has any one used a tdo6 20g

[d.p.n.s]

hi all i was just wondering if anyone has used a td06 20gturbo on the ca18?

[r34 gtr]

Hot side might be a little big. A TD05H-20G would be amazing though. I would imagine it would be spooled by 4k and be good for 450hp. I love the idea of a 20g on the CA18, I think it would be prefect.

[D_Stirls]

This bloke is running one, he's having some ignition issues as you can see by how rough the graph is.But it did make 282rwkw (~380wHP) on less than 20psi. It will make over 300rwkw (~400wHP) once he has sorted the ignition gremlins and runs more boost.

http://www.nissansilvia.com/fo...&fcat=#

[themadscientist]

When CAs were common, the TD06-20G was one of the perfect turbos. I think an 8cm back side was optimal.

[r34 gtr]

I would really like to run a 20g one of these days. Unfortunately that means making my own manifold, and I am not at that point in my automotive hobbyist career yet.

[RS12Turbo]

I'm using a td05h 16g

[dash]

one of the best street ca18 combos I recall was Tones old td06/20g. *Engine* dyno'd at 496 hp, but what separates the sheep from the goats, is the torque output. That CA18 made a hefty 474 ft-lbs tq. 20G perform excellent a various hi 10/lo 11 sec street 4cyl.Mitsu turbos really show their teeth & claws when cranked up.... approaching 30psi, as this CA

[r34 gtr]

Keith you should hook me up with one of them exhaust manifolds.

[RS12Turbo]

I've tried to give the guy that made mine more buisness........but he seems to be missing in action so to speak for the last 8 months or so. Can't remember who on this forum I gave his info to....but he said he tried contacting him several times, and he never responded back. Same trend is going on over on Club-s12 where he owes people $$$$ because he took the money and ran. I hear the same thing is going on over on the z31 forums as well. What a shame...he was making quality stuff. I've known him for years, but like everyone else, he won't return my calls either.Hate to say it, but at this time I would look elsewhere for custom mani's

[r34 gtr]

Oh that sucks, guess I will have to man up and make my own... Looks like I just need a nice welder, some stainless tubing, and oh yeah SKILL. Good thing the gt3071r exists.

[d.p.n.s]

thans guysso after thinking about it all weekend i have deicided to go with the td05h 20g .its got heaps of power and not as much lag as the td06 20g.

and ill make a topmount manifold myself.and i think ill keep internaly wastegated.

cheersdan

[D_Stirls]

I would suggest that a 18G compressor would be a better match to the TD05 rear. Look at what people are making with a T518Z as it is basically the same as a TD05H-18G.

Or look at a TD06S-L2 20G as they have a smaller rear wheel with one less blade so they are kind of between a TD05 and a TD06

http://www.skylinesaustralia.c...51041

[RS12Turbo]

thans guysso after thinking about it all weekend i have deicided to go with the td05h 20g .its got heaps of power and not as much lag as the td06 20g.

and ill make a topmount manifold myself.and i think ill keep internaly wastegated.

cheersdan

I don't know if the td05h 20g's are anything like the th05h 16g's, but mine has horrible boost creep. In the upper gears at wot, boost will keep climbing and climbing. I've got to get my wastegate ported, and have a 35mm flapper installed.

[r34 gtr]

Yeah, for a turbo that big you had really ought to be running an external gate. Internal WG is no bueno.

[d.p.n.s]

so thats the way ill gotdo5h 20g with a home made custom topmountwith equil runners and an external wastegate.

cheers guys

[themadscientist]

I have two TD05-18Gs with 8cm housings....

[dash]

no need for the complexity, extra weight & plumbing of an external wastegate.Quickest street evoIII, 18g and 20g mitsus I've noticed, all ran integral gates.Best two performing 20g street DSMs both ran clipped 05 hot wheels. From memory, forced perf 15 degree, bushur racing 23 degree clip. ET ~11.0/10.9Hahn racecraft project FWD eclipse (420A 2L motor) street car, managed an impressive 11.2 sec ET equipped with their own td05h-20g/ 10cm hotside, int wgThey used to offer those and the 06 - 8cm for $699, int wg included. Good deal imo

[float_6969]

You only need an external gate if you're trying to run low boost on a big turbo.

BUT those mitsu turbo's are infamous for creep, and it's possible you'll run into issues if you're trying to keep the boost down low.

I would still think that enlarging the internal port and run a larger flapper should solve the problem. Although the easiest solution to solving boost creep is to run more boost than you are creeping up to. Ie; If you are running 10psi, and creeping to 13psi, if you run 15psi, you won't get any creep.

If you look at the F1 cars in the 80's making 1000HP, most of them were running 2 huge external waste gates on a 4cylinder. This is because they were using HUGE compressors and TINY turbines. This combo makes for LOTS of boost creep. The only way to solve this was to run the waste gate setup they ran.

[bentvalves]

also on the note of F1 setups, the only difference between qualifying engines and race engines were that the race engines actually HAD wastegates to control boost pressure!

[r34 gtr]

Heck yeah! Wast gates are for p******!!

[BACARDI_DWB]

Has anyone ran forced performances 20G? it has the 8cm2 backhousing and it is t25 flanged. This should bolt right up to the CA18DET stock manifold and run lots of fun power.

http://store.forcedperformance...Turbo

[float_6969]

Are you sure that the compressor housing will clear the manifold? Also, don't mitsu turbo's spin backwards?

[dash]

lot of threads on ns.com on td06SL2/20g turbos on sr20s

what I'm thinkin.... does it even make sense to try flowing all that thru a puny little T2 hole ? ....sorta like a gt2871 imo

[BACARDI_DWB]

not quite sure on the manifold clearing, but I am going to try it. Not all Mitsu turbo's were reverse scroll, if you look at the site it shows that it spins the correct way.

No it doesn't make sense to flow all that through a little tiny hole, but I have space constraints that force me to use a t2 manifold in my project, without having to build a one off manifold...

[float_6969]

Yea, I've wondered what space is like in that car of yours. Why don't you have a build thread anywhere?

[BACARDI_DWB]

Well I guess I will have to toss up all my pics. I will do it tomorrow when I get off of work...