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Posted by: Cracker Apr 28 2016, 07:35 PM

Heading to Road Atlanta this weekend to stretch the teener's legs...here is the final run of the tuning session. We left 50-60 rwhp on the table in exchange for an ultra-safe tune. It runs on straight 93 octane pump fuel...

Happy camper.

Tony


https://www.youtube.com/watch?v=RG9VBwcXAMg

Posted by: Mueller Apr 28 2016, 07:58 PM

Too embarrassed to post the dyno numbers?

Have fun this weekend!

Posted by: r_towle Apr 28 2016, 08:21 PM

Posted by: 396 Apr 28 2016, 08:56 PM

Interesting post, I'm a little confused as to why one would leave 50-60 rhp on the table...is it because your breaking it in or your cooling system can't manage some hi temp?
Car is going to the track - correct?
Anyway enjoy.

Posted by: porschetub Apr 29 2016, 01:22 AM

Tony that thing is a weapon must be a crazy drive ,thinking 500rwhp as a guess...don't know anything about V8's so don't flame me

Posted by: Cairo94507 Apr 29 2016, 05:56 AM

Love that car and the craftsmanship that went into it. Have fun.

Posted by: Cracker Apr 29 2016, 05:57 AM

Mueller - Its all good and thanks for the well-wishes. The car made 531 rwhp...

0396 - Between the sustained rpm demand placed on a road coarse engine, pulling timing and having a conservative AF ratio is "kind to the engine". We are also using pump gas (93) in the car and wanted to KNOW that we are not getting into detonation (the engine is 11.8:1 too). There is also the transaxle issue - I'm exploring new territory with this and know we are already beyond what is acceptable...time will tell how that works out.

Tub - Yeah. I might want to be a little careful with the throttle..ehh? Its actually amazingly easy to drive...if my wife could actually see over the steering wheel, she could drive it.

The power to weight ratio is (crankshaft corrected) is 4.1:1 - as its tuned (#2425/590). Perfect!

T

Posted by: 1stworks Apr 29 2016, 07:25 AM

super cool.
Thanks for sharing.

Posted by: RobW Apr 29 2016, 07:42 AM

In car video please!

Posted by: JoeD Apr 29 2016, 07:49 AM

Wow- awesome Tony! Have a great run at the track. I want to get out and see you run that beast one of these days!!!

Posted by: Krieger Apr 29 2016, 08:48 AM

That's freaking awesome! Go live the dream!

Posted by: Randal Apr 29 2016, 08:59 AM

WoW, 531hp to the wheels. Now that should be fun. And the torque (!) which ought to be good pulling everyone out of corners.

Hate to hear you're thinking about a different trans-axle, especially after sorting the shifting to glassy smooth.

Is there an Albins in the future?

Posted by: yerpants Apr 29 2016, 09:03 AM

Beautiful. My 70 rwhp is offended.

Posted by: 396 Apr 29 2016, 09:11 AM

Thanks for the info, smart decision. Best at the track.

Posted by: r_towle Apr 29 2016, 06:40 PM

What transaxle are you running?

I was watching a show the other day and race transaxle used straight cut gears.
I wondear if that would be th direction to go when pushing that much torque?

The weak spot at the end of,the day is that thrust force on the tranny.

Posted by: andys Apr 29 2016, 07:08 PM

Tony,

Make sure to give us a full weekend track report. I can't remember, what are you doing for oil control for the track?

Oh, and yes, your car sounds good.

Andys

Posted by: Cracker Apr 29 2016, 07:50 PM

Joe - You are always welcome to be my guest - this weekend if you'd like - there is no cost to get in - if you have children, it would be a hit!

Andy - Hello. Its been quite a while...I'll call you next week to discuss the event. I installed an Aviad/ARE 3-stage dry-sump (9 quart tank). We pass that through two large oil coolers (36 & 40 row). Thank you too for you compliments...

Rich - I'm running a G87-20 (Boxster S 6-Speed) - I have a theory regarding keeping it alive, at least for a term. It will be a wear item ultimately.

Thanks to everyone else for your kind words too.

Tony

Posted by: wndsnd Apr 29 2016, 08:05 PM

Wow, I hope that wing gives you enough down force!

Posted by: Catorse Apr 30 2016, 09:09 AM

As the owner of a car with a built LS3 that makes 820whp (not in a 914), there are plenty of transmissions that will handle that power, however many won't fit into a 914. On mine, I have the stock 6 speed that came with the car (2011 Camaro SS) and it has never even made a peep.

In your case I would be looking at a 930 trans or a G50 off a 965 at the minimum. A motor like mine is capable of shearing off every gear on a ring an pinion and exploding weak axles, as is yours!

nice build!!!

Posted by: colingreene Apr 30 2016, 02:11 PM

what afr and timing?
You know running retarded timing actually will risk burning the valves.

Posted by: Mark Henry Apr 30 2016, 03:57 PM

Straight cut gears would be freakishly noisy. OK if it's race only...



Takes a fair bit to flip a 930, but it's a stout box. $1250 per gearset a few years back.
IIRC Britain put a 930 in his subi 914, I think there's a thread somewhere..
Guy I know is building a Factory Five GTM, they use a g50 upside down. I've had both apart, 930 has bigger gears than a G50, but the G50 fixed the 901 1st gear weak link.