Clevo120Y

3 manifolds would be needed, using cylinder runners 3 & 4 like suggested above, the first manifold you would have to cut off 1,2,5 and 6 but leaving the mounting flange behind to weld the other runners to so to keep the correct bolt pattern for the head then weld the other 3 & 4 sections on and join the middle sections together and block off the ends, sounds simple but would be a heap of work and would cost $$$ to get done properly.

3 manifolds would be needed, using cylinder runners 3 & 4 like suggested above, the first manifold you would have to cut off 1,2,5 and 6 but leaving the mounting flange behind to weld the other runners to so to keep the correct bolt pattern for the head then weld the other 3 & 4 sections on and join the middle sections together and block off the ends, sounds simple but would be a heap of work and would cost $$$ to get done properly.

Hard to tell mate, the track was fast and the racing aggressive/messy. When you look at my laps the street stocks are lapping faster than the production cars, there are 6 driver/car combinations here in Albany that are top 10 state competitors so we are still slightly behind them but not being left behind either, sometimes I get frustrated but then I have to remind myself that we are racing the best down here meet after meet so at least we know how we are really going.

Well had a meet at Albany speedway last night and what a meet it was, nothing special in regards to wombat, the car ran well and was on pace. Carnage between every street stock racer was the call for the evening haha drivers getting relegated positions everywhere and drivers ramming into each other after the races and then mouthing off at each other in the pits

Hey guys, now that another race car that I developed the engine for is up and racing I thought I would start a new thread for it to update it's progress.
This is another XF but in the production class which is the next step up from the street stock cars. Another carby crossflow but SO much more freedom in development, modified intake manifold, ported head, balanced assembly, aftermarket ignition, electric water pump, 350 holley (modified), roller rockers etc etc but must be pump fuel.
So most of the stuff I have shared with you before but I will go over it again, this engine runs a 86da block, EF crank, 200 rods with 13cc pistons, ported XD head with 1.86in intake valves, 1.6in exhaust valves, yella terra adjustable rollers, head flows 212cfm. Comp is 10.5/1 with 6al msd ignition off XE dizzy, electric water pump, 1 3/4in long tube header. I ported the head, modified the intake manifold and built/modified the carb. I also speced out the bottom end but it was put together by the owner
The cam is a solid flat tappet that the owner already had so all my calculations are based around that. Cam specs are: In lift 562, ex lift 571, duration at 50 in 251 ex 254, ICL 105 LSA 106.5
 
So here are some pics of the head, manifold and carb work.
 

 

 

 

 









 

Well had a meet at Albany speedway last night and what a meet it was, nothing special in regards to wombat, the car ran well and was on pace. Carnage between every street stock racer was the call for the evening haha drivers getting relegated positions everywhere and drivers ramming into each other after the races and then mouthing off at each other in the pits

Yeah mate and she has more to give, he wasn't even pushing it, Wolfy said he didn't give it more than 70% throttle as he is still getting used to it. When you listen to the vid the other drivers are flogging theirs and the old boy is hardly on it hahaha. The blue car in front and the White one that came third (Wolfy ran second in that race and right up the arse of the blue one) they both are BIG $$$ cars from Perth that came down to have a run because the state titles are at the Albany track this year and the XF ran with them no worries and faster down the straights than both of them, the XF actually posted the fastest lap time in that race, Wolfy just isn't stringing enough of them together yet to be dominant.
Anyway the night went like this, heat 1 the car didn't make it out as it snapped an axel in the pits lol so heat 2 is the vid above and ran 2nd, heat 3 he ran 3rd behind the 2 Perth cars, he got back in the pits and said it was loosing power in the corners, found the reason, his pit crew were too busy celebrating how the car went in the last heat they didn't put any fuel in it so the car was sucking air in the corners hahaha I try to make my engines efficient but they can't run on air alone

Now that's what I call round the outside. Bloody good job certainly does go

Well had a meet at Albany speedway last night and what a meet it was, nothing special in regards to wombat, the car ran well and was on pace. Carnage between every street stock racer was the call for the evening haha drivers getting relegated positions everywhere and drivers ramming into each other after the races and then mouthing off at each other in the pits

