TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

cam and intake swap start today!!

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Old Jun 21, 2004 | 10:20 AM
  #1  
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Car: 1988 Trans Am
Engine: 305 TBI
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cam and intake swap start today!!

well its 11:16 and i started around 8am and everything is pretty much apart

Intake is off, rockers lifters, all out(not one problem with lifters pulles right out BTW)

I only need help with the crank pulley (extra hand to stop it from turning, and then the cover will come off.. also waiting for tool to take out valve springs....

I'm also going to do my valve seals since the springs are coming off why not right......

whats else.. Lots of video no pics though i dont have a digital camera, but i dont have a weebsite to post the bvideo at anymore so idk

also going to do ultamate TBI mods as well, As well as fuel pressure regulator and the O2 sensor volt meter thing..

what was a simple cam and intake is a complete fuel and performance rebuild hahah i'm havin a blast i'll keep everyone posted


only one problem i see.. with the FPR.. it says drill out the cap do they mean drill right through or just shave away the top so I can turn the threaded shaft ...thanx for listening :lala:
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Old Jun 21, 2004 | 10:23 AM
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Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
Re: cam and intake swap start today!!

Originally posted by TransAmTBI
I only need help with the crank pulley (extra hand to stop it from turning, and then the cover will come off.. also waiting for tool to take out valve springs....
put the car in gear, and engage the e-brake.
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Old Jun 21, 2004 | 10:33 AM
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Car: 1988 Trans Am
Engine: 305 TBI
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ok i am officially a dumb a$$ hahah
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Old Jun 21, 2004 | 10:37 AM
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Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
Originally posted by TransAmTBI
ok i am officially a dumb a$$ hahah
Don't worry about it. that is nothing, i have had to re-tap my crank before (actualy we are still trying to figure out what went wrong.)
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Old Jun 21, 2004 | 02:43 PM
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From: NJ
Car: 1988 Trans Am
Engine: 305 TBI
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cam is officially out!! woohoo... still havin a blast and KNOCK ON WOOD... everything is going smoothly!!
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Old Jun 21, 2004 | 03:07 PM
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Any plans for chip burning. Glad to hear everything is going well. Keep us posted.
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Old Jun 21, 2004 | 04:23 PM
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From: NJ
Car: 1988 Trans Am
Engine: 305 TBI
Transmission: th700R4
new cam is in!!!! larks seemj like they are perfectly lined up I did the dot to dot technique...... also TBI is grinded it looks sweet as hell.... alsop FPR is drilled out and i'm begining the wiring on my o2 sensor to make sure i'm not too lean or rich....


chip is in the mail!! oh man this is great lol
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Old Jun 21, 2004 | 05:58 PM
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by TransAmTBI
new cam is in!!!! larks seemj like they are perfectly lined up I did the dot to dot technique...... also TBI is grinded it looks sweet as hell.... alsop FPR is drilled out and i'm begining the wiring on my o2 sensor to make sure i'm not too lean or rich....


chip is in the mail!! oh man this is great lol
Make sure you rotate the crank untill the dots are at 12 and 12. You want to be at #1 firing TDC and not #6. Sounds like you are doing a great job.
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Old Jun 21, 2004 | 06:23 PM
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Car: 1988 Trans Am
Engine: 305 TBI
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hell yeah i did that started with dots at 6 and 12 then rotated the crank and now both dots are at top of gear...

i had to go to the store and put fittings and plugs for my manifold so I finished up the day with putting in the lifters in and scraping old gasket material off timing cover..

so far it doesnt seam that i broke the oil pan gasket and its when I put the timing cover back on that i should unbolt all the oil pan bolts right?

the ultamite TBI mods went amazing... i'm going to post pics to show what an amazing job my friend did with his dremmel.

tomorrow i'm going to start undoing the plugs and get ready for my valve seals and springs as well as put timing cover back on and start bolting up the new intake.. hopefully i'll have everything bolted back up by tomorrow night...

if that goes well, wed i'll start my brakes and front springs and if i get that done maybe i'll swap the rear out of my spare camaro... ohhhh the possabilities! hahaha.. thanx for all teh inputs so far
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Old Jun 21, 2004 | 06:25 PM
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Re: Re: cam and intake swap start today!!

Originally posted by Dewey316
put the car in gear, and engage the e-brake.
Good luck doing that with an automatic.
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Old Jun 21, 2004 | 07:15 PM
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by TransAmTBI

so far it doesnt seam that i broke the oil pan gasket and its when I put the timing cover back on that i should unbolt all the oil pan bolts right?
You can loosen them and drop the pan without taking it off. Or you can snip the tabs off the cover so you can slip it back on. The oil pan method is the best way to ensure no leaks later on. I snipped my cover and yet to have leaks. Fingers crossed.....
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Old Jun 22, 2004 | 08:40 AM
  #12  
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Car: 1988 Trans Am
Engine: 305 TBI
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you mean snip that metal thing sticking out from the timing cover?? never heard of that one ... i'll take a look at it today thanx for the info
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Old Jun 22, 2004 | 08:44 AM
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Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
i think you are better off loosening the bolts, to lower the pan, with a 1 peice seal, getting it back in without screwing up the seal is a pain.

