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edelbrock "power packages"/TBI engine build for my Sub.

muddysub

muddysub

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anyone using one or know someone using one? i'm talking about the heads/cam/lifters/manifold sets you can buy. i'm gonna start ordering parts this week and i was wondering if the whole package is worth bothering. it's a lot of money so i want to be sure it'll pass smog and be reliably to cruise down the highway before spending that kinda cash.

then there's my other idea. just a basically stock rebuild, with a nice roller cam, roller rockers and a performed TBI intake manifold. i don't want to screw around with aftermarket chips, custom flashing or any of that. i just want simple and reliable. (that is unless someone can provide a cam, rockers, manifold and a chip that is guaranteed to work right the first time.) ive built GM small blocks in the past but never anything that had to pass smog and run a TBI system. so im kinda new to this, i dont know how much cam/rocker ratio/etc i can run with a stock TBI, so any help is greatly appreciated.
 
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i read up on tbichips.com first not saying he is the best but done a lot of chips. he says you can score a cheep factory lt1 350 roller cam from guys and bolt it in the newer blocks and run a gm roller chain. then just do some roller tip comp self align rockers and mabye a tbi or 4 barrel intake with adaptor. but he says the biggest thing is the whole exaust. and second is the cam on a tbi .

he is cool to chat with in the past. send him a email on your needs and stuff to see what he can do for a chip to fit the mods you want.
 
I'm thinking Edelbrock discontinued the MPFI convesion system for the 87 - 95 TBI's?

I like the idea of upgrading a stock engine with a roller cam, roller rockers, and aftermarket TBI intake. I built my 93 GMC K1500 5.7 liter with a roller valve train, but I modifified the factory TBI to use a 670 CFM throttle body.

I'm not a big fan of TBI Chips, mostly because I think the best chip is custom tuned to the vehicle using data logs. I'm not saying negative things about TBI Chips! I'm saying a custom chip will ultimately provide more performance.

dave w
 
sweetk30 said:
i read up on tbichips.com first not saying he is the best but done a lot of chips. he says you can score a cheep factory lt1 350 roller cam from guys and bolt it in the newer blocks and run a gm roller chain. then just do some roller tip comp self align rockers and mabye a tbi or 4 barrel intake with adaptor. but he says the biggest thing is the whole exaust. and second is the cam on a tbi .

he is cool to chat with in the past. send him a email on your needs and stuff to see what he can do for a chip to fit the mods you want.
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i'll send him an email, couldnt hurt right? thanks!

dave w said:
I'm thinking Edelbrock discontinued the MPFI convesion system for the 87 - 95 TBI's?

I like the idea of upgrading a stock engine with a roller cam, roller rockers, and aftermarket TBI intake. I built my 93 GMC K1500 5.7 liter with a roller valve train, but I modifified the factory TBI to use a 670 CFM throttle body.

I'm not a big fan of TBI Chips, mostly because I think the best chip is custom tuned to the vehicle using data logs. I'm not saying negative things about TBI Chips! I'm saying a custom chip will ultimately provide more performance.

dave w
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thats kinda what i'm wanting to do, just a roller drivetrain, small cam and maybe a bigger tbi. i'm more concerned with reliability than power. if i end up with 250-300hp i'd be thrilled beyond belief. but i'd really rather not get wrapped up in the tbi chip flashing thing. i just wanna put it together and drive it.
 
It's my personal experience that when there is any kind of engine modification with parts that not OEM the chip flashing thing is needed to get the engine to run decent. So I figure if the chip flashing thing needs to done with non OEM engine parts, just bite the bullet and flash a performance PROM Chip.

dave w
 
dave w said:
It's my personal experience that when there is any kind of engine modification with parts that not OEM the chip flashing thing is needed to get the engine to run decent. So I figure if the chip flashing thing needs to done with non OEM engine parts, just bite the bullet and flash a performance PROM Chip.

dave w
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Yes I agree with this statement. In simple terms the TBI has such small parameters any changes out of stock need either a custom chip or a custom tune.

I put a vortec bottom end in a 89 k1500 with the vortec cam and have had issues with running rich, and backfire on decceleration, just very slightly.
 
63chevyll said:
Yes I agree with this statement. In simple terms the TBI has such small parameters any changes out of stock need either a custom chip or a custom tune.

I put a vortec bottom end in a 89 k1500 with the vortec cam and have had issues with running rich, and backfire on decceleration, just very slightly.
Click to expand...

Backfire is corrected in the deceleration fuel cutoff (DFCO).

Running rich is corrected in fuel table, which need either \ or both injector flow setting changed and data logs to know which fuel table cells are wrong.

dave w
 
god damn i hate gasoline engines, such weak, fragile junk. i wish 12V cummins were cheaper, i'd throw this small block in the damn lake.

ok then i guess ill buy the parts i want and worry about a chip to make it all work later on when i'm actually ready to drive it then.

where do i get the software to do this myself?
 
Build a 6.2/6.5 cheper then a cummins swap and better mileage then any gas motor you could build
 
dave w said:
Backfire is corrected in the deceleration fuel cutoff (DFCO).

Running rich is corrected in fuel table, which need either \ or both injector flow setting changed and data logs to know which fuel table cells are wrong.

dave w
Click to expand...

Hence, just a little change requires further diagnosis mostly required by more experienced techs.
 
yellowK20 said:
Build a 6.2/6.5 cheper then a cummins swap and better mileage then any gas motor you could build
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I've been giving this a looootttttttt of thought of late...
 
Hmm wonder what the DMVs requirements for gas/diesel swaps are.
 
Obviously I can't say for your area but up here they just do a visual inspection to confirm that it is diesel and give you an exempt sticker and send you on your way
 
muddysub said:
good question. a fully mechanical engine would obviously be best for a swap.
Click to expand...

Maybe the Nissan diesel used in the International Scout is an option? The Nissan diesel used in the Scout is also used in many industrial applications, including forklifts.

dave w
 
dave w said:
So what year did the 6.2 - 6.5 diesel start using a computer?

dave w
Click to expand...

1995 all previous engines were 100% mechanical injection .

The newer engines can be converted by replacing the Injection pump IIRC
 
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