305 from hell was Re: MAP+fuel maps
Andris Skulte
askulte at emerald.tufts.edu
Thu Dec 18 21:38:01 GMT 1997
Squash wrote:
> If you have never lifted a valve cover, than how do you know its HP and
> torque? A rear-wheel dyno?
Yes... Dynojet 248C. The rear wheel numbers are 274.2hp and 398.6
ft-lbs. I used the usual 15% driveline loss to get the big numbers in my
sig :)
> I can't think of any modified 305 that i
> have ever even read about that has 475 ft/lbs. Do you have traction
> problems at the strip? I am very curious.
Why, yes, I do :) I launch around 2700 rpms, ease it out, the roll the
gas on. It starts spinning again at 4000 rpms, and spins into second. I
might try some drag radials next season, but I'm afraid of leaving my
rear end on the strip :p
>>torque is daaang aggressive..that is why i have a 454 in my truck. How
many miles does that engine have?
90,000 original miles :)
>> I really think that you might be
robbing peter to pay paul by selling the headers. Turbos like headers.
Problem is the turbos need a custom header setup, since the turbos are
mounted near the alt+AC compressor... I'll attempt to make my own
headers out of weldels (ala Callaway twin turbo...) since I can't afford
a shop to make me a custom set for $800... Never too late to learn a new
skill :)
>>Do you already have forged pistons? If so, then go for it. I had just
assumed that you were doing a rebuild.
Nope. Stock bottom end :p I'm limiting boost to 8 lbs since I doubt the
stock block can take more than 450. Who wants to take bets on how long
the engine will last?
Andris - torque is good, more is better :)
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