RedR1

iTrader: (5)

Hello All, just out of curiosity, does anyone know about what RPM range this turbo reaches full boost at? I am looking for something in the T04E range for periodic road racing. I have noticed that all of the Japanese time attack FD's run the TD06-25G kit, and was wondering what was so special about them. I assume that it's a low rpm turbo, but I could not find any information on this turbo. Please post any links, or any advice.

I really appreciate everyone's help in advance-
Chris

SidewaysR1

The TD06-25G turbo is the next step below the T78 turbo that is used in the Greddy kits. Mitsu turbos are very reliable and are efficient to very high psi(25+), that is my guess as to why all the time attack cars use them. Also they spool relatively quickly for a non ball bearing turbo. As far as exact spool time, Im not really sure, I dont know of anyone running that kit in the US. My guess as compared to other Mitsu turbos that I have seen is that it would start to make boost around 2K and full boost by 3.5-4K. You would have to order it from somewhere in Japan and have it shipped in since Greddy doesnt offer it here. Try to talk to some of our Japanese friends on the board to get some actual data.

setzep

Are you sure the 25g compressor wheel is good to 25psi?

skir2222

my one friend had a t28 killer turbo and pushed 30psi.

RedR1

iTrader: (5)

Thanks a bunch sidewaysR1! by chance, do you know if it sort of has the same spool characteristics as the T04E? I have seen multiple dyno charts, as well as word of mouth from a few FD owners that the T04E hits full boost by about 4 grand as well. I've tried so hard to find info to compare the both, but the 25g is like non-existant. I can't even find any Japanese sites that has the stats of that kit. I'll send out some emails tho, thanks

Turbo II FC

iTrader: (14)

Actually alot of the circuit racing FD's in japan on Tsukuba circuit use TD07-25G's. And actually the step below the T78 is the TD07-25G, then below that is the T67-25G then comes the TD06-25G and TD06-20G. The RE Amemiya's FC and FD run TD07-25G's. The TD06-25G will spool slower than say a T04E with a .84 AR such as mine(dependant on AR sizes of course). The TD06-20G is more comparable to max output and spool time to the T04E.

Rxmfn7

iTrader: (4)

While on the subject of mitsu turbo kits , anyone know anything about the Td-07 25A , or TD-07 25H kits? Like as what garret they would be comparable to, what kind of boost reponese, power, etc?

Rxmfn7

iTrader: (4)

Anyone?

SidewaysR1

I am aware that there are turbos between the T78 and the TD06-25G but not that Greddy uses in there kits. They go from the T78 kit to the 25G kit. Im not sure if they use the TD06 or TD07 in the RX7 kit. I am fairly familiar with the mitsu turbos because I have serveral friends that have DSM's and there is a local shop that specializes in DSM's and they all use Mitsu turbos. Mostly the 16G, 18G, and 20G. My buddy used a TD06-25G for his street/strip car (91 Talon). He was boosting about 20psi until he got some bigger injectors. Then he was going to up the boost. He put down 471hp to the wheels at about 20psi. He sold the car before upping the boost. Anyway with the 25G it was still at full boost under 4k. I remember when he had a 16G on it, it made full boost by 2.5k but only flowed enough for about 300-325 hp.
The other turbos you have mentioned, I have never heard of. Do some searches on the DSM forums. They all use Mitsu turbos with great results.

Rxmfn7

iTrader: (4)

Ok, thanks. The Td-07 25G, 25H, and 25A were all in kits available for the FC. I have the TD-07 25A (see pic in my avitar), but dont really know much about it. I also have the oppotruniyu to buy a TD-07 25H turbo, but like I said , its hard for me to find info on them. Id like to know what I have before I go bolting it to my engine. Ill try a DSM forum, thanks.

SidewaysR1

Rxmfn7,
Goto this site. This is the local shop that I mentioned. Email either Mike (co-owner) or Tom (Tech) and see if they know anything about these turbos. They are a good group of guys. Also, since I see your from PA you may even want to stop by their shop some time, its located in Iniana PA, about 30-45 mins from me in Johnstown. Anyhow here is the site www.slowboyracing.com

Rxmfn7

iTrader: (4)

Cool, Ill have to stop by there sometime. I make a trip up that way probably about once a week. My G/Fs brother actually just started going to school up there at Pitt Johnstown also.

SidewaysR1

Thats cool. I graduated from there spring of 03.

