dr_frankenstein
Mad Scientist
- Joined
- Mar 17, 2008
- Messages
- 5,126
...words to live by!
I hear ya, that sounds really nice! So there's no need I'd have to dig into the short block if it's mechanically sound? This is starting to look more promising than I thought!
For the SFI setup, I'd need some kind of crank trigger wheel tho right?
Otherwise, would you say it's easy to convert the harness or am I better of building a new one while I'm at it?
I get what you're saying on the 4bbl TBI and running it with a 4bbl intake, sounds good. Which cfm rating did you get, for what goals?
Also how do you guys handle the rearend? If I'm not mistaken we got the 7.5" 10bolt like the F-bodies and coming from that world I know they rarely hold up to a lot of power.
Thanks!!
Correct, if this motor if fairly sound - let it be. It already has the correct pistons, gaskets and heads. I know there not the best but the basic engine didnt change for the turbo years and many people have gone fast with stock shortblocks. Now one thing i need to tell you now, It Wont Last Forever. Its still a stock shortblock with who knows how many miles. the harder you beat her the shorter that already 30 year old life will be. Just want you to be clear about the buick power thing.
You wont need a crank trigger, as the HEI distributor will do that for you. Your going to end up gutting it out and using the pickup coil.
Harness, It would be best to either build your own, take one out of a 88-95 chevy truck/caprice/impala or buy a universal harness from speedway motors for 350 american bucks. I would pull out any of the old engine wiring and set it aside. it really offers nuthing for this effort. On the upside, it will really clean up the engine bay with all that extra stuff out.
Throttle Body. Thats really a double edged question when it come to using the EBL Flash. The EBL is really really good about compensating for any size cfm unit you put on there so its really up to you. I bought the 1200cfm FAST unit for my blowthru motor... it idles like a dream, no problems at all. The problem with the higher end units is the friggin cost! I paid 900 bucks american for that FAST. There is a company in your fine country that produces a TBI unit in the 500 your dollar range, let me dig into that info for you i need to remember who the company was.
Now, you can also use a factory GM TBI unit... but your limited to about 10lbs of boost. the injectors just cant handle much more pressure and will lock up. I have some ideas and concepts about adapting a couple of other makes and brands style TBI units to 4bbl intakes, but i havent really pursued the results.
Agh yes... the 7.5 rear axle. You can begin by fully welding the tubes to the housing. that helps. pullling the ring and pinion from an S10 a 7.8 and pick up just a bit of strength. Of course avoiding anykind of wheel hop will help it last. And avoid the trans brake and sticky slicks too. But i have seen S10s go into deep 9s with a 7.5 and a small block... I think weight it very critical to life on these. a fat G body doesnt help.
How ya feeling about it so far?