shonuf

trany regearing

kevin,
aren't there any longer rear end ratios available? it seems as if it would be a simpler answer to short gears when there is markedly increased hp.
carlos

Kevin

The only way to swap the "rear end" gears is through a ring and pinion change.. There are more gearing options available vs ring and pinions sets..

I've had a few setback with key components of this project. One being the new case. Prior to machining the case, I found out that there was a major casting flaw. The case passed through many inspections prior to getting into my hands. It was just lucky to catch the flaw. I just received my "new" replacement case.

DocSlow

Wow, very interesting project you've got there. Good luck and keep up the nice work. I've heard great things about you and your hybrid turbos.

sharkster

This car is going to be on another level Plus I'm sure we're all going to keep on benefiting from you having taken apart, analazing and then improving upon what you see...

PS Joan told me you called (thanks so much for checking in on her like that- she really appreciated it as I did too!) and it reminded me of how long it's been so I'll have to catch up and call ya' this week!!

KompressorKev

any progress lately? would love to hear more about the project! this type of project is the kind of stuff automotive gearheads dream about one day doing. very awe-inspiring and the kind of stuff that we like to just sit down and read about for hours!

Kevin

Kev, thanks.. I have been busy building turbochargers.. However, we are progressing. I treated myself on my birthday, and purchased this GT3R carbon fiber intake.. It was covered with heat wrap. you can see the velcro insulators on the intake runners.. It came with the restrictors for Daytona.. I am looking for the individual throttle-bodies, if anyone knows of any for sale, please email me or PM me.

I have been busy on my Hyflow 2's.. Bolt a pair of these on.. For reference, I put a stock X50 K24 compressor wheel in the picture. One would probably start to build boost around 5500RPM's

t urbo

Wow,
They look like small jet engines. Kevin what do you expect your finished engine to rev too? What about lag?

KompressorKev

that intake is immaculate. i remember seeing it mounted on the gt3r race cars and just drooling over it. those k27's look huge. itb's would look and sound badass... i am aware of the multiple advantages of individual throttle bodies like volumetric efficiency, throttle response, a potentially less-turbulent intake manifold design, and more accurate and consistent density of air charge, but would you mind explaining how it is necessitated by your project and how it is beneficial at this power level? is the setup to reduce lag and provide more air? i have read of others using bored out stock throttle body or 996 n/a throttle body, etc. but in your case are itb's even more efficient? i mean i know itb's are great in various ways, but i have not heard about them much on turbocharged cars, as i thought i would, given that they have tremendous benefits in general? i cannot recall many turbocharged cars that use individual throttle bodies, and those that do, such as the r34 Skyline GT-R, when approaching big hp levels, convert to a single throttle body. is this an issue irrespective of 996 turbos and just applicable to the certain gt-r, or is it something to do with turbocharged cars? sorry if i am missing something elementary here. thanks.

Kevin

You named it.. Throttle response.. The bottleneck for the normal twin is actually the center plenum and runner at this power level. If you look at the intake it consists of the main plenum and the runners actually bolt to the plenum.. What's interesting about the intake, yes it is light, but the carbon is thick and reinforced, alot more than I figured. You can see the remaining 1/4" insulation still in some areas.

Kevin

Engine is designed for 8500 RPM's.. These turbo's won't see this engine, for some time. I have a set of K24/K27's that will most likely be installed first..

sharkster

Kevin I miss your posts Glad to see you posting... I'll be up and running soon. The funny thing is they still lag less than a Supra

Woodster

kevin,
what type of vehicles run k-27's stock?
great project, share what you can when you can!!
Marty

Jean

Marty, some race 993GT2's EVOs used to run 2 K27s. PSI Motorsport (Belgium) until now use them in their race GT2 conversions. Huge lag and only drivable for racing. The 964T uses a K27 turbo (1 only).

Nice intake Kevin.

Red9

Kevin,
what is current position of this project?

Kevin

Red9 it is a money PIT.. I've had to reconsider the displacement of this engine. I've had custom pistons made for it, but I am on the fence. I have some more pictures to post..