa unit ~45lb/min?

Interesting.

Concerning what? You're not going to get 45 lb/min from a Small 16G, and you're not bolting a Kinugawa compressor with a 68mm exducer on a turbo which has a center housing cut for a wheel with a 60mm exducer.