Grey Mare - S197 Turbo 3V Holley Terminator X Max Final Dyno run

[gzbs197]

Final dyno run before I took it to get the 8.50 cage installed. Decided while it is there to have Jason convert the exhaust to a 4" bumper exit as well. Will put it back on the dyno after that.

495 HP / 505 TQ on 14.3 psi (10 spring / 5 psi dome commanded) on a non-lockup converter.


https://youtu.be/FntuB38C-Eg

[k062693w]

Nice !!!

[NXcoupe]

Want to note that this should have been much higher but his full exhaust acts like someone stuck a potato in it at 4500-5k. Should be an animal after Jason works his magic and my tune can do its thing.

[draggin50]

Want to note that this should have been much higher but his full exhaust acts pike someone stuck a potato in it at 4500-5k. Should be an animal after Jason works his magic and my tune can do its thing.

We've seen what an exhaust can do to a turbo car. Crazy!

[redfirepearlgt]

very very nice

[gzbs197]

Thanks Chad.

[89notch]

Nice what size exhaust is on it now?

[JIMS SVT]

Did you make the pulls with the air filter on the turbo still?

[gzbs197]

JIMS SVT - There is no air filter on the turbo - just a turbo guard screen.

89notch - its 3" coming off the manifolds then back to the stock over axle tubes and then FRPP GTA mufflers.

[JIMS SVT]

JIMS SVT - There is no air filter on the turbo - just a turbo guard screen.

89notch - its 3" coming off the manifolds then back to the stock over axle tubes and then FRPP GTA mufflers.

Have you tried to remove it? I had a issue years ago with a screen on my turbo.

[89notch]

JIMS SVT - There is no air filter on the turbo - just a turbo guard screen.

89notch - its 3" coming off the manifolds then back to the stock over axle tubes and then FRPP GTA mufflers.

I made right at 1k to the tire with a 3 inch downpipe all the way back to tailpipes. I think your problem might be that 68mm exhaust wheel. The 4 inch exhaust won't hurt but I would be willing to bet that 68mm is causing some serious back pressure.

[gzbs197]

Have you tried to remove it? I had a issue years ago with a screen on my turbo.

it dyno'd pretty close to the same with no screen on the stock ECU on a locked converter. There is a 4" pipe that goes to where the factory airbox was to get cool air from the fender. I don't think it is causing an issue currently.

[gzbs197]

I made right at 1k to the tire with a 3 inch downpipe all the way back to tailpipes. I think your problem might be that 68mm exhaust wheel. The 4 inch exhaust won't hurt but I would be willing to bet that 68mm is causing some serious back pressure.

It could be. The plan is to replace the turbo after the motor is built - right now that 68 will make more than enough boost to send a rod out the SBE. Decided to do the 4 inch now since it was at fab and same time down the road. Plus it add's the "cool factor" as well.

[NXcoupe]

I guess we'll see what the issue was after the exhaust work is finished. You guys have probably never seen a 3V turbo kit before, they have about 3 times the hot side tubing of a normal turbo kit and his mufflers were not straight thru mufflers.

[JIMS SVT]

You guys have probably never seen a 3V turbo kit before.

I built one that was the first to go 8’s and eventually went 7.89

[NXcoupe]

Nice! This probably isn't like the one you built. This is similar to an On3 kit, if you've ever seen one of those.

[redfirepearlgt]

I built one that was the first to go 8’s and eventually went 7.89

:jawdrop:NICE!

[89notch]

It could be. The plan is to replace the turbo after the motor is built - right now that 68 will make more than enough boost to send a rod out the SBE. Decided to do the 4 inch now since it was at fab and same time down the road. Plus it add's the "cool factor" as well.

I would put a 999.00 ls7675 on it I bet it fixes it. I bet your back pressure is sky high with the 68mm wheel.

[draggin50]

I would put a 999.00 ls7675 on it I bet it fixes it. I bet your back pressure is sky high with the 68mm wheel.

Those are hard to beat really for the price. I was gonna pick one up myself.

[gzbs197]

I don’t know if a new turbo will be in budget for this year. That 8.50 cage and install is about going to tap me out.