How would a 13B Cosmo RE motor do in N/A form?
#11
Originally Posted by guitarjunkie28' post='774586' date='Nov 1 2005, 05:06 PM
the ports are about the same as the fd...it's the runners that are large.
wtf? did u edit your post? i swear this is not what i read?
i was talking about the runners btw, not ports
we are on the same page, sorry if i misunderstood
#13
Originally Posted by kahren' post='774980' date='Nov 2 2005, 07:06 PM
wtf? did u edit your post? i swear this is not what i read?
i was talking about the runners btw, not ports
we are on the same page, sorry if i misunderstood
na... non-edited. LOL
we all good though.
but now that i think about it, i remember the primary ports (port oriface) actually being smaller... i'll double check it as soon as i can tear that motor down. might as well do the comparison pics and post up just so people can have the reference anyway.
#14
Originally Posted by guitarjunkie28' post='775026' date='Nov 3 2005, 12:20 AM
na... non-edited. LOL
we all good though.
but now that i think about it, i remember the primary ports (port oriface) actually being smaller... i'll double check it as soon as i can tear that motor down. might as well do the comparison pics and post up just so people can have the reference anyway.
i forgot to take a pic of the overlay a stock fd port over the 13b-re one to show the exact diffrence of the port timing and shape.
like this
#16
Originally Posted by kahren' post='775028' date='Nov 2 2005, 09:28 PM
i forgot to take a pic of the overlay a stock fd port over the 13b-re one to show the exact diffrence of the port timing and shape.
like this
i'll try to do that.
#17
Originally Posted by Judge Ito' post='775302' date='Nov 3 2005, 08:49 PM
I really like the N/A set up I have. music to my ears..
#18
alrighty..
i didn't get the exact right angle on the pics, but it should be enough to give everyone who hasn't seen an idea of the differences and similarities between the cosmo and rew motors.
secondaries appear to be almost identical.
primaries are not only shaped differently, but the cosmo primaries open later for less overlap--good for low end.[attachment=34690:attachment][attachment=34691:attachment]
the cosmo is getting ported today, so if anyone wants any other pics, you've an hour or so to request them...
i didn't get the exact right angle on the pics, but it should be enough to give everyone who hasn't seen an idea of the differences and similarities between the cosmo and rew motors.
secondaries appear to be almost identical.
primaries are not only shaped differently, but the cosmo primaries open later for less overlap--good for low end.[attachment=34690:attachment][attachment=34691:attachment]
the cosmo is getting ported today, so if anyone wants any other pics, you've an hour or so to request them...
#19
wow. this is almost scary. i haven't been on this forum in ages and i had this same idea last week. i'm really curious as to how many people run this setup (RE side housings with Renesis rotors) or something similar in a normally aspirated form.
i really don't think low end losses should be THAT bad. midrange and top end should be phenomenal though.
i really don't think low end losses should be THAT bad. midrange and top end should be phenomenal though.
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Rotary Engine Building, Porting & Swaps
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