[87 turbo coupe]

I have an 84 thunderbird turbo coupe. It has a walbro 255lph fuel pump, aftermarked boost controller, 8.8 rearend with stock gears, k&n airfilter, stock down pipe with a flowmaster. It is bored 30 over. My ??? is should i go with 42lbs injectors or more lbs per hour. Also what kind of gears to put in to get the most out of the 1/4 mile.

[Matt-Culpepper]

ummm... The engine is bored .030" over? is there anything else done to the engine? Does it have a ported head or anything? If not you have a long way to go before the stock injectors are maxed. You're next step up is to wire the car to run an LA3 computer out of an 88TC, a big VAM, and run 36lb injectors. This will carry you to over 315rwhp. The 8.8 came with 2.73-4.10 gears stock....you need to specify what you have. An 84 TC came with a 7.5" rear so if its been swapped I can tell you what gear it has. I would recommend 3.73s if its a 5spd car.

So in a nutshell....Post way more about your car.....

[87 turbo coupe]

Ok i hear ya i had an 84tbird that i swapped the motor and tranny into an 87tbird nothing done to the head yet i would like to know a good place to send it and what to get ported. Nothing done to motor all stock. If anyone knows is a head off a dirt track car with 350 intake and exhaust valves a good thing?? And also my turbo is almost done throwing oil in the inake what would be the right size turbo?? Its a stock garret t3 turbo now had an IHI for the 87 but went out!!!

[Matt-Culpepper]

Originally Posted by 87 turbo coupe

Ok i hear ya i had an 84tbird that i swapped the motor and tranny into an 87tbird nothing done to the head yet i would like to know a good place to send it and what to get ported. Nothing done to motor all stock. If anyone knows is a head off a dirt track car with 350 intake and exhaust valves a good thing?? And also my turbo is almost done throwing oil in the inake what would be the right size turbo?? Its a stock garret t3 turbo now had an IHI for the 87 but went out!!!

ok...thats def enough info to go a tad further. Since you are stick I would run 3.73 if you do much highway driving. Since you're car is all stock you DEF don't need bigger injectors, in fact as I mentioned you are a long ways off of that.

Avoid much of anything off of dirt track 2300s because they run high rpms and high compression. They shave the head beyond use and run cams that would be horrible in a heavy turbo car. Yes the small block chevy style valves are what we run in our stuff but they aren't exactly chevy valves.

The head that was on the 87-88 engine is a bit less likely to be cracked around the exhaust vavlve seats. If you still have that pull it off and send the head, intakes, and manifold if you want to stick with that to - BOPORT Racing Heads - Fremont CA He is the man and can really really bring these cars to life. You'll also want to AT MINIMUM a 3" downpipe which I have several of for your car. I recommend a full exhaust from Stinger performance. They sell a complete kit that installs very easily. STINGER PERFORMANCE PARTS - 2.3 Turbo Performance Parts for Mustang SVO, Thunderbird Turbo Coupe, Merkur XR4Ti, Pinto, Ranger, and Sand Rails

Two simple fuel system upgrades: a walbro 255 high pressure pump and a 5.0L kirban fuel pressure regulator.

Just watch ebay for a ford T3 turbo and you'll be fine for that.

So the list would go this way:
fuel system and turbo
Then the exhaust stuff
Then get all the port work done

You'll be left with a fun and reliable car.