CAN I.....

Started by BigCountryDRC, March 04, 2012, 06:21:31 PM

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BigCountryDRC

So i've got a '89 Ramcharger with TBI. I have a set of large intake (2.02's I believe) J heads. When I called summit to find out the biggest cam I can run with my TBI (.520) I asked them about my intake options. Theres none. So whats the point of putting these heads on if all my air is bottle necked at my stock intake? So my question to you WGM.COM is why cant I run a edlebrock dual plane intake? I'm going to assume the bolt holes for a carb wont line up with my TBI. Easy fix ill weld studs on the intake to line up with my throttle body. Then im sure theres gonna be more sensors on my TBI system than there is with a carb. So I weld in all the hook ups for my sensors. With that being said when fuel shoots out of my TBI will it still mix like it should? My question is if I make the throttle body bolt up and all the sensors are in place will it work?

J.C.

You could just run a ginormous cam, throw a carb on it and make power!

4x4xdodgeman

are you running a/c on these. i ran into that you cann't run older intakes on newer ac pump. no bolt hole for the brackets.  at that time only intake was perfomer, that had the bolt holes that are need. one other thing is dose 2.02 vavle heads clear the cylinder wall? (bore to small) you may want to check that frist. i don't play with small block, all my stuff is big blocks.

BigCountryDRC

Yeah it has a/c. It doesnt work, but i'd like to charge it and keep it for those hot days trailriding. The 2.02 heads are stock chrysler heads from 1970. Im putting rv cam in it I just like how reliable the TBI is. If I throw a carb on it All my problems would be solved. All chrylser sb should be the same bolt hole wise. I just read an article where they built a 400 horsepower sbd motor with only bolt on parts. It was a magnum, huge cam everything was doable for a guy like me except the $2,000 aluminum heads they threw on it

Red97

huge cams like huge converters. I believe the stock tbi would be the "bottleneck" yes the intake is restrictive but I believe the stock tbi is more restrictive.It sound like you would be money ahead by putting a rv/truck cam in your motor. The big valves do not really help produce good low end torque where your tbi really shines also a cam big enough to take full advantage  of thos 2.02 valves would have you spinning around 6500. and need around a 3000 stall. just my .02$

Jjay78

get rid of the tbi and get something that will actually let that motor inhale some air!!
chevvv ==rf chevgal There's plenty of room for all god's creatures............ right next to the mashed potatoes.... ==rf chevgal chevvv

4x4xdodgeman

i see he listed alot more info on greatlakes4x4 then here. it changes any thing we have said here.

BigCountryDRC

#7
Quote from: 4x4xdodgeman on March 06, 2012, 08:03:09 AM
i see he listed alot more info on greatlakes4x4 then here. it changes any thing we have said here.

I'm not talking about the issues with my truck. All im asking is why wont a dual plane intake work with my TBI. I Started a thread on gl4x4, but I dont get any real useful answers. Plus thats gotten so far off track its not really helping me any

BigCountryDRC

Quote from: Red97 on March 06, 2012, 01:35:59 AM
huge cams like huge converters. I believe the stock tbi would be the "bottleneck" yes the intake is restrictive but I believe the stock tbi is more restrictive.It sound like you would be money ahead by putting a rv/truck cam in your motor. The big valves do not really help produce good low end torque where your tbi really shines also a cam big enough to take full advantage  of thos 2.02 valves would have you spinning around 6500. and need around a 3000 stall. just my .02$

I read heard somewhere that a stock dodge TBI is a 670 CFM? Do you think that sounds right? If I was to run a carb how big would you go?

Quote from: Jjay78 on March 06, 2012, 03:43:28 AM
get rid of the tbi and get something that will actually let that motor inhale some air!!

I'm bebating swapping motors now. I've got another a pre-emissions 360 but it will need rebuilt. I just figured if the TBI is big enough to run it with a rv cam and my j heads id leave it on. The only other thing is the intake.

Tex

#9
can u tune your coputer toaccept whatever cam you put in it? just 4 warn, i put a preformer rpm on my 95 chevy tbi and just got a adapter plate fromcarb to tbi

Red97

A modified tbi is around 670 so i would guess a stock one to be around 550-580 ish. I have read that the older dodge computers dont like many cams. you would probably have to get a computer compatable cam for your ram. I have heard of good results using a good 4bbl intake with the tbi ontop. If you have the funds to rebuild the other 360 than that would be the route i would go. put the good heads on it a .480 ish cam 218-225 duration at .050 and a 650 or so carb and you will have a good running motor all the way to 5500 rpm.

BigCountryDRC

Quote from: Tex on March 07, 2012, 12:36:27 AM
can u tune your coputer toaccept whatever cam you put in it? just 4 warn, i put a preformer rpm on my 95 chevy tbi and just got a adapter plate fromcarb to tbi

I called comp cams. They said I can run all the way up to a .520 w/o flashing/messing with the computer.

Quote from: Red97 on March 07, 2012, 01:52:56 AM
A modified tbi is around 670 so i would guess a stock one to be around 550-580 ish. I have read that the older dodge computers dont like many cams. you would probably have to get a computer compatable cam for your ram. I have heard of good results using a good 4bbl intake with the tbi ontop. If you have the funds to rebuild the other 360 than that would be the route i would go. put the good heads on it a .480 ish cam 218-225 duration at .050 and a 650 or so carb and you will have a good running motor all the way to 5500 rpm.

I was hoping to throw a good rv cam in it, dual plane intake, my j heads and woller rockers then build me old 360 out of the truck on my own time with no rush. That way a had a good strong running motor in it and all the time in the world to build the other one. Its going to take a good amount of $ and thats gonna take a good amount of time.

So what does it actually take to run a TBI on that intake? Just the adapter?

BigCountryDRC

Tex where did you get that adapter from?

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