Thnx, she's extremely fun to drive on the street. I do love the long trq curve cause it makes me want to keep it floored
Really would like to get a fiberglass hatch, that mofo weighs a boat load.
its makes roll pulls at 40mph in 2nd gear 4000rpm work real good!btw good numbers real nice torque she must pull good!
Thnx, she's extremely fun to drive on the street. I do love the long trq curve cause it makes me want to keep it flooredhaving the lighter hood helps to offset the iron heads and ac weight.
Really would like to get a fiberglass hatch, that mofo weighs a boat load.
i dont get to see my torque curve much usually when its time for business i only see 4000rpms and up unless something bad happen or i missed a gear
You have a freakin' cannon, yours is more of the amusement park ride at six flags, people must get scared as crap getting into that beast
Sounded great!! What rear end gear you have?? ...oh and you're stock tach seems to be very accurate with your aftermarket one from what i can tell.
The TFS would still fit with the rotated design of the valve and you could still get pretty crazy with the cam profile
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That's good to know. I'd like to stay with the same theme when I do decide to upgrade. Would you consider the Trick Flow 205's suitable for a car that spends most of its time on the street, or are the 185's better suited to my combo? I figure with the extra cubes, it'll handle a little more volume than the standard 170's, but I don't want to make it lazy or temperamental down low either? I'm also running a 1 5/8" long tube, which will probably limit flow potential anyway? As far as the cam goes, I can't imagine getting much crazier than the XE274HR's .555/.565 lift figures. It's got a pretty choppy idle as it is and It feels like it would pull all the way to 6,500RPM if I had the ignition for it. It doesn't seem to cost me much in the lower regions either. Really, really snappy down as a matter of fact. I imagine a lot of it could be due to the conservative dimensions of the GT40X heads though?
your 1 5/8 long tubes would probably hold back 205's a little 185's make great power, my cam lifts are .550/.570 the XE274HR is similiar im very happy with mine. Brian if your not gonna run forced induction go close to 11.1 comp lots of power made thru compression
I figure I'm running a shade over a 10:1 CR right now. I've got the -4.0cc flat tops with the GT40X's milled down to about a 60-61cc combustion chamber. My next heads will probably be the 58cc versions, which according to CHP will get me around the 10.3-10.4 range. I guess that's just a ballpark though, considering the XE274HR has a fair bit of overlap compared to most?
...and like yourself, I've got a purple bottle sitting in my living room right now waiting for the install. I'll probably spray it in the 75-100hp range, but I'm told this kit will handle as much as 150. We'll see. I'd kinda like to get some break in time on the engine first. Don't even have 1,000km on it yet.
I'd still like the option to used 87-octane every once and a while (yeah...cheap skate.). I'm running my base timing at about 11-degree's right now and I'm just on the edge with the 91-octane. I'm actually thinking of pulling just a little more timing out of it, just to smooth things out a little. The car's a little bit jerky down low....like the timing is too far advanced. Might just be the nature of the camshaft though? I've still got to play around with a little more. Once I get all of the bugs worked out, I'll take her to the dyno for some fine tuning and see what kind of numbers it puts down.
the 205s will be fine for a 331, just cam it accordingly.
That being said, I guess GM's LSX engines run pretty well with big volume heads and relatively dedate cam profiles on small displacement engines. Guess I've still got plenty of time to ponder.
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