|
Since this thread looks to be in imminent danger of dying I'll step in and stir it up a bit.
The SBC crowd have been coming up with an incredible amount of cr*p about the so called superiority over the Porsche f6. Stuff like an sbc conversion will whip a 930 is just total fantasy when you compare like with like. The best pre-LS1 vette engine has 305 bhp and a 930 with just headers and a boost controller has an easy 350bhp+. Even the fancy pants Z06 vette has a measly 385bhp from it's 5.7 litre pushrod POS and the best that the tuners can get for it is about 445 bhp with the Lingenfelter 383ci conversion which costs 15k installed. For 15k, a 930 motor is already pushing near 500bhp.
What about the ultimate vette motor- the ZR1 LT-5 with the Lotus designed quad cam 32valve heads. The full house 640bhp 510tq Lingenfelter conversion costs 38k. For that amount, a 930 motor will have 900bhp+. What's even worse is that A BRITISH COMPANY DESIGNED THE BEST AMERICAN ENGINE. BWAHAHAHAHAHAHAHAHAHAHAHAHAHAHAH!!!!!!!!
As for statements like "my sbc can rev to 6k rpm", well there is a difference in an engine able to do it and an engine that relishes it. A pushrod engine with a 5 bearing crank and nearly 6 litres will NEVER be a free revving engine and you need revs to make power. Simply put, power is revs x torque so having 300lb/ft at 2200 rpm is no use if it's choking at 5200rpm.
The 911 is the finest sports car ever made because of its engine. Sports cars have free revving engines and the thrill with sports cars is that the engine gets stronger and sweeter the higher up the rev range it goes. Pushrod v8's were never designed to be used in sports cars and definatly not in Porsches. For you Porschev symphatisers, I can see the reason for the swap but do not pretend as some of you have that the bonus lies in any other place than cheaper parts and easier servicing for your mild sbc. For these two reasons, you have sacrificed the soul of the car which is the very reason why the 911 is held in such high esteem in the first place.
Let's look back at the neat butcherwork done to ks 911's car. He paid 6k for the motor to be installed. The money he saves in maintenance will not have been worth it when you consider he could've sold his 2.7 engine and use the cash towards a 3.6 which has modern engine management and also enhances the value of his car. Now he has an asthmatic pushrod engine which has no resale with cheap parts costs which will be good because it's going to break a lot. Dry sump does make a difference if you do track events and you will find sbc engines on track suffer fading oil pressures.
I can't wait for the next 200 posts.
|