[GTRG2]

What engine management system is the Alpha 12 running ?

 

[changster]

What engine management system is the Alpha 12 running ?

Motec M1 tuned by Doug@Topspeed

 

[GTRG2]

Motec M1 tuned by Doug@Topspeed

She's moving brother ! Awesome ride

 

[changster]

Thanks!

 

[bm11]

"No one will play with me!" Hahaha, amazing car!

 

[ThatOtherGTR]

That video says the guy let off. It looks like he let off right around the time he came into frame on the camera. Surely you guys don't think he was in it the whole time or he didn't have issues.

Or was the text in that video wrong?

 

[Goonthree]

First race he let off, 2nd race he got ahead and stay in it. I would guess the ET difference is about 1 s in the quarter mi or about 14 car length/ 220 ft. Which is HUGE.

 

[ThatOtherGTR]

I only saw one race. Maybe it's a problem on my end. I was responding to the comments as if there was only the one race where he let off. Lol.

 

[ThatOtherGTR]

I see it now. Lol.

 

[PureSwank]

Really good balance power vs traction for the street. I pretty much never have to worry about traction except when launching on the E85 map.

How much boost and power do you put down on that 4.4L when you wanna lay the wood? Correct me if I'm wrong but wasn't it you who just broke a record of some sort from a rolling launch? Good build brother.

Sent from my SM-N900P using GT-R Life mobile app

 

[changster]

How much boost and power do you put down on that 4.4L when you wanna lay the wood? Correct me if I'm wrong but wasn't it you who just broke a record of some sort from a rolling launch? Good build brother.

Sent from my SM-N900P using GT-R Life mobile app

It made a little over 1300whp on TSM's dynojet at 33psi, and that's the boost I run on my E85 map.

As far as records, well there are too many records out there if you give it enough qualifiers. But according to the this board's official 60-130 records, my 3.22 60-130 is the quickest Alpha 12 or GT35 based turbo. I watch those Russian videos of the blue Alpha 12 where it has video pbox' with the 100-200kph 200-300kph in there and my car consistently is faster...

Who cares though as the ETS car and Alpha 20's run it under 2 seconds!

TSM really built me a great Alpha 12. It's so damn streetable and comes up so quick. The torque curve is phenomenal.

 

[changster]

...

 

[PureSwank]

It made a little over 1300whp on TSM's dynojet at 33psi, and that's the boost I run on my E85 map.

As far as records, well there are too many records out there if you give it enough qualifiers. But according to the this board's official 60-130 records, my 3.22 60-130 is the quickest Alpha 12 or GT35 based turbo. I watch those Russian videos of the blue Alpha 12 where it has video pbox' with the 100-200kph 200-300kph in there and my car consistently is faster...

Who cares though as the ETS car and Alpha 20's run it under 2 seconds!

TSM really built me a great Alpha 12. It's so damn streetable and comes up so quick. The torque curve is phenomenal.

You got a pretty stout build. Is your 1300awhp e85 map a conservative tune or is that maxed out? TSM usually tunes their GTR's upwards of 40+ psi with builds like yours just in case a special racing event comes up.

 

[FastFrank]

You got a pretty stout build. Is your 1300awhp e85 map a conservative tune or is that maxed out? TSM usually tunes their GTR's upwards of 40+ psi with builds like yours just in case a special racing event comes up.

Depending on what crank is used with the 4.4
The Manley is "only" good to around 1300WHP from what info I have seen.

 

[changster]

You got a pretty stout build. Is your 1300awhp e85 map a conservative tune or is that maxed out? TSM usually tunes their GTR's upwards of 40+ psi with builds like yours just in case a special racing event comes up.

My dyno sheet was at 33psi, which is what I run in the street as well.

 

[changster]

Depending on what crank is used with the 4.4
The Manley is "only" good to around 1300WHP from what info I have seen.

I run the Bryant Racing crank. The best

 

[FastFrank]

I run the Bryant Racing crank. The best

That is a great crank!!
I'm jelly ;-)

TSM has done some modified bigger downpipes etc... on some A12's and were able to extract some more power does your car have that done?

 

[changster]

That is a great crank!!
I'm jelly ;-)

TSM has done some modified bigger downpipes etc... on some A12's and were able to extract some more power does your car have that done?

Nope. I just have the standard A12 kit with the 0.82 A/R hot side and 3" downpipes. That's why we just run 33psi which was good enough for a 3.22 60-130mph time.

 

[PureSwank]

My dyno sheet was at 33psi, which is what I run in the street as well.

Is their a reason you didn't go with more boost? I've seen various TSM GTR's with 4.1's A12's running 40 pounds. You got a 4.4L A12 with a Bryant Crank to support the power. What about the tranny? Gears? rods? Manifold? etc etc?

 

[changster]

Is their a reason you didn't go with more boost? I've seen various TSM GTR's with 4.1's A12's running 40 pounds. You got a 4.4L A12 with a Bryant Crank to support the power. What about the tranny? Gears? rods? Manifold? etc etc?

It is pretty much out of steam at 33psi. We left maybe 2psi on the table as a margin of safety. Remember boost is a measure of resistance. Power is about how much airflow gets into the engine. The 4.4 liter just generates the power earlier and faster at lower boost. This means the turbos are flowing the same amount of air to generate X power at 33psi instead of 38psi or whatever. Here's a dyno sheet comparing 2 Alpha 12's on the same dyno (but different day). Blue line is my 4.4L and the red line is a 4.0 liter Alpha 12. Both cars have pretty much the same mods on the intake and exhaust side.

As for your question on the mod list - well it's the "standard everything." Shep stage 4, intake manifold, heads, big cams, 12 injectors on ethanol, 102mm exhaust, Motec, etc.