hey guys, im looking for which will best fit my combo.turboed 496.. 1,000cfm
1.throtle body
2. multiport
3. TPI
4. EFI

which would work well in response to the motor and which is easiest to tune?, id like the look of the multi port... but damn they are exspenive... how well do the throtle bodies work? and what about buying a kit that doesnt include the manifold? could i save a few bucks on buying my own manifold then installing the kit onto it? thanks?

ok im looking at a holley omander 950 tbi kit. it has a 900 cfm flow rate. could i put in bigger jets to got it up too 1,000 cfm? also would i need to install fuel rails? im new to fuel injection....thanks

900CFM is a lot. that refers to air flow, not something associated with jets. jets meter fuel in carburetors, injection doesn't have jets, it has injectors. the rails will be installed on the manifold. look at the pics

To clear some terms up here, all of those are number 4, electronic fuel injection. TPI (tuned port injection) is a multiport system.

Fuel rails are only needed on a multiport system.

As for what one is the best, for boosted applications you would want the system that has the most capable ECM. The TBI or Projection applications are usually set up for ease of installation and tuning, therefore limited capabilities. Im not saying you couldnt use one of those, but a MPFI system with a wideband option would probably suit you better.

I would go the the bookstore or look on ebay for a book about aftermarket EFI systems.

I would look into MegaSquirt. Especially if you are looking for a learning experience/project. It is cheap and VERY capable, if you have the time.
http://www.msefi.com

man all taht megasquirt stuff looks intimidating!! so many little pieces.... confusing...hahahah but it does look cheap.

Rob,

You have me confused, what part of "496" and "turbo" goes along with "cheap"? ;)

Most of the throttle bodies on EFI units flow around 1000 CFM under NA conditions. Put some boost to them and that number can increase.

As soon as you put a turbo into the mix you have increased the commitment level significantly. Things get a lot more serious and more expensive when you want to go that fast. And require a lot more knowledge. I recommend getting some reading material and or doing some surfing to learn more about how the EFI stuff works. This is about the only part of this that is cheap: buying books and reading. Beyond that can get expensive, especially if you either wind up with the wrong stuff or worse smoke an engine from mistuning.

yeah i know things arent cheap its just im tryign to learn all these new things to understand turbochargiong and the fuel system and it kinda gets overwhelming at times. im going tp look up some mpfi stuff to learn more and better understand. but thank you guys for the help.:thumbsup:

Go to the Holley website. Do a search on 199R10149-7. Find this. It is the tuning manual for the Holley system. It also explains a lot about EFI components. Read it thoroughly.

Thanks Doug. just the ticket.

Go to the Holley website. Do a search on 199R10149-7. Find this. It is the tuning manual for the Holley system. It also explains a lot about EFI components. Read it thoroughly.
Last time we went through this, very recently, this was tough to get (perhaps impossible) to get on a Holley search. But this URL from a google search gets it done:

http://www.holley.com/data/Products/Technical/199R10149-7.pdf

:beers:

haha you huys i just dumped 35 bucks and purchased MAXIMUM BOOST. started reading tonight. time to cram some turbo knowledge into my skull!

For a top end system i Prefer AEM.

Midrange price concerned users always like Microtech. I used the Lt4 and LT10 with bot dist or separate coils. With dash controller you dont need a laptop for fine tuning. Really cheap. And very good.

Cheap system. Megasquirt. Or Vems. Vems is a much better system.

Rob,

You have me confused, what part of "496" and "turbo" goes along with "cheap"? ;)

Exactly.... Why a turbo Efi BBC? Just build a big 540 and be done with it.

You are looking at a min of 15-20k for what you want to do, especially if you don't know much about EFI/turbo's. I would suggest spending 8-10k on a 540 and throw a blast of 200 NOS on it. ;)

Exactly.... Why a turbo Efi BBC? Just build a big 540 and be done with it.

You are looking at a min of 15-20k for what you want to do, especially if you don't know much about EFI/turbo's. I would suggest spending 8-10k on a 540 and throw a blast of 200 NOS on it. ;)

Why does anybody want a 540? its a starter motor ,)

A turbo motor will kick these little 540:is around like theyre were toys.

Blown cui will always be better ,)

Why does anybody want a 540? its a starter motor ,)

A turbo motor will kick these little 540:is around like theyre were toys.

Blown cui will always be better ,)

My "starter motor" will have two hair dryers on it next year :D My goal is to be able to pull a Hyabusa or ZX-1400 from any speed on the freeway (within the aerodynamic limits of the car, of course) :thumbsup:

good god if you could pull a busa thats super fast! yeah i just have to have a blown bbc! i mean i hear they are a blast, exspensive yes but i hear once you go blown you dont go back.

good god if you could pull a busa thats super fast! yeah i just have to have a blown bbc! i mean i hear they are a blast, exspensive yes but i hear once you go blown you dont go back.

I didn't say I would, rather that is the goal :) The busa's are fast, and the new ZX-14 Ninja is even faster. I've seen 1/4 times in the 9.20-9.30 range with a lightweight/experienced rider :eek:

good god! thats crazy fast. nothing could touch on the street . id have that ***** eating grin! time to read max boost.

I will kill a 550hp Turbo busa in every speed with my car. from standing start, rolling satrt, and top speed. in every range.

Done that... ;)

holy crap! how much horse power do you need to do that?!!!!

Alot. But it needs no more than small bigblock and light boost.

On the standing 1000m the busa did 200km/h average speed. i only made 213km/h.

But that will be much faster for me this year. Hoping for 240km/h+ speed.

The best advantage on a turbo motor vs a large Cui motor is streetability and durability.

A 1200hp turbo motor willlast forever. A 540 with 400 shot will not perform that well. and will not last long. And will not run on pump gas.

A turbo engine is much milder on parts. For example there is eagle cranks in the 6 second. cast ford cranks. Scat cranks over 2000hp.

Adding up costs for better parts, more expensive fuel, nitrous and rebuilds.

2 years later you have paid more, gone slower and got less chicks. ;I)

My "starter motor" will have two hair dryers on it next year :D My goal is to be able to pull a Hyabusa or ZX-1400 from any speed on the freeway (within the aerodynamic limits of the car, of course) :thumbsup:


Ahh-Haaa,,,,,gotch-ya, I knew you were up to no good :D That'll be seriously bad ass Kenny, can't wait to see it finished.

Rob

lotta stuf in maximum boost .great book im learning alot and better understanding. dang thats alot alot of power and i know those parts are pretty good, but i had no idea they could take that much power!