• RWD

  • 240 + B6304 + turbo

Well, ever since seeing the beautiful 242 created by Mattias Vox, I always wanted to cram a straight 6 motor into a 240 and turbo it's brains out to make a street car that's just purely designed for fun.

I got my chance earlier this year when a nice 244 popped up for sale by local resident @gavinh.
Soon the research started, but as it happened, Gav himself was already building a straight six.

Cut to now, and i've managed to snap it up and now that motor resides in my garage, about to go into the car I bought from him originally haha.


First thing was getting it home, and stripping down the intake and exhaust sides.


I want to get some custom intake and exhaust manifold stuff made up by some guys i know in the industry so fingers crossed.

Next up comes stripping down the front of the 240 so I can take out everything I don't need and give it a clean up.

Glad it's not summer because that condensor has seen much, much better days.

Front end stripped off and ripped out the headlight washers as I don't personally like them and I wanna save as much as I can if possible. These cars are pretty heavy and I want anything unneccisary gone.

That's everything for the minute. I should have had more pictures but I was keen to get stuck in.
This build page will mainly be here because Drew made me, and I'm pretty sure he just wants me to make one so he can keep an eye on his competition ;) hahaha

I've got my mind set on getting this built done and ready for Racewars next year, so I've got a tight deadline!

Fingers crossed.


I'm sad and happy at the same time
In all seriousness this is going to be epic !
It will be and I'm glad Lokie @Mizuyaki is doing it and at a quicker time line ha I would ever have completed it in.
Very excited for this build, should turn out amazing. Give me a yell if you ever want another set of hands on the weekend, would love to work on this thing.
Check out @Ghettobird thread.
Very good to see “Lo-key” and yes... I’ll be taking notes ?
Going to need a lot of work to the bottom to hold together for one mile!
Throw the bottom end in the bin & source a very early T6 short block, eBay rods & keep the 960 head & you'll be almost half way to making 500 hp reliably

I toyed with the idea of building a T6, but they arent my thing

Happy to share some of my research if your interested
I'm basically just planning on running this motor until it blows and then sourcing a T6 and just bolt most of what I can straight back on.

In Perth, finding T6's is difficult.
Stock will take a few PSI, I wonder if the rods or the liners will die first?
Anywho - Should be an awesome build!

What management are you planning on running?
We only suggest this stuff because the bottom end will go bang over the first 1/2 mile you run, let alone the full mile, look at the ls cars and the fatalities they have every year! Should be able to get a block from Melbourne easily.
Vee_Que;c-143231 wroteWe only suggest this stuff because the bottom end will go bang over the first 1/2 mile you run, let alone the full mile, look at the ls cars and the fatalities they have every year! Should be able to get a block from Melbourne easily.
I've had zilch issues running 7psi from an HY35 on a stock B6304 block for some time now with E85
Good tune is everything with these... and even running MS has not killed it yet

The rods are made of butter... not as bad as the 9mm rods on a B230 but still weeksauce...

The T6 head is better than the B6304 head but the t6 cams are **** as compared to the B6304 cams
Its possible if not easy to modify the T6 head to let the B6304 cams but requires a trained operator to made some very interesting surface ground shims for the cam (for where the VVT stuff is otherwise located, not for the buckets)

Should you run the B6304 head
The T6 beehive springs are a very nice drop in upgrade that let you run a 7200RPM rev limit with the stock lifters very reliably

I'm still working on my NA B6304 build for one of my other rides and I really think I will hit ~200KW at the wheels on a daily drivable NA build... the motor has stupid potential in it
Which car is that Mike? As you are aware, full throttle runs over extended distances do cause issues that you won't see in a daily driver, even track days don't have 1m long straights often.
Vee_Que;c-143253 wroteWhich car is that Mike? As you are aware, full throttle runs over extended distances do cause issues that you won't see in a daily driver, even track days don't have 1m long straights often.
98 s90 sedan in the USA being driven by dad
He has >20,000km on it now with no issues

It's even been out for some extended top speed runs
280kph in a 960 can get interesting....
Philia_Bear;c-143258 wrote
Vee_Que;c-143253 wroteWhich car is that Mike? As you are aware, full throttle runs over extended distances do cause issues that you won't see in a daily driver, even track days don't have 1m long straights often.
98 s90 sedan in the USA being driven by dad
He has >20,000km on it now with no issues

It's even been out for some extended top speed runs
280kph in a 960 can get interesting....
Just saying, an S90 is always a sedan, a V90 would be a wagon. Terrible correction I know but saves typing sedan or wagon. Sorry!
Philia_Bear;c-143258 wrote
Vee_Que;c-143253 wroteWhich car is that Mike? As you are aware, full throttle runs over extended distances do cause issues that you won't see in a daily driver, even track days don't have 1m long straights often.
98 s90 sedan in the USA being driven by dad
He has >20,000km on it now with no issues

It's even been out for some extended top speed runs
280kph in a 960 can get interesting....
Pics?
Vee_Que;c-143316 wrote
Philia_Bear;c-143258 wrote
Vee_Que;c-143253 wroteWhich car is that Mike? As you are aware, full throttle runs over extended distances do cause issues that you won't see in a daily driver, even track days don't have 1m long straights often.
98 s90 sedan in the USA being driven by dad
He has >20,000km on it now with no issues

It's even been out for some extended top speed runs
280kph in a 960 can get interesting....
Pics?
Nope

A few different epa issues so agreed with dad about no pics posted about it ever
Can't even post a pic of engine bay? @Philia_Bear
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