Page 1 of 75

Bennoz 6A13 Conversion

Posted: Tue Sep 09, 2008 4:34 pm
by Bennoz
Thought I'd make it official! 8)

Overall plan, is to do this on a budget & quickly. Keeping as much of the 6A13 as stock as possible. I want a car thats gonna have 200kws at the wheels & start every day, get me from A to B during the week & to C on weekends - without the need to be revved to 8,000rpm & massive hits of nitrous. My budget is $6 grand.

Out of the box, these things make 206kws at the flywheel, so thats about 150-160kws at the wheels. Thats with stock Legnum air boxes & standard Legnum exhausts... I've also read, these motors have a factory nitrided cranks (surface hardened) and some reasonably hefty internals.

Plan is to keep the factory turbos exactly where they are. Some minor modifications are required to do that, including relocating a few brake lines & moving the thermo fans from one side of the radiator to the other (& reversing the polarity.) Only thing Im gonna do to them is high-flow them.

Motor will be bolted to my FTO 5spd box. The box is being reco'ed with a few new bearing & syncros - and a Cusco MZ one way diff being put in it. The diff is being 'softened' up as mush as possible to make it more street friendly. We may also stiffen up the pressure plate of the factory clutch.

Motor will bolt to the existing mounts, only thing Im doing is having the rear lower mount done in polyurethane.

The turbo's will be plumbed directly into my free flowing 2.5" system. All we need to do is join up the 2 banks & run them into the exting setup.

The looms are apparently interchangable with little work required to integrate into existing FTO components. Im leaving that to the sparky thou, I hate electronics. The standard Legnum ECU is being used, in conjunction with a Haltech Interceptor piggyback.

As mentioned before, the Nitrous will also be plumbed back into the mix, only this time with a 30hp shot, dialled in to come on earlier in the rev range to aid spooling up the turbos.

And thats it! A good tune, wind the boost up a bit (but not too much, maybe 10-15psi) & she'll be hopefully back on the road in about a month.

The Legnum halfcut you saw in this thread, has now arrived:
http://www.ftoaustralia.com/modules.php ... ic&t=15463

We'll be starting work getting it in on Thursday :) We've already pulled the old motor out

Image
Image

New diff.

Image

Posted: Tue Sep 09, 2008 5:23 pm
by I8A4RE
FU&KEN Sweet man. I agree with everything your doing definitly the right way to do it.

My only concern is the nos. I was reading a while ago that nos tends to destroy plugs and is that not what happened to your last motor. When you menion about the plug in your last thread it made me remember. What are you gonna do to combat that?

Posted: Tue Sep 09, 2008 5:28 pm
by Bennoz
Erm, change them a little more often? :lol: 20-30 odd bottles of nos in a 100hp shot, 3 track days & 40,000kms kind of exceeded their life expectancy!

Posted: Tue Sep 09, 2008 5:36 pm
by I8A4RE
bahahahahahaah

Good luck man, i want a ride when you finished

*note to self* i really need to get my ass in gear and get mine finished

Posted: Tue Sep 09, 2008 6:01 pm
by Delvance
Plan seems pretty solid, though is the FTO gearbox able to handle the 6a13's power and torque ?? Or are you getting the gears shot peened etc ? I never realised the fto box was that strong..

Posted: Tue Sep 09, 2008 6:04 pm
by Bennoz
You cant shot peen gears, we've just beefed up a few of the internal bearings. The box will be fine, the driveshafts are the weak link.... which is fine by me, I can swap one of them out in less than an hour :) Which is a hell of a lot quicker than a box swap!

Posted: Tue Sep 09, 2008 6:18 pm
by Delvance
Ahhh! Fair enough. Better get a few spare driveshafts just in case :lol: Though with the LSD in it, the torque load should be distributed to two driveshafts instead of just the normal passenger side front wheel huh ? That should help a bit! Still a lot of torque though, especially with the nos giving it the low end rush/sudden torque hit followed by the turbo torque wave.

Definitely will be interesting, goodluck with it!

Posted: Tue Sep 09, 2008 6:54 pm
by vipfto
Thats exactly the same way i will be going! like i have said before i cant see it being a 25k job all be it will be saving a lot of dollars in labour ;)

keep updated (wish i was in sydney to help and make notes along the way) :x

Posted: Wed Sep 10, 2008 10:31 pm
by Bennoz
New motor now out of half cut :) (pic was just before we pulled it)

Image

Posted: Thu Sep 11, 2008 8:27 pm
by jonowong
that was my engine!

Posted: Thu Sep 11, 2008 10:40 pm
by akumi
bennoz, any reason why you don't want jeff's 6a13 fto which is for sale?

Posted: Thu Sep 11, 2008 10:57 pm
by nvr2low
proberly because bennoz is crazy and wants to do his own red rocket monster of a fto damn this thing going to be crazy maybe i should do the same to mine if i could find another half cut i would

Posted: Thu Sep 11, 2008 11:05 pm
by jonowong
akumi wrote:bennoz, any reason why you don't want jeff's 6a13 fto which is for sale?
because it just wont be the same...

your car is your car!

Posted: Thu Sep 11, 2008 11:14 pm
by akumi
true true, sometimes it's worth all the wait during the modification process but at the end of the day it's still your car.

Posted: Fri Sep 12, 2008 9:16 am
by Bennoz
Mainly because I've spent a kazillion dollars on suspension, brakes & wheels & tyres. Plus as mentioned, my car is my car. I dont want to give away all my little touches. I also dont need 400hp, 300hp will be fine.

Posted: Fri Sep 12, 2008 9:50 am
by FtoSam
Bennoz wrote:I also dont need 400hp, 300hp will be fine.
Im Sig'ing that now so i can say i told you so in 6 months...

Posted: Fri Sep 12, 2008 9:52 am
by Bennoz
:lol:

Posted: Fri Sep 12, 2008 5:06 pm
by Hipsi
I'll be watching Ben ;)

Posted: Thu Sep 18, 2008 4:10 pm
by Bennoz
New engine mount arrived today :)

Gearbox is supposed to arrive today too, so will be test fitting in the next few days :)

Image
Image

Posted: Thu Sep 18, 2008 8:22 pm
by yano
Is that basically the same as the stock fto mount just made in polyeurethane or custom?? Looks a little bigger than normal. That's obviously the cross member there which has 2 mounts, is it just the front one you got made up or both?