Just thought I'd pass these along if anyone was curious as to how to run anything. Its pretty straight forward, it must be if I figured it out



Picture of throttle bracket that's pissy with the vortec manifold

Another throttle bracket

JPrevot's heater valve delete in action, great to open up engine compartment

 

Very nice, what about the temp sensor for the computer, seems like it would not be as accurate being on an elbow then on an adapter off the elbow, why did you not just plug it in the manifold, the wires were not long enough? I had to extend my wires off my csc for my computer when i went to the rpm.

 

I have the same manifold but airgap, and I just peeled the coolant sensors wires form the harness a little bit, and just screwed it in at the back of the manifold. That spot is not good, but if you don't change it at least angle it down to prevent an air lock.

 

hey ours look kinda the same except i have a carb, huh chuck? lol

 

id move that temp sensor and try to get as much of that crap out between it. It will definatly throw the sensor off some. On mine, the port was on the opposit side of the intake so i had to splice the wires to get enough lenth to get over to the other side .

 

Hey brody, how on earth do you get your tranny to shift with the tv cable disconnected?

 

My buddy's o2 sensor went nuts when he just extended it so I was scared that would happen with the temp sensor if I just made the wire longer. So far it hasnt thrown a code, so it'll have to do for a temp solution while I get everything else ironed out.

Id like to just get that hole drilled and tapped next to the tstat housing, mabye when it comes off next I will. Freakin holley gives you the manifold drilled out but Edelbrock cant do it for us.

 

They did drill it out at the back!

 

its been on now. really old pic. the tranny shifted fine, except for the fact that it wouldnt shift till 3000 rpms. and the shifts were hard at 3000 rpms and soft at 5200 rpms

 

hey guys just use a older style water neck like on the LG4 that has the coolant sensor/ port vacuum switch on it .

or will that hurt it sense the ECm needs to follow the rise in temp instead of all of a sudden when the t-stat opens and water flows

just a thought

 

Hey Chuck I noticed something. Your TPS hookup and sensor looks way different than mine. Maybe the 88 TBI was different? Is your TBI "ultimated" or is that an aftermarket TBI? the bore looks huge for some reason.

 

Yea those are my shoddily performed Ult. TBI mods. Thats another thing I need to work on, kinda index the bores inward. Theres still about .5 mm of metal sticking up before the primaries.

Either that or Ill save my pennies for a 454 ss tbi

 

or a holley, lol, just playing

 

What kind of timing and fuel pressure are you running with the edelbrock setup?:lala:

 

you are only runing a 15.500 what is up with that? i thought you would run faster then that.

 

Brody, if I can find anything with 2" bores for less than $175 Ill be happy as hell lol. Man people are getting an arm and a leg for those units!

Yea, the et was bad, but the trap speeds were OK. I dont think 92.81 is the high point of the setup either, because my mph went up from 89 to 91 to 92.81 on my three separate runs and I never got a good run in. There's a mid/low 14 in the car with traction and gears - but Im gonna worry about that next year lol. Gotta concentrate on useless things like Calc 3 haha kill me.

mylittleturtle: uhh ... the best I can say is that I dont know lol. I just went with the timing till it pinged then backed off. I didnt have time to time it before I went back to school. The fuel pressure on stock injectors is damn near the top of the pod, but I think Im running rich. I gotta get a gague. The whole setup is raw and sadly I sort of half assed the end of it just to get it done before I went back to school. Once I get a long break to iron everything out Ill be able to post more solid data.

I really really really want this setup to work because it was fairly cheap (heads, cam, and intake cost about $640 all together) and it would be easily replicated. The tbi registry thing we got goin on is a great idea because it gives people a way to see what setup is producing what and that is what is gonna keep the tbi community together. All the tpi guys have tried and true setups that anyone can bolt on to their cars and see 12s... well I want to be able to say that for the tbi community too.

 

hey guys

i have been thinking about doing a cross-ever between a TBI and a TPI. I would like to use a TBI for the throttle blades and sensors and do away with the injectors. then have the intake machined to put 8 injectors in it for multiport injection then all you would need is a speed density TPI ecm to control the injectors. i think the TBI could flow more air than the TPI intake can. it would also make for easier tuning and have the power of a TPI with out the hassle of working on a TPI car. i got the idea after looking at my buddies 99 dodge ram 5.9L

 

correct me if im wrong but, dont people use TPIs 48mm thorttle blades instead of TBIs 1 11/16" blades???

 

Actually SC2's idea has already been done, just look in jegs or summits catalogs under MPFI kits, though they have 4 barrel TB's With 8 injectors, like the TPI's

 

emphasis on 4 barrels

 

The early (pre-90, I think) TBIs have the three in a row TPS connector, as do the Holley TBIs. The later TPS connectors are like the one pictured. The wires are the same so you all you have to do is swap connectors if you're trying to swap a flat connector TBI into a later car or vice versa.

 

I've been wanting to move my heater valve by cutting the hoses and sticking it towards the back of the engine, but it looks like you pretty much just did away with the thing. Is the heater valve not necessary? What are the details on getting rid of it?