View Full Version : Exhaust port match to adaptor plate
Magcat 62
07-10-2016, 11:42 AM
MY 2.5 Ports are almost square shape but my 1pc plate ports are huge rectangular shaped looking down i see they match the tuner which about 10'' long. i was told its an old school cut ridgeback to 15'' such a big difference in port match makes me think twice about bolt up pwr hd? think that big short tuner is for super high rpm mod 260-280? im thinking of necking it down closer to powerhead size, adaptor ports are about 1/2'' longer than powerhead ports gasket is a little edgy it matches alien pan perfectly,i idont know what to do a this point need help ART
texasvector
07-10-2016, 11:59 AM
You'll be fine....we run stock 200's on 280/260 plates and tuners with no issues....if it was backwards I'd say open the plate up to match block ....
Make sure cooling system is correct for steel sleeve on 1 piece plate or u ain't gonna build any heat
Magcat 62
07-10-2016, 12:09 PM
I GUTTEDthe poppit for a dump hose outside washers for t stats its a 2,4 plate with the 4 small holes mid has cut-off snout its always hot here so if mota still cold run poppit hose back into top of block? i hoping this set=up will give me bragging rights for fastest 1960 mag-cat in country, now im at 75 with my 210lb passanger, boats only 15 6'' ive heard of 1 doin low 70s with me alone now might do 80 just gotta get the nads to do it! some great pics lady put up my album dont do up down loads call me a dinosaur
texasvector
07-10-2016, 02:25 PM
the 4 small hole plate is easier to work with for steel sleeve......gutted poppet dumping out might cause no psi and cold temps and yes if too cold run back to top. anywhere from 3/16" hole to 1/8" hole washers....theres 2 small drain holes that need to be moved on bottom side of block(ive seen people get away with not doin this.)
it just takes testing and tuning to get temps right
use tinypic.com to post pics
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