btw, i take all but the back to bolts out, and i just loosen those enough to slip the cover in.
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Old Jun 22, 2004 | 10:14 AM
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Car: 1988 Trans Am
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well heres my thought.... i cant get to the bolts right underneith the crossmember..... but the timing cover gasket kit came with a rubber seal for the bottom so what if i just pop out the old seal and replace it? good idea?


the rain is hindering my process now but i put my throttle body back together but want to take pictures of the awsome job my friend did on this...


if the rain tappers off i'm going to put on the timing cover, crank pulley, intake and TBI damn rain...

day 2.. going slow
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Old Jun 22, 2004 | 10:22 AM
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From: Portland, OR www.cascadecrew.org
Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
that rubber seal is for pre87 blocks. the later 1 piece blocks don't use that. that seal is integrated. you can get the ones under the cross member. use a 10mm shallow socket.
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Old Jun 22, 2004 | 11:01 AM
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consider adding a fuel pressure gauge. non liquid. i think the cheap summit is the choice.
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Old Jun 22, 2004 | 11:39 AM
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From: NJ
Car: 1988 Trans Am
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i thought of that but since i got the o2 sensor wired up i shouldnt have to but its always an option i'm trying to save as much money as possible
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Old Jun 22, 2004 | 12:22 PM
  #18  
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From: NJ
Car: 1988 Trans Am
Engine: 305 TBI
Transmission: th700R4
it seems i have met my first obsticle...


the timing cover will NOT go on... i'm literally tearing my oil pan gasket to shreds... half the oil pan bolts are out,, the ones on the starter side i can not get to but the first 5 on that side are out pan will NOT budge...


the bottom of the gasket is fine its the siides that are tearing.. i dont know how the hell i'm going to do this
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Old Jun 22, 2004 | 12:49 PM
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From: Portland, OR www.cascadecrew.org
Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
get long extensions. you need to take out all of the bolts, but the back 1 on each side. you need to loosen both of those.

you may need to loosen the starter (2 big bolts 9/16" IIRC)
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Old Jun 22, 2004 | 03:27 PM
  #20  
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From: NJ
Car: 1988 Trans Am
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ok new update... after many hours of pushing and cursing and a little help from dad i got cover on but i'm almost guarenteed leaks... I'll just have to see and seal it up gtood when i'm done..


new intake is on and i started bolting on the crank puley and harmonic balencer.. still hard at work...

is it ok to bang the harmonic balencer into place? or is there some sorta special tool
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Old Jun 22, 2004 | 03:29 PM
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Engine: 377 LSX
Transmission: Magnum T56
Originally posted by TransAmTBI


is it ok to bang the harmonic balencer into place? or is there some sorta special tool
You can bang it on but it is much better to just use the installer tool that you can rent at auto zone. I did not have enough space to swing the hammer to get the balancer on. The install tool really worlks well.
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Old Jun 22, 2004 | 05:27 PM
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From: NJ
Car: 1988 Trans Am
Engine: 305 TBI
Transmission: th700R4
i thnk i may have thattool lying around...


today was a disaster... took forever to got timing cover on and now I broke my injector pid... the botom peice of the two top pieces..

I was hookin some stuff up and routing my gass lines and The thing my gas lines screw into broke..

i can only pray I can find it online or in teh junkyard if not i will have to buy an entire new TBI and all teh work I did on the TBIU and FPR will mean squat!!

well i'm off to look for new parts
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Old Jun 23, 2004 | 06:09 AM
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From: Portland, OR www.cascadecrew.org
Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
Good luck finding the parts you need.

BTW, i always just pound the balancer on. i don't like to risk stripping out the crank snout.
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Old Jun 24, 2004 | 12:09 PM
  #24  
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Car: 1988 Trans Am
Engine: 305 TBI
Transmission: th700R4
ok everything is in place... day three will be like no work cause i'm concentrating on the oil pan seal and any other odds and ends...


I'm going to set a seal over night then tomorrow morning take it to my fatthers garage and use his air compressor to do the seals and springs then wait for my chip and TBI injector pod and fire it up
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Old Jun 24, 2004 | 05:33 PM
  #25  
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Car: 91 Camaro RS
Engine: 305 TBI
Transmission: T-5
Are you doing the chip burning yourself?
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Old Jun 24, 2004 | 10:04 PM
  #26  
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Car: 1988 Trans Am
Engine: 305 TBI
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noooo way i dont have the knowledge or the patience to do that i'm not looking for major horsepower gains.. just a feww here and there...

I like the bolt on stuff I hate fabricating and body work and I hate electrical stuff..