Well had a meet at Albany speedway last night and what a meet it was, nothing special in regards to wombat, the car ran well and was on pace. Carnage between every street stock racer was the call for the evening haha drivers getting relegated positions everywhere and drivers ramming into each other after the races and then mouthing off at each other in the pits

Not sure if they're different at all I've seen a couple of different heads on egas au's but they may have been changed

I agree 180 to 190 is ideal temp

I would be going for a 180F thermostat if it were me.  Then I would be doing a plug read and looking at the temperature range to get a good burn. 

Howlin 6 Stumper, hope she goes out and kicks arse.
 
Jack.

Awesome work as usual stumper!
 
 
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short vid of me firing it up today while checking the old girl over.
 

no a grand to convert to carby ,or if your a tight arse $3 to 400 bucks 

short vid of me firing it up today while checking the old girl over.
 

short vid of me firing it up today while checking the old girl over.
 

So anyway, the engine's out now. Will be getting re-built early in the new year then run in PROPERLY. Ill post some pics of the internals when it all gets under-way.

Sounds like plenty of vitamins in that one... Love it!

Hey guys, now that another race car that I developed the engine for is up and racing I thought I would start a new thread for it to update it's progress.
This is another XF but in the production class which is the next step up from the street stock cars. Another carby crossflow but SO much more freedom in development, modified intake manifold, ported head, balanced assembly, aftermarket ignition, electric water pump, 350 holley (modified), roller rockers etc etc but must be pump fuel.
So most of the stuff I have shared with you before but I will go over it again, this engine runs a 86da block, EF crank, 200 rods with 13cc pistons, ported XD head with 1.86in intake valves, 1.6in exhaust valves, yella terra adjustable rollers, head flows 212cfm. Comp is 10.5/1 with 6al msd ignition off XE dizzy, electric water pump, 1 3/4in long tube header. I ported the head, modified the intake manifold and built/modified the carb. I also speced out the bottom end but it was put together by the owner
The cam is a solid flat tappet that the owner already had so all my calculations are based around that. Cam specs are: In lift 562, ex lift 571, duration at 50 in 251 ex 254, ICL 105 LSA 106.5
 
So here are some pics of the head, manifold and carb work.
 

 

 

 

 









 

Love reading ya threads man, always something interesting. Hope everything is well for ya mate.
 
Jack.

On a better note the production XF went well for a first untuned run, it was the southern production series round so the states best came out to play, even tho the car ran middle to back of the pack it finished on the lead lap every race and it's lap times and top speed were competitive. Wolfy is the old boy driving it and he had a blast, he thinks it's fast and with more seat time should be right up there, he hasn't raced for a couple of seasons now so he will get better and he has never had a car this fast before either so looking good when I get some tuning time into it.

I did all this work over a year ago but the car raced for the first time on the weekend, Wolfy (the owner) was over the moon with it's performance and said it was bad ass fast, so much so he rekons he needs to grow some bigger balls to drive it properly hahaha. I was talking to him today about how it went as I wasn't there and he said the power was everywhere, as soon as you got on it she was flying, previous engines he's had the power was delayed or had to build up speed, this engine pulls out the corners like no other and he didn't find the end of the power curve as he ran out of track. He said that he has to get used to it and was sitting behind cars just getting a feel for it but if he had bigger balls he could easily passed cars if he commited in the corners, looking at lap times and top speeds on the my laps site the car was running competitive times and speeds for it's first time out and him not using the car to it's full potential.
I'm stoked with it and it shows that the port design and size is perfectly matched to the cam and intake as there is no delay in power from lower in the rev range all the way to redline, there is more development work for this combination to come that WILL make it faster again and I haven't even tuned it yet, the 3rd of Jan I will get a look at it on the track and start the fine tuning process and slowly get the tune spot on, the production titles are at our Albany track this year so hopefully some home advantage will have us eating some more injected cars this season.