Cuda416
Well-Known Member
Oh, and as a parent, I'll say they are just trying to look out for you. Maybe try to get them in on the project.
1991 360la
- Thread starter 91dowdge
- Start date
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Yeah as I said it only has 74k miles. I already have the cylinder heads off and there almost 0 carbon build up. I originally planned on doing a cam and maybe an intake. The problem with tbi is that upgrades are incredibly expensive.
My dad doesn't want me adding power until it runs good. It runs and drives fine but I had a very complicated wiring problem and he seems to think I cant fix it. He also seems to want me to put the engine back in before I by performance parts. Seems pretty odd to me
TT5.9mag
Two atmospheres are better than one
Upgrading the tbi wont get you anywhere really. Replacing it is a good idea if you’re after power. But check local laws and make sure you can. Here we don’t get away with stuff like that. It has to be older than 75 or it has to pass a sniffer and a visual test. For your first engine use what you have and keep the parents happy. Upgrade it as budget and time allows. First steps are easy, cam, intake, carb, headers. Those will take you pretty far. Don’t go crazy and get race car parts for a truck, you won’t be happy. Like I said early in this thread, find a machine shop local to you and ask them for advice.
TT5.9mag
Two atmospheres are better than one
It might seem odd but it’s clear your dad is trying to keep you from having a pile of parts in the yard. You’ll have to prove your skills to him and show that you can make good decisions as well as the right decisions. Get him involved and ask him to help you.
Is it difficult to swap from tbi to carb
TT5.9mag
Two atmospheres are better than one
As far as turning the wrenches, no it’s super easy. Usually an intake and a carb are all you need. Some various fittings for coolant temp and heater hoses, and auxiliary stuff like that. Getting rid of the wiring and control side of the tbi is another part of it and again takes time to sort through but is relatively easy.
Cuda416
Well-Known Member
No, it'
No, not really but in either case, you need to understand how things work in the first place. That's not a dig, just a fact.
My son and I did the swap without too much trouble and he knew literally nothing. Hardest part was getting him to slow down.
I'll reiterate, show them you can get it running as is. It will show basic know how, demonstrate patience and follow through. Then, save up again, go find a builder motor and work on that.
No, not really but in either case, you need to understand how things work in the first place. That's not a dig, just a fact.
My son and I did the swap without too much trouble and he knew literally nothing. Hardest part was getting him to slow down.
I'll reiterate, show them you can get it running as is. It will show basic know how, demonstrate patience and follow through. Then, save up again, go find a builder motor and work on that.
Cuda416
Well-Known Member
Small detail but ignition will change as well but again, super easy
TT5.9mag
Two atmospheres are better than one
Thanks for that. He'll need a distributor and an ignition system.
TT5.9mag
Two atmospheres are better than one
And from another thread @Garrett Ellison says the voltage regulator is controlled by the tbi ecu so he’s going to need an old school Voltage regulator and associated wiring as well.
Ok. I just needed some reassurance. After my wiring mishap I've gotten pretty good at it so im not too worried
TT5.9mag
Two atmospheres are better than one
If you have basic mechanical skills you’ll do fine. I learn by doing so I typically just jump right in and tear stuff apart and make mistakes then fix em. I’m not suggesting you do that, but sometimes the only way to know how deep the pool is, is to jump in.
Thats what I've been doing my whole life
Okee dokee
I was talking with my uncle today who has fairly extensive knowledge with engines. Not mopar though. He brought up that the tbi in my truck wouldn't react well to a camshaft. Is this true and if so how would I get around that.
Cuda416
Well-Known Member
Normally you would need to get the ecu reprogrammed so he's right. there may be a cam that's a slight upgrade from stock that doesn't require that but if you're going to get a cam you might as well get rid of the tbi etc. Figure out what your actual real world goals are and start from there. Make the tough decisions now and stick to them as your guide. your goals will dictate the requirements. You will either find out its within your budget or it's not.
Wouldn't it mess up my ecu to take the tbi out or no. Im not sure but my uncle also said something about a carb swap affecting my distributor considering that it needs a certain amount of fuel pressure to make spark
Cuda416
Well-Known Member
Carburetor doesn't push, it provides what the engine needs.
Cuda416
Well-Known Member
Yes, getting rid of rhe tbi means getting rid of rhe ecu.
Go check this page for some good info
Magnum Swap -your source for Mopar engine swap information.
TT5.9mag
Two atmospheres are better than one
My opinion is you either need to keep the tbi and keep the engine stock, or ditch the tbi/ecu and put a carb on it and modify the rest of the engine to suit. The tbi/ecu combo is not easily tunable and doesn’t responded well at all to tuning if you could even find someone to do it. The technology has moved passed those old systems.
Does a TBI engine have capability for a mechanical fuel pump if he goes carb?
It actually does. I just found that out today
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