Hi. I have a question about a 98 eagle talon 420a. I hope to get the right answer by explaining what all mods i have first, but before i do ill say what brings me to the question, i bought this car and it had a huge knock and was not holding an idle...i got the car tore it apart and the pistons were je 8:1 with like 3000 miles on them and they were straight up trashed with chunks missing from the top and grooves in the cylinder walls....


to start with mods
- stage 4 cams with ignition box and a remote retarder, apexi safc II with software update not to sure what was updated??, autometer air fuel gauge, hahn racecraft 16g turbo with front mount piece, i bought a used block took it to a machine shop and had them bore it out .20 over with wiesco pistons and eagle rods, acl main and rod bearings, they pressure checked everything but i havent even put it in yet... i got a new oil pump and a stage II clutch and timing belt kit from ci motorsports inc. but im waiting on it to get to my house but i just wanted to see if anything special i should do before i start this car......it is way outta tune on the afc and cam adjuster and im sure theres more than just that.....i hear to run reg oil so the rings seat but how long should it idle, when should i change the oil...etc etc.. anything else you wanna add or i need to kno?



also my damn intercooler pipes are literally sitting on the ground is that the way the 420as setup or is there another front piece with piping i should run

hmm first, an apexi safc II isnt the best for tuning with a 420a. I suggest megasquirt or the hahn protfueler. Yes on running regular oil for like the first 1000 miles. I ran regular oil for the first 1000, then did it again until i hit 3000 then i switched to full synthetic. make sure you take your time and have all your timing right. are you doing this yourself or having the shop put it all together? What kind of cams are you using exactly?

Check the turbo for shaft play. And make sure before you start it you prime the turbo.

disconnect the wastegate from the flapper, NOT THE VACUUM LINE the flapper.
(don't go over 55mph and try to vary the rpm)500 miles then change oil (don't go over 55mph and try to vary the rpm)1500 miles then change oil again

you are good to go from here, but don't spank the shit out of it. get it tuned and have fun

i actually had the machine shop do the bore and everything, they turned the crank and put the pistons in i just gotta put it back together..im not exactly sure about the cams, i guess crower it also has an ignition box on the passenger side floor mounted with a controller that adjusts the cams..how should i set that ??? also ...im not really sure what u mean by prime the turbo tho????????? also do the 420a s hold up on a good amount of boost or will i have to rebuild it every year

they hold up good unless you dont tune it right

priming the turbo consists of unplugging the fuel injectors and cranking the engine for 3 bouts of 30 seconds each. that will push oil into it

I believe you can also disconnect the coil.

It would be the distributor cap bc thats what 420as have. You can do that, you'll just wash your pistons with fuel.

nope, jon was right its a coilpack. but milman you are right about the wash

I heard running thicker oil on the first 500 helps the rings seat better. But I also heard that it's recommended to run the same weight at startup as you would run normally. Any imput?