E30 Zone

more than 3.5 years later and still going strong, now in 1:43's at Phillip Island, and raced at Bathurst last weekend, had to start this race in 35th due to retiring on last lap in race 2 with broken half shaft while running 5th...got up to 10th-

on board from Phillip Island grand prix circuit...

my E36 M3 (3 litre) made 214rwkw, will make a lot more when it goes back together...

as reggid says, it will be detonation blowing the gaskets, drop compression, and/or pull timing or go to E85 fuel. I o-ring the blocks and use stock gasket for FI rather than use cometic gasket, gives a window for bad fuel etc, but is not a substitute for a good tune

on board from a hillclimb ...

the car raced at Phillip Island grand Prix circuit on the weekend, best time 1:46.2, still on 205/50/15 tyres, there is another 1.5 seconds at least in it yet, with 3.46 diff, car was hitting ~8400rpm in 1:1 5 th gear on the straight

around 165 mph!!!

most powerful NA M20 is this one I believe-

big dollar engine though

my father restored it 35 years ago, only requires rear number plate

before-

1927 Buick-

<race 1

<race 2

<race 3

didn't bother uploading race 4, no traffic or anything interesting

OEM Mahle 9.7:1 piston next to JE 14.5:1 piston

it twisted 180* before it snapped, the 60 weight oil, cold winter morning and cold temps that E85 keeps engine at all combined to snap it

the M20 ratios are for a 320i rally class, not much good for big hp, zf bolts straight up to motor, crossmember needs slight mod for slight angle change, and you have option of 4, 5 or 6 speed with ZF also, RRP is 4000euro for 5 speed, 4800 for 6 speed, then there is optional shifter, GST etc, I can...

ratios all listed here-
http://samsonas.com/?page_id=234

easiest option is E36 328i/3 litre M3 Zf case
price depends on current exchange rate, but cheaper than PPG/Holinger/Albins

no, was not a new shaft, and 60 weight oil was the main cause, it will now run a 30 weight oil, and a tool steel shaft, I have forgotten spring pressure on old setup, but was spiking a lot going over the nose, now has stock springs

I am an agent for Samsonas dog boxes

due to a broken oil pump drive shaft, new bottom end under way, top end still perfect, no sign of cam wear yet, after new bottom end goes in, Samsonas dog box is next ( I am Australian agent for them) here is a video from a 650bhp LS1 powered commodore of the E30's first race with this engine, car w...

stock M52 rods and crank, JE pistons are lighter than stock, engine note changes above 8500 indicating some bad harmonics ~ 8700rpm

has strong, useable power from 5000rpm to 8500rpm, and at it's first race meeting at Phillip Island last weekend, it performed very well for its first hitout, still currently has stock 260 getrag, now looking into samsonas close ratio dog box, or E36 M3 box, was dropping below cam range at siberia, ...

latest video, rather eventful meeting...

and added some stripes just for a change

pink bits on girls

-4.7 camber front, -3.0 rear
-2* toe front, 0 rear
12* caster

just to clear a couple of things up, Knight Engines did the head, and pipemax calculations, the owner (who also owns the dyno) and myself did the rest, there are a lot of little attention to detail things that all match up to make it all happen

loads of on board videos here-

http://www.youtube.com/user/morerevsm3?feature=mhee

next was some more improvements as I went along suspension overhaul with ground control double adjustable race setup and new bushes throughout, along with rear camber and toe adjusting kit http://i5.photobucket.com/albums/y171/morerevsm3/E30%20stuff/Picture003.jpg http://i5.photobucket.com/albums/y1...

built this a few years ago, built to Australian E30 racing regs http://www.e30racing.com.au/forms/E30%20Technical%20Regulations%20-%20Racing.pdf started with a 325E from ebay with an M tech1 kit and zender wheels http://i5.photobucket.com/albums/y171/morerevsm3/E30%20stuff/Picture008.jpg bought US s...

the guy that owns the car also owns the dyno, his previous race car, a 4.4litre Chrysler Charger group Nc (historic) car made 260.2 rwkw the day he sold the car, the new owner had the engine out and on an engine dyno for a baseline run a few days later (he lives 4 hour drive away, so made sense to u...

flow is only part of the story, 2 valve engines have a lot of swirl, which gives a faster, more complete burn and resists detonation better than 4 valve, 4 valve comes into it's own above 8000rpm where curtain area of the valves on 2 valver stops efficiency above that

I am in the long slow process of building an S50B30 race engine that should make ~ 450BHP@8700rpm :cool: injection does not give any more peak power than carbs, it improves driveability, the 2.8 M20 won't take full throttle below 5000rpm, or it just pops and bangs back through carbs due to reversion...

2,8 crank and rods, custom 14.5:1 pistons, E85 fuel, .550" valve lift, lots of duration, VERY modified head etc... http://i5.photobucket.com/albums/y171/morerevsm3/E30%20stuff/Picture011_zps82a0dfa8.jpg http://i5.photobucket.com/albums/y171/morerevsm3/E30%20stuff/Picture006_zpsa89dbba9.jpg http://i5...

Speedtouch wrote:259.1kW equates to 347.5bhp! Remarkable, from a carb'd M20.

...and NOT corrected to flywheel, that is ~ 400bhp

2.8L NA M20 can make good power....I'll just leave this here-

if you order the BMW part number, you recieve 8.8:1 pistons instead, the part number has been superseded, and I have had no luck with Mahle dealers either, they say nil stock, so was hoping someone on the other side of the pond may know of a dealer there with stock, no cars in aAustralia actually ca...

tried that, came up with nothing

anyone know where I can purchase a set of Mahle 0.5 oversize 9.7:1 pistons to suit M20B25 please? I believe they are Mahle part # 082 65 02

thanks

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Re: ZF dog engagement gears, might interest a few of you

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Re: Aussie version of spec E30 race car build

Re: Aussie version of spec E30 race car build

Aussie version of spec E30 race car build

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Re: 9.7:1 pistons

Re: 9.7:1 pistons

9.7:1 pistons