New TDO6H 2G20G (SBR)

[midnght]

I have just ordered my new turbo. It is a 20g tdo6h from slowboy.

My question is:

With only my current mods, what should I run my boost at.

My mods are:
Boost/ egt gauge
Greddy S
Greddy UICP & LICP
Manual Boost Controller

And What I have coming:
SBR 2G20G TDO6H
255lph
660 cc injectors
S-AFC


I am still on my stock SMIC and Exhaust, I promise they are next. I got a great deal for everything and had to jump on it. So any comments would def. be appreciated.

 

[peregrine]

22 psi with race gas.

 

[kpt4321]

Holy crap no.

With 660's, on race gas you can run basicially whatever boost you want. I would say like 26 psi.

On pump, something around 18 is probably best.

However, don't guess, and don't take our advice. Log the damned thing!

You know what's funny? The mods corrected your signature, and nthey used improper grammar.

...Kyle T.

 

[KRAZYKOREAN]

Wow...you got a bigger turbo like a 20g witout even getting a full exhaust yet...I.E. downpipe and exhaust..and running the SMIC...well that smic is going to be over worked like no other...I think you should just run around 16 or so on pump..just because..also the 660 are good for the 20g..but you have no exhaust man...get some exhaust shizznit

 

[candela]

Wow...you got a bigger turbo like a 20g witout even getting a full exhaust yet...I.E. downpipe and exhaust..and running the SMIC...well that smic is going to be over worked like no other...I think you should just run around 16 or so on pump..just because..also the 660 are good for the 20g..but you have no exhaust man...get some exhaust shizznit

Yo wor dup Dat Korean is always feelin' me... That smic is gonna be hotter than all hell... Cept Im feelin' more like no more than maybe 12-13psi with that turbo...ya herd

 

[midnght]

My thoughts exactly. But a good deal is a good deal so I jumped on it. Yes, next is an exhaust and FMIC together. It's just going to take a little longer to get these. I was only planning on running 13-14 till the exhaust then 16-17. With the FMIC is in 20 on pump gas. I use 93 octane here. It is the best we can get. Unless I make 'special trps' to the other gas station that is 30 miles away.

I would also like to hear what some of you have to say about my choice in turbo uprgrade. I wanted bigger (B16G) and for alittle more $ I got an even bigger (TDO6H) turbo. I was told it was highly efficient and runs just as, if not better than a 50 trim on pump gas. (Granted I would need to get the ex. and FMIC)

 

[midnght]

Does the greddy FMIC require a slimline fan? Is it absolutely a must or is it just recommended?

 

[peregrine]

Originally posted by midnght


I would also like to hear what some of you have to say about my choice in turbo uprgrade. I wanted bigger (B16G) and for alittle more $ I got an even bigger (TDO6H) turbo. I was told it was highly efficient and runs just as, if not better than a 50 trim on pump gas. (Granted I would need to get the ex. and FMIC)

a 20g thats as effecient as a 50 trim? on PUMP GAS?!?!??! hahahahahahahahahahahaha

 

[Slowboy]

a 20g thats as effecient as a 50 trim? on PUMP GAS?!?!??! hahahahahahahahahahahaha

I see someone has no experience with a 20g compressor wheel and a tdo6h turbine wheel

Regards

Mike Huml

 

[KRAZYKOREAN]

Originally posted by Slowboy


I see someone has no experience with a 20g compressor wheel and a tdo6h turbine wheel

Regards

Mike Huml

 

[Clipse]

:laugh:

 

[DCJ98GST]

I am confused I thought the 2G20G came with a TD05H turbine not the TD06H. Can a turbine that big even fit into a 7 cm mitsu housing? That is a very big turbine, it may be quite laggy.

-edit-

Yes it can fit in a hogged out 7cm ,
The old frank level 5 used this configuration. But this is with a 60 trim!

 

[Slowboy]

HE is actually getting the full SBR-20g, but the 2g20g can also come with the tdo6h turbine. Yes, it is quite large, but the turbine housing can be profiled to fit nicely. FP and others have been doing it for years!

Not real laggy with only a 20g compressor wheel. Kevin Jewer has my old tdo6h 20g that I made over 400 WHP with .... I think he ran into the 11's very easily in his 2g car. He seems to think it spools quite well, as do I.

Regards

Mike Huml

 

[DCJ98GST]

Sounds like it will be a very efficient turbo with pump gas. This set up sounds like it will give you extremely low exaust manifold to intake manifold pressure ratio which is good for pump gas power.

Midnight,

Make sure you do a full review once you get the turbo and supporting mods installed.

 

[midnght]

will do !!

The thing about me and my car is I am NO advanced tuner. I will be doing this with some help maybe someone around the area might want to help and give some advise. I know I am not done ,I am looking for a FAST daily driver. I wanted to have the potential to get MORE if wanted.

 

[98talonAWD]

Not sure what we are talking about anymore! HAHA... just kidding. The TDO6H is a pretty big wheel, but can be very efficient when used with 93 and 94 pump gas octane. Race gas would be better when you go to the track obviously, but pump gas will work on the street good.

Just my thoughts on this. Also- as far as a FMIC goes. Many people think that you NEED to run a FMIC when you upgrade to a bigger turbo. THIS IS NOT TRUE!!! You can run well into the low to high 11's with the stock 2G SMIC. Pretty impressive for a stock intercooler. Now of course the intercooler will be experiencing a mass volume of air through it's core, but it will still work fine around 15-19psi of boost depending on how you are tuned.

