Twin Turbo FR-S

[fst86frs]

Originally Posted by CSG Mike

The engine bay is very tidy, but I feel there is a sore lack of heat management with this setup.

Track days in Arizona showed other wise, I do have and upgraded radiator, stock fan shroud, tuned the fans to come in sooner, designed the intercooler to allow airflow to the radiator, accounted for an oil cooling system, and havent had any issues or any showing signs of melting, even thrown a code for running cooler than oem cruising down the highway and some of the cooler nights, everything is tidy, managed well, and accounted for even in the az heat in traffic

[sw20kosh]

Originally Posted by fst86frs

Track days in Arizona showed other wise, I do have and upgraded radiator, stock fan shroud, tuned the fans to come in sooner, designed the intercooler to allow airflow to the radiator, accounted for an oil cooling system, and havent had any issues or any showing signs of melting, even thrown a code for running cooler than oem cruising down the highway and some of the cooler nights, everything is tidy, managed well, and accounted for even in the az heat in traffic

Nice! How big is your oil cooler? Oil cooler size makes a big difference.

Do you have a stock bumper beam crash bar?

[fst86frs]

Originally Posted by sw20kosh

Nice! How big is your oil cooler? Oil cooler size makes a big difference.

Do you have a stock bumper beam crash bar?

Its a retrofitted oil/water cooler been working fine not sure if I will supplement with an additional when it gets further turned up and pushed harder. Also I do still have the stock crash beam that has trimmed and modified but still in there

[CSG Mike]

Originally Posted by fst86frs

Track days in Arizona showed other wise, I do have and upgraded radiator, stock fan shroud, tuned the fans to come in sooner, designed the intercooler to allow airflow to the radiator, accounted for an oil cooling system, and havent had any issues or any showing signs of melting, even thrown a code for running cooler than oem cruising down the highway and some of the cooler nights, everything is tidy, managed well, and accounted for even in the az heat in traffic

The same was said for many, many setups until the drivers started getting faster. Do you have a % WOT figure for hot lapping in the AZ heat?

If you can make it to the Chuckwalla 86CUP event, I'll cover your entry.

[fst86frs]

Originally Posted by CSG Mike

The same was said for many, many setups until the drivers started getting faster. Do you have a % WOT figure for hot lapping in the AZ heat?

If you can make it to the Chuckwalla 86CUP event, I'll cover your entry.

I havent come up with a % figure but when is this event? Link or info? I'd be down to go to chuckwalla!

[CSG Mike]

Originally Posted by fst86frs

I havent come up with a % figure but when is this event? Link or info? I'd be down to go to chuckwalla!

http://www.ft86club.com/forums/showthread.php?t=80202

[SnapOv3st3r]

Originally Posted by Koa

lol served.

all you naysayers got served.

P.S. it's not all about peak HP/TQ numbers bros just an FYI

Umm...why did you quote me as a Naysayer? No one said it couldn't make power or wouldn't. You are confused about the comments.

[Mikeez]

Originally Posted by Freeman

The owner is mute when it comes to power figures or a dyno plot of that set up. Seems like it's done more for the "whoa bro check this out" factor than performance. Just my opinion on that last part.

Twin turbo on a horizantal oposed engine does not perform well. Bigger turbo is a less laggy set-up than twin.

Twin turbo is not a performance oriented set-up for our car

[Freeman]

Originally Posted by Mikeez

Twin turbo on a horizantal oposed engine does not perform well. Bigger turbo is a less laggy set-up than twin.

Twin turbo is not a performance oriented set-up for our car

Which is what every tuner ive spoken to about a twin turbo set up has said.

Which is why it seems it was done more for the "whoa bro!" Factor.

Sent from my SAMSUNG-SGH-I317 using Tapatalk

[cdrazic93]

Originally Posted by Mikeez

Twin turbo on a horizantal oposed engine does not perform well. Bigger turbo is a less laggy set-up than twin.

Twin turbo is not a performance oriented set-up for our car

The '98 Legacy GT-B was an EJ20TT.
Not to mention every post 2000 Porsche turbo is a 3.8L H6 TT setup...

Twin turbos actually produce less lag than a single turbo, depending on configuration. If the single turbo is a gtx2867 and the twin turbo setup is a dual 3076 then yes the single would spool better.

[Mikeez]

Originally Posted by cdrazic93

The '98 Legacy GT-B was an EJ20TT.
Not to mention every post 2000 Porsche turbo is a 3.8L H6 TT setup...

Twin turbos actually produce less lag than a single turbo, depending on configuration. If the single turbo is a gtx2867 and the twin turbo setup is a dual 3076 then yes the single would spool better.

3.8 and 2.0 is different. 4cl, 6cl is also different. For our cars, twin turbo is not a recommendation but you know better

[cdrazic93]

Originally Posted by Mikeez

3.8 and 2.0 is different. 4cl, 6cl is also different. For our cars, twin turbo is not a recommendation but you know better

the EJ20T (subaru never quoted it being a TT) in the JDM spec Legacy's are still a 2.o 4 cyl sequential turbo setup... they have done it before .

[xwd]

FAT is known for making more exotic one-off setups. They built other twin-turbo Subarus before and built a twin-charged STI a long time ago. Not really entirely practical but definitely cool setups.

[Mikeez]

Originally Posted by cdrazic93

the EJ20T (subaru never quoted it being a TT) in the JDM spec Legacy's are still a 2.o 4 cyl sequential turbo setup... they have done it before .

I'm not sure if I understood you correctly, are you saying that a twin turbo set has been done to the EJ20T? If so, the FA20 Engine has also had few twin turbo set ups...

I was just saying that there is no benefit for a twin turbo. Though, one turbo is a more benefit gain. The way I think of it is that, the flow will difract. I might be wrong.