Quote:
Originally Posted by countryboy
well as a true turbo guy (aka;nut), i have learned a thing or two about them.
First the main difference between a bbc and a sbc is displacement. which is everything with a turbo motor on the street. A bigger cid motor will replace the lost torque that is caused by turbo lag. Lag is the tendency to be doggy at rpms where you have little or no boost. now that doesn't mean you shouldn't run a small block, it means you should consider the cubes first. a larger engine (cid) will be easier to drive on the street and will be quicker off the line when not building boost first. Turbos can be very fun on the street and build power that hard to beat. Its possible to build very large small blocks these days. but building them isn't all that cheap when compared to a bbc of the same size.
Just some things to think on, hope this helps.
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Quote:
Originally Posted by deuce_454
im with countryboy on this... since its a streetcar id consider the offboost performance, (even nelson builds large smallblocks, 427 and 454 cui) where a v6 could deliver the same power at higher boost and rpm.. a larger dispacement engine is just much more driveable and pleasant on the street...
id go with the big block, especially if you have one allready.. and never mind the people going "you cant hook this or that" if you build a big block thats capable of 1500 hp, there is no law that states you cant leave the line at a reasonable rpm.. or limit boost in first gear...
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That is what I thought too, my plan was actually to go with around 9-9,5:1 and set the wastegate at low 6-9PSI only.
That way I have a efficient stop and go traffic behavior and a good off boost performance.
Aside of that I have been told that it is a fairytail that flow isnīt important for turbocharged engines, if so the BBC with my Dart 320 heads will flow much better than any SBC.
I further plan to run CNG (Natural Compressed Gas), it is enviroment friendly and got higher octane numbers.
Thanks so far for the comments
As for the hook, I really plan to do anything like well adjusted 4-link, everything heavy in the trunk like sound-system, battery, and even the radiator will come in the rear, under the trunk to transfer the weight.
As soon as I have money, I change to an alu block, I will first then buy the turbo setup.