My brother has a XY GT replica
He is about to spend a shitload of dosh on his engine/trans/diff combo
i would like ppls opinion on the "streetability" of it all
THE CAR WILL NOT BE DRIVEN DAILY
and so far here how it is
373ci Clevo Stroker
ported 2v heads, funnleweb3 manifold, Holley Hp Pro Series 750 mech secondary, Yella terra Roller rockers, CrowCam (4000-7000rpm), Pacemaker headers, Twin 3" exhaust (1 muffler))
Sounds like a good combo to me!
If your not drivn it interstate or on long trips the converter wont be a drama. Just be sure to have a HUGE trans cooler so the trans doesnt cook its self after 5km's! A huge fuel tank will be handy too. Be sure to post the 1/4 times!
the ppl building the engine say guaranteed 11s with a good launch
he rung a reputable tranny place and they said the he might have to back off the stallie to 3000rpm and make the extra power elsewhere (head work or cubes) because of the lower diff ratio
the dude at the tranny place said that you find the cars with big big stallies have like 4.56 and such diff gears.
Cars with 4.56 gears have a very tall slick around 29 inch diameter. If you run a smaller diameter slick say a 26 inch with 3.89's youl be fine. With the 26" slick 3.89 gears at 120mph youd be pulling around 6400rpm over the line. Thats mph for a flat 11 sec pass. If the motor has plenty of torque it will pull it off the line no worries. Anyway, if the cam isnt making pwr till 4000 leaving at 3000 will be no good no matter what diff gears youve got!
My coupe runs a 3.88 spooled 9" and a 3000 hi stall, and drivability is fairly good (except the minispool, gets a bit annoying around corners and parking)
3000 rpm is approx 100km/h, but even driving at 60-70km/h isnt all that bad and things dont really get too hot. It got the biggest crane hydraulic cam in it, the previous owner had it dynoed in 2002 and got 300rwhp but there is no torque curve on the chart.
Using a stroker should move a 351 cam's powerband earlier in the rev range... so your cam will be somewhere around 3500 - 6500+RPM.
But, the question you asked with 'streetabilty'... very poor when compared to an unmodified car. It should be fine for a sunday power cruise but I wouldn't want to be driving through peak hour traffic.
hi mate i am running a 5000 stall with 4.3 gears. only driven on weekends and i love it. your combo sounds good. just depends on what you want out of it.
Sounds like a good combo, i would leave the stall, dont lower it.
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