What turbo does everyone think is the best for a STREET/STRIP turbo?
a MUTT ETE43, FP green, BIG16G, 20G, garrett t3/t4, SBR 60-1, AGP series turbos????

just wondering what others are thinking?

Thanks all

TIM

 

[herostar]

I"d run like 13-14 psi at the most. At least spend 15 bucks and make yourself a test pipe for your exhaust...

 

[DCJ98GST]

Originally posted by herostar
I"d run like 13-14 psi at the most. At least spend 15 bucks and make yourself a test pipe for your exhaust...

Yea, I would be a little nervous about putting on that big of a turbo with a stock exhaust. You certainly wont get the benifits out of it.

I was reading about the expansion ratios of turbos and how the exhaust affects the pressure in the manifold. Having a restrictive exhaust really amplifies the pressure. Here is an example:

Say the expansion ratio of the hot side of the turbo is:
ER = 1.8

That means you need 1.8 times the pressure before the turbine to after the turbine to create your desired boost say 20 psi.

Pressure in the STOCK exhaust right after the turbo at high rpms say:
= 9 psi
Pressure of a high flowing exhaust right after the turbo at high rpms say:
= 3 psi
Atmosheric pressure:
= 14.5 psi

STOCK EXHAUST:
Exhaust Manifold pressure = (14.5+9)*1.8 = 42.3 psi total
or 42.3 - 14.5 psi = 27.8 psi gauge

Therefore 27.8 - 9 psi = 18.8 psi more pressure is needed in the manifold to drive the turbine

Notice that in this example the exhaust manifold pressure of 27.8 psi is greater than the intake manifold pressure of 20 psi that may create a little bit of exhaust gas reversion (not good for pump gas).

HIGH FLOW EXHAUST:
Exhaust Manifold pressure = (14.5+3)*1.8 = 31.5 psi total
or 31.5 - 14.5 psi = 17 psi gauge

Therefore 17 - 3 psi = 14 psi more pressure is needed to drive the turbine

Notice that in this example the exhaust manifold pressure of 17 psi is less than the intake manifold pressure of 20 psi that is REALLY good for pump gas power!

This is also why bigger turbos can flow more at the same psi. Because they are more efficient and have less of an expansion ratio.

So going to a free flowing exhaust does two things:

1. It adds to the Volumetric efficiency of engine by relieving back pressure from 27.8 psi to 17 psi.
2. Less energy is needed to drive the turbine 18.8 psi to 14 psi.

The bigger the turbo the more pressure will build up behind the exhaust and will amplify the exhaust manifold pressure.

 

[ac4g63]

wow, that was very informative. nice reply

 

[SPEEDY]

Originally posted by midnght
Does the greddy FMIC require a slimline fan? Is it absolutely a must or is it just recommended?

No...the Big GReddy fmic does not require a slimline fan. I run the big GReddy fmic, and I have no problems whatsoever, even in 90+ degree temps.

 

[kpt4321]

I do not understand why you guy are so afraid of running more than 12-13 psi on the stock exhaust. Sure, it will not be as effective as that much pressure would be with an aftermarket exhaust, but there is also no reason why he can't run that much boost. He has the fuel to do it, and it's likely that he won't really be flowing that much air anyway, so not too many worries there.

Just log the car though, seriously. Turn the boost up, watch the logger, tune, and see how it feels.


....Kyle T.

 

[midnght]

In the process right now in finding a logger to go with. The developer of the DSMLink lives 2 minutes away so maybe the dsmlink.

Does the Greddy Big FMIC go to the stock j pipe or will it bolt right up to the 20g?

It seems I was confused on the housing I purchased. No problem there, just have to figure out what is next. The setup isn't goingin till I get my o2 and 2g manifold ported or the evo combo and the rest of the exhaust. No point in doing everything in segments if I can wait a few weeks and do it all at once.

 

[SPEEDY]

Originally posted by midnght
In the process right now in finding a logger to go with. The developer of the DSMLink lives 2 minutes away so maybe the dsmlink.

Does the Greddy Big FMIC go to the stock j pipe or will it bolt right up to the 20g?

It seems I was confused on the housing I purchased. No problem there, just have to figure out what is next. The setup isn't goingin till I get my o2 and 2g manifold ported or the evo combo and the rest of the exhaust. No point in doing everything in segments if I can wait a few weeks and do it all at once.

The big GReddy fmic piping routes back to the stock location. Unless you had a elbow welded on to the 20g it won't bolt right up.

 

[midnght]

Originally posted by SPEEDY
The big GReddy fmic piping routes back to the stock location. Unless you had a elbow welded on to the 20g it won't bolt right up.

Thanks

Are there any FMIC Kits that go to the 20g without welding an elbow to it?

 

[SPEEDY]

Originally posted by midnght


Thanks

Are there any FMIC Kits that go to the 20g without welding an elbow to it?

NP! I'm not sure if there is any fmic's that will bolt right up to it, like I mentioned earlier the only way I know of, is if you have an elbow welded on to it, or if you could have ordered it with a rotated compressor housing, other wise I'm not to sure. Somebody feel free to correct me if I'm wrong here. Maybe someone else can chime in on the subject.