I bring my car to other people for that but i'll replace and engine anyday

so teh make a short answer long... no i'm not doing the chip burning myself I just want the egr burned out really all i need
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Old Jun 25, 2004 | 09:38 AM
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by TransAmTBI
I just want the egr burned out really all i need
You will need more than that if you want the car to run right.
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Old Jun 25, 2004 | 09:40 AM
  #28  
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Car: 1988 Trans Am
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not really i have talked to many prople who haent had their chip burned and have no problems.. to get max gains i would need to mess with the chip really


mechanically the car will run fine
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Old Jun 25, 2004 | 09:47 AM
  #29  
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From: Portland, OR www.cascadecrew.org
Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
mechanicly it will be hog rich at idle, run lean up high, have too much upper RPM timing, not have neough timing below 2k. but other than that.
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Old Jun 25, 2004 | 10:01 AM
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Car: '90 RS
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Transmission: Magnum T56
My car will barely idle with the stock tune. I only have the smaller B-body LT1 cam and stock heads. I can't run aything less than 8* advanced to keep it running. I can't see how people can run a cammed LO3 on the stock tune.

Last edited by ShiftyCapone; Jun 25, 2004 at 10:19 AM.
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Old Jun 25, 2004 | 10:05 AM
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210/216 @.05 on a 350 cid. exactly what happenened to me when i installed cam. car would not run worth a dam.. without chip tuning. now i was lean all over. idle seemed right on BUT super lean at street cruising to the point the check engine light came on with lean code. WELCOME TO WORLD OF CHIP TUNING !!
puting in a cam without chip tuning is pis++ng in the wind.
honestly it took all last summer to get car dialed in. burn/datalog/burn. this summer it is running like a raped ape.
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Old Jun 25, 2004 | 10:23 AM
  #32  
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From: NJ
Car: 1988 Trans Am
Engine: 305 TBI
Transmission: th700R4
I know alot of people running lt1 cam and upgrades with stock chip and run fin it seems alot of people have problems with upgraded heads and the rest of the mods all together


Listen guys relax... a chip is on the way... i gave him the specs of my cam and intake and my car....

BUt its not super tuned just enough to get ready for the upgrades..

I will never burn my own chips. worse comes to worse i'll always have someone else do it. i'll waste the extra 100 bucks i dont have the patience to learn about chip burning especially since these engine mods will be he only mods i plan on doing...

after this its a new rear but my money is going for my ws6 some day
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Old Jun 25, 2004 | 10:53 AM
  #33  
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by TransAmTBI
I know alot of people running lt1 cam and upgrades with stock chip and run fin it seems alot of people have problems with upgraded heads and the rest of the mods all together
My car barely runs with the stock heads and a tiny cam.


Originally posted by TransAmTBI

Listen guys relax... a chip is on the way... i gave him the specs of my cam and intake and my car....
I geuss we are trying to save you from dissapointment. I'd hate to see your excitment go downhill when you start the car and it runs slower than it did stock. You should at least look into data logging (free software) so that you can send the data to whomever burns your chips. They will get a much better chip than with no data at all. However, be prepared to send back the chip a few times since there is no real good way to PROM tune these cars without the person having the car there to work on. The car should eventually run fine but you will leave some power out of the mix.
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Old Jun 25, 2004 | 01:31 PM
  #34  
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I'm with Shifty on this one. I did only a small cam upgrade (LO3 to L98) and my car would barely idle and ran 1.5 seconds slower in the 1/4 mile with the stock chip.

I am currently on my 4th chip since doing all the mods and each one seems to get a little better.

With the stock chip your timing and fuel will be WAY off.

Do some datalogging and have the person doing the chip burn another after he looks at your logs. Your results we get better and better. And all you have to do is ride around with a lap top hooked up to your computer when you want to log data. Pretty simple!
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Old Jun 26, 2004 | 10:49 AM
  #35  
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Car: 1988 Trans Am
Engine: 305 TBI
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sounds like an idea i will look into all this one day... i'll have to borrow a lab top for i will never be able to afford one lol

i'll let you guys know how everything goes once i actually get it started once i get my injector pod haha

i actually read about data logging and the other options..

what about that hypertech tuner thing you just plug into the aldl port any good?
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Old Jun 26, 2004 | 10:54 AM
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From: Portland, OR www.cascadecrew.org
Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
the powerprogramerII won't work on OBD1 stuff like ours.

BTW, i paid $35 for the laptop i use for the car stuff.
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Old Jun 27, 2004 | 04:29 PM
  #37  
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From: NJ
Car: 1988 Trans Am
Engine: 305 TBI
Transmission: th700R4
you can get one that cheap?? where i ask where??

by the way everything is back togehther did the valve seals...(not so bad just tedious) and i'm awaiting my chip and injkector pod
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Old Jun 28, 2004 | 06:24 AM
  #38  
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From: Portland, OR www.cascadecrew.org
Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
ebay, it doesn't take much of a lap-top to datalog, you can get away with a pretty old, POS.
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Old Jun 28, 2004 | 09:59 AM
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YOU WILL NEED AN ADAPTER TO RUN OFF THE 12v CAR. ASSUME THE BATTERY IS SHOT.
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