the vband option yes but not the twin scroll option it is 1 single 46mm wastegate. I don't want to take away from this thread though just throwing that out there lol.
4N Performance Twin Scroll short runner bottom mount ST kit
- Thread starter doublespaces
- Start date
the vband option yes but not the twin scroll option it is 1 single 46mm wastegate. I don't want to take away from this thread though just throwing that out there lol.
I couldn't find a twin scroll bottom mount kit on your website.
Thanks for chiming in. I know its hard to predict with the holidays, any ballpark estimate for public availability of the kit? Have you considered fitment of the GTX turbos or non EFR BW?
4N Motorsport
Specialist
So far first drive was today. Turned out way better than I expected. will post logs and Dyno numbers soon. Its an absolute beast only running on wastegate spring with jb4 st software map1 13psi. Full boost at 3900. I am Currently building jigs after the prototype has been tested fully. Assuming everything is going perfect I plan to start building these kits full time starting Jan 1st. I have considered fitting a Borg Warner turbo just haven’t gotten to it yet. I have a s362fmw that I run in my 4bt Chevy. 70 psi for over 3 years Still holding up lol. They are awesome turbos. I will bolt it up and get back to you guys on that. I have not attempted to fit a gtx series turbo yet that is something planned soon as well.
4N Motorsport
Specialist
So far beating the hell out of the car all day numerous cold and hot starts so far no 02 issues. I still plan on doing some modifications to the positioning but no problems off the bat.
Jesus man give the guys a break, this was their first day running the car.
He clearly said that was on wastegate spring only, no boost control and I doubt any spooling tricks with VVT either. He clearly said no O2 issues yet, but that he is going to add modifications to prevent this from being an issue in the future.
I still remember how shitty the 2010 Camaro was. Now a ZL1 embarrasses a 911 turbo, and is on the bumper of a 918 around a road course.
He clearly said that was on wastegate spring only, no boost control and I doubt any spooling tricks with VVT either. He clearly said no O2 issues yet, but that he is going to add modifications to prevent this from being an issue in the future.
I still remember how shitty the 2010 Camaro was. Now a ZL1 embarrasses a 911 turbo, and is on the bumper of a 918 around a road course.
4N Motorsport
Specialist
13psi 3900 is not horrible considering low timing and safety map. the turbo starts to light in the 2800-3,000 range. I am also running a 1.00 ar turbine housing. you guys sure love scrutinizing the shit outa this don’t you? Base 20psi tune starts tomorrow. I will slowly bump it up day by day And you’ll get some results by the weekend.
They'll scrutinize unless it's a CNC valve cover. Then they leg hump those guys furiously, even though not a single vendor has anything more than a CAD image to show several months, dare I say a full year, later.
Eesh
Agreed.
Vm/ACF top mount 6466 1.00AR divided does 20psi@3100rpm 6MT 4th gear pull.
Agreed.
Vm/ACF top mount 6466 1.00AR divided does 20psi@3100rpm 6MT 4th gear pull.
In a time long long ago now, when I first went ST, I wondered why some others we're getting significantly better spool time then myself. Until I realized they used 4th instead of 3rd lol.4th gear has a lot of load
Im running the kit now on my car. we haven't even tuned it just wastegate at 13psi Pure evil tuning will be helping with this. Still got couple more things left to make it fast ha all you guys know I do nothing but racing with my car. check it out on my page @1freakyfast335i
4N Motorsport
Specialist
I’ve been testing in 2nd gear. If I brake boost I can get it to spool fully at 3,000rpms. Still no tune on low timing and no vvt tricks gonna get a real tune and some timing tonight.
