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Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Fri Aug 14, 2020 12:03 pm
by MegaRookie
I dont know, but I would say that the rings would maybe help a bit with heat transfer?
Ps. Maybe a bit off (this) topic, but any updates on the typ4?
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Fri Aug 14, 2020 1:30 pm
by Wally
Nah, the spacer rings dont touch the liners if everything is machined ok.
No updates on the type4. New guides are in and seats get cut next week. That will start after the 1200 Challenge.
In fact, this 1200 Challenge gives more fun atm because of the rivalry with the other competitors
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Mon Aug 17, 2020 11:45 am
by Wally
Small step further: installed pistons, now waiting for some super duper CNC machined stock size intake valves
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Wed Aug 19, 2020 11:15 am
by Wally
And they came in today!
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Wed Aug 19, 2020 12:47 pm
by buguy
Thin! Should flow pretty good huh?!
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Wed Aug 19, 2020 1:21 pm
by Wally
Thats the idea
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Fri Aug 21, 2020 1:22 am
by Kalle
buguy wrote: ↑Wed Aug 19, 2020 12:47 pm
Thin! Should flow pretty good huh?!
They improve flow where it matter most.
Check out the valves on the mighty impressive Cosworth CA engine. This was a low budget engine compared to its competitors but at the same time it had the longest service intervals (350-500 kilometers) and it was also the only one coping with 20000 rpms over a longer period. 305 to 315 hp per litre. It is considered one of the all time best F1 engines.
-K-
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Fri Aug 21, 2020 1:49 am
by split1950
Kalle wrote: ↑Fri Aug 21, 2020 1:22 am
buguy wrote: ↑Wed Aug 19, 2020 12:47 pm
Thin! Should flow pretty good huh?!
They improve flow where it matter most.
Check out the valves on the mighty impressive Cosworth CA engine. This was a low budget engine compared to its competitors but at the same time it had the longest service intervals (350-500 kilometers) and it was also the only one coping with 20000 rpms over a longer period. 305 to 315 hp per litre. It is considered one of the all time best F1 engines.
-K-
That is awesome, even just to look at it
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Fri Aug 21, 2020 2:30 am
by buguy
Interesting! Looks like more of an I-beam rod than an H-beam too. And no oil control ring on the piston?
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Fri Aug 21, 2020 3:52 am
by madmike
I see the oil rings and a single comp ring,
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Fri Aug 21, 2020 4:29 am
by buguy
Ahhh. Good eye. I guess my eyes aren't what they used to be!
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Sat Aug 22, 2020 12:12 am
by Kalle
buguy wrote: ↑Fri Aug 21, 2020 2:30 am
Interesting! Looks like more of an I-beam rod than an H-beam too. And no oil control ring on the piston?
The rods on the CA engine are rather massive;
And here is a short video of it in action:
http://youtu.be/BPdm51QwZEw
-K-
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Sat Aug 22, 2020 12:45 am
by andy198712
thats not exactly a "rod" its almost wider then it is long!!
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Sat Aug 22, 2020 2:23 pm
by Wally
Two weeks and counting...
Re: 200hp 1200DP Turbo 'Challenger motor'
Posted: Sun Aug 23, 2020 12:30 am
by Kalle
Looking good but please get rid of that pulley tensionerer. You want the belt to slip.
-K-
