1000+ Twin Turbo Cadillac CTS-V Build

[HappyMidget]

eliot said:

HappyMidget said:

I would guess 900+ assuming decent intercooling

LS3 N/a produces ~420 bhp at atmospheric, 16 psi is about 1 bar, which is double atmospheric - so in theory engine can now produce double the power - 840bhp , less losses takes you closer to 800 i would of thought.
Either way, turbos and intercoolers are the right way to go for big power - look at how many drag cars have ditched chargers for turbos.

Don't forget you are comparing against a stock cam there though. With a proper fi cam you drop boost pressure and increase power.

With an interchiller on a valley blower you can get single digit iat2.

[HappyMidget]

psi boost can give 1000bhp on race gas http://www.lsxmag.com/news/video-940-horsepower-wh...

[chuntington101]

Stock LS is not a comparison as we don't know what been done to this engine. New heads cam etc can all increase the power over what the Stock motor will be making. Plus you don't know the compression of the engine.

No inter chiller on this thing as he is running a Propper air to air unit!

[minime68]

chuntington101 said:

Stock LS is not a comparison as we don't know what been done to this engine. New heads cam etc can all increase the power over what the Stock motor will be making. Plus you don't know the compression of the engine.

No inter chiller on this thing as he is running a Propper air to air unit!

^^^^THIS. Comparing a built engine to a stock LS3 doesn't do much for estimates. I got ethanol on the car last night (about a 50% mixture) but the flex fuel sensor wasn't working. I made a few pulls to see how it likes 17 psi and it did not register any KR or ill effects.

Obviously this was on the petrol timing tables as the sensor was not switching the map. Once I get the sensor to work, timing tables will be aggressive and this bad boy will be stupid fast.

[chuntington101]

minime68 said:

chuntington101 said:

Stock LS is not a comparison as we don't know what been done to this engine. New heads cam etc can all increase the power over what the Stock motor will be making. Plus you don't know the compression of the engine.

No inter chiller on this thing as he is running a Propper air to air unit!

^^^^THIS. Comparing a built engine to a stock LS3 doesn't do much for estimates. I got ethanol on the car last night (about a 50% mixture) but the flex fuel sensor wasn't working. I made a few pulls to see how it likes 17 psi and it did not register any KR or ill effects.

Obviously this was on the petrol timing tables as the sensor was not switching the map. Once I get the sensor to work, timing tables will be aggressive and this bad boy will be stupid fast.

How much boost are you aiming for when running meth? Guys in the US are pushing WELL in to 20's on E85.

[minime68]

16psi. Running an M10 nozzle at the moment. I don't want to be driving around at 1000hp everyday so 14-16 psi will be for daily duty. On fun/ track days I'll bump it up to 20-22 depending on fuel

[minime68]

minime68 said:

16psi. Running an M10 nozzle at the moment. I don't want to be driving around at 1000hp everyday so 14-16 psi will be for daily duty. On fun/ track days I'll bump it up to 20-22 depending on fuel

Well, now that I tried some E85 it is safe to say it will be running 20psi + when at events etc. Pulls like a freight train!

[minime68]

So finally got a chance to Dyno. Made 1155 to the rear wheels with 20 pounds if boost and E60 ethanol content. Similar numbers for TQ as well.

[5ohmustang]

Holy st. How well is it hooking up?

[minime68]

chuntington101 said:

How much boost are you aiming for when running meth? Guys in the US are pushing WELL in to 20's on E85.

Hooks surprisingly well for the power. Toyed with a 2015 ZX14r last night on the autobahn and drove right past him after 130 ish

[HappyMidget]

Real good numbers there. Bet you are well chuffed!

[chuntington101]

Yeah that's some killer power! Looks to come on boost pretty early from the graph as well!

[minime68]

chuntington101 said:

Yeah that's some killer power! Looks to come on boost pretty early from the graph as well!

Not much lag here. But boost does come in HARD! Drives well on the street too. You would never be able to tell what's about to hit you.

[chuntington101]

minime68 said:

chuntington101 said:

Yeah that's some killer power! Looks to come on boost pretty early from the graph as well!

Not much lag here. But boost does come in HARD! Drives well on the street too. You would never be able to tell what's about to hit you.

Any vids of the beast in action yet?

[minime68]

Multiple......let me see if I can upload a few autobahn pulls onto youtube.

[minime68]

Traction issues for most of these runs...starting from 60mph. Bike is a 2015 zx14r.

https://www.youtube.com/watch?v=97Ts8UocZ40

Playing with a supercharged mustang.

https://www.youtube.com/watch?v=d8-I-V7mnag

First few weeks the setup was running. I had some issues and running 13-14psi. He wants a rematch after a remap

https://www.youtube.com/watch?v=w9hEWrWuGKA