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Future of KOH 4400 chassis/car development?

Tech Tim said:
$15K USD for the engine block alone! :eek:

Unfortunately it is a dry block, designed for drag racing, so it wouldn't work for what we do very well.
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One of the billet block makers is coming out with a high quality cast EJ block that has closed deck and all the racing bells and whistles.

It's gonna be a little cheaper but not much. Still 10k+.

IIRC there's some downsides to a billet block having to do with material expansion/contraction and whatnot which is why they're making a cast one. It's not a cheaping out thing.
 
mobil1syn said:
Justin is getting the LMF car and the according to wayes via the live stream nick allegri is getting an IFS car. interesting side note allegri is not on the race results.
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Allegri is building a big block IFS car. He's also planning to keep the 4800 car. He told me before KOH that he has too much time and money wrapped up in getting the 4800 car dialed to sell it for market value. After KOH he told me he's gonna go back and win the thing.

The IFS car is gonna be more like the trophy Jeep or Shannon's old Class 1 car. Something slightly bigger than you'd want for KOH, but that he can go race some bucket list races in, like Mint 400 and V2R.
 
Jeffh555 said:
Allegri is building a big block IFS car. He's also planning to keep the 4800 car. He told me before KOH that he has too much time and money wrapped up in getting the 4800 car dialed to sell it for market value. After KOH he told me he's gonna go back and win the thing.

The IFS car is gonna be more like the trophy Jeep or Shannon's old Class 1 car. Something slightly bigger than you'd want for KOH, but that he can go race some bucket list races in, like Mint 400 and V2R.
Click to expand...

tell him to buy a 2 seater from UFO
 
My kid Dallas just texted me some AI results:

Mercedes-AMG M139 2.0L Turbocharged Inline-4: This engine, found in the Mercedes-AMG CLA45 S and GLA45 S, produces a whopping 416 horsepower and 369 lb-ft of torque. It's the most powerful mass-produced 4-cylinder engine in the world.

Volvo B4804T5 2.0L Turbocharged and Supercharged Inline-4: This engine, found in the Volvo S60 T8 Polestar Engineered, produces 415 horsepower and 494 lb-ft of torque thanks to a combination of a turbocharger and a supercharger.

Mustang EcoBoost HPP 2.3L Turbocharged Inline-4: This engine, found in the Ford Mustang EcoBoost HPP, produces 330 horsepower and 350 lb-ft of torque.
- I would guess this is the same (or very similar to) as the Bronco Ecoboost 2.3

Honda Civic Type R K20C1 2.0L Turbocharged Inline-4: This engine, found in the Honda Civic Type R, produces 306 horsepower and 295 lb-ft of torque. It's a high-performance engine that's also relatively fuel-efficient.
 
ok so engine is selected, eco boosted 2.3

on to the transmission, is it just a matter of finding someone smart enough to make it a standalone contoller for the 10speed or do you just fall in line with a th400?
 
mobil1syn said:
interesting side note allegri is not on the race results.
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1707413641174.png
 
mobil1syn said:
ok so engine is selected, eco boosted 2.3

on to the transmission, is it just a matter of finding someone smart enough to make it a standalone contoller for the 10speed or do you just fall in line with a th400?
Click to expand...

I'd think a 10 speed is what we want but how much of a weight penalty is it vs a TH400 vs a 6spd?
 
mobil1syn said:
Justin is getting the LMF car and the according to wayes via the live stream nick allegri is getting an IFS car. interesting side note allegri is not on the race results.
Click to expand...

Interesting... Justin was over at my house 6ish months ago talking about ifs and doing more short course stuff.... but I did notice he had an ifs bulkhead up for sale on fbmp
 
mobil1syn said:
ok so engine is selected, eco boosted 2.3

on to the transmission, is it just a matter of finding someone smart enough to make it a standalone contoller for the 10speed or do you just fall in line with a th400?
Click to expand...
I see some people doing stuff on google.
10sp should be totally doable.

SLOWPOKE693 said:
I'd think a 10 speed is what we want but how much of a weight penalty is it vs a TH400 vs a 6spd?
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234lbs says google !!!
 
TH400 is 135 lbs. I think the 8 speed Jeep/Ram trans we talked about earlier is close to 200.
 
Bebop said:
I see some people doing stuff on google.
10sp should be totally doable.


234lbs says google !!!
Click to expand...

Damn that's heavy.

So our theoretical drivetrain weights:

Engine 320lbs

Transmission 234lbs

SCS single speed case 90lbs

So roughly 650lbs total for the drivetrain. That isn't horrible for 350hp and 10 speeds.
 
LS3 is 400lbs
With a TH400 and an Atlas you're lighter than 650 :homer:



I'm telling you, we need to go a lot lighter. Pro R (as much as I hate CVTs) is about the perfect package.
 
Bebop said:
LS3 is 400lbs
With a TH400 and an Atlas you're lighter than 650 :homer:



I'm telling you, we need to go a lot lighter. Pro R (as much as I hate CVTs) is about the perfect package.
Click to expand...


I wonder what the new Maverick R engine/trans weights and if the rear diff is seperate
 
Jeffh555 said:
Run it backwards, use the rear diff as the front diff, 2 gear portals to make it go forward.

I don't know where the driver or his two codrivers sit.
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I like this a lot.
Like a lot a lot.

Great fucking idea ! :smokin:

No co driver. That's where the rad and exhaust and all kind of other crap goes.
We making a LIGHT car.
 
Bebop said:
LS3 is 400lbs
With a TH400 and an Atlas you're lighter than 650 :homer:



I'm telling you, we need to go a lot lighter. Pro R (as much as I hate CVTs) is about the perfect package.
Click to expand...

Any idea what a complete Pro R engine and transmission weigh?
 
Treefrog said:
What else can be done to reduce solid axle unsprung weight? Different materials for housings, axle shafts, or knuckles? Better designed trusses? Full fab axle housings instead of tube? Less power? Smaller tires? Smarter drivers? TTB?
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Aluminum knuckles, more complex fabricated housings with varying material thickness and higher strength materials, but gun drilled axles and aluminum thirds are already a thing. The biggest thing is reducing overall weigh and potentially tire size as well that could allow smaller axles to become viable.


Sean said:
Is anyone running aluminum 3rds on the 9/10" fabbed housings with a good skid (GearWorks and other people make them, though they'd be easy enough to fab yourself) and having them survive something as taxing as KOH? It wouldn't save a ton of weight but pretty significant compared to the nodular iron ones.
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Tech Tim said:
Biggest problem with aluminum 3rds would be flexing of the ring and pinion in the case.

Better through bolt the main caps through the housing.
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I am pretty sure the Tube Works CrossTie XLP holds up well. They claim 24 lbs of weight savings and only 66Lbs for a complete 4.11 10" third.
TW-CrossTie XLP Billet Ford 9" / 10" Third Member Extreme Race System - Tubeworks
Capture.PNG
 
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