Rxmfn7

iTrader: (4)

Just one more quick question. From what I gather, the "TD0x" designates the turbine, while the other numbers (25G, 20G, whatever..) is the compressor. Is that correct?

sillbeer

The 25A and H are older greddy turbines. The 25G is the newer greddy turbine. I know for a fact that here in Japan Greddy made a TD06 25G kit for the fd. Me and another guy bought a td06 25g kit for fd and parted it out some time ago. I'm not real sure what the exact sizing is on the greddy turbines. I know the t67 and 78 are mitsubishi hybrid turbines. The t67 uses the exhaust housing from a td06 and the compressor housing from the td07. Same for the t78. It uses the td07 exhaust housing and td08 compressor housing.

-Destin

SidewaysR1

You are correct, the TD0X is the turbine side (range from TD04-TD08) and the XXG is the compressor side. There are different variable that can (hybrid wheels, ported housings, etc.) change in each but that is the basic idea.

RX-Heven

iTrader: (1)

I have the GReddy TD07-25g in my vert.
It spools very fast and I'm pretty happy with it.
I see 16 lbs at 3400 rpm.
pics and mods here:
https://www.rx7club.com/vbgarage.php?do=view&id=2592

Chris Ng

oops ignore

DyNaMiTe KiD

heres 2 links for the td06 on rx7 from japan

http://www.ooparts-international.co....istbycar/fd3s/

fc3s with td06 25g http://www.fnatz.com/rx-7/kantafc3s/kantafc3s.htm

use altavista bablevish to convert.

jantore

Hello

I have a TD06H-25G and it starts to spool as low as 2200 rpm. And im seeing full boost at about 3300-3400 rpm.

Im running about 18psi of boost. And it's very fast. Haven't been dynoed yet. Will do so next year. Hoping to get about 450rwhp.

The engine is dead now, due to a blown oil seal in the turbo, and alot of oil getting into the engine.

JT

drc

I have a TD06-20G...got it cheap on Ebay otherwise I probably wouldn't have bothered....can't get more than about 12lbs off boost past 5500RPM or so...on my 2nd boost controller AVCR, still have an evc4 in great shape (for sale by the way) that I thought was bad...but I'm convinced the little turbo is just out of breath. If anybody has any other experience with that turbo I'd apreciate it.

I'm probably going to have it upgraded to a -25G compressor for around $700..talked to the boys @ greddy and tney say that setup is good up to 600hp which seems a little higher than I excpect. I know that is a little pricy because I have source to get Garrets @ cost but I don't really want to change my whole setup again.

FYI I trapped 118 mph on a lazy 1/4 mile pass at 12.4. A long time ago with the non seq setup I trapped the same running around 18lbs the day after I dynoed 380 to the wheels...have the graphs if anyone is curious.

Other mods are everything you would expect, including water injection @ traction control..

1st post keep the thrashing to a mininum thx :-)

sillbeer

Yea, for the 13b the td06 20g has a pretty small exhaust housing. I bet you have pretty good response though? I believe the td06 25g is more suited for the 13b.

-Destin

drc

I make full boost around 3700rpm it seems...but seat of the pants I've driven cars with Apexi kit, GT35/40 kits and maybe its just me but I really can't tell any huge difference in response so all the talk of the ballbearing turbo's being it well I'm just not sure...I guess from a durability standpoint they are but other than that I just don't think they are all that. Having said that if I had to do it all over again I'd probably gotten a GT35/40 kit. For the time money and aggrevation this kit has cost me and is still costing me I'd been better off just getting one of the popular kits to begin with...but at the time 2k was a good deal for a new TD06H-20G kit. And on the up side I haven't blown up my engine...pretty hard when you only get 12lbs at redline :-)

I've replaced every gasket rebuilt the wastegate everything I could think of and still only 12lbs @ redline with boost controller on or off....only difference is with the boost controller on I can run like 17lbs but then it tapers down to 12lbs. Yesterday when I called greddy they said that turbo was good for 470hp but previous to that they told me it was only good for about 350hp which I think is about right if you figure my trap of 118 the math works out better. Thats also running 11.5 Air/fuel to redline and water injected. I may for the hell of it put the 14lbs spring in the waste gate but I don't think thats it.

I'm hoping somebody with the same setup has some #'s to compare to prove me wrong about the amount of power I can extract out that weeny little turbo but I think I'm just going to upgrade it to the 25G compressor and see what happens.

RedR1

iTrader: (5)

tons of great information I was hoping for. I really appreciate everyone's input, and please do add more if you can!

sillbeer

Turbines make different hp for piston engines than they do for rotorys. A friend of mine made 480hp on a td06 20g with 10cm exhaust housing on his sr20det. I would expect 350hp like you stated out of it on a rotory.

-Destin