im looking for a rebuildable 420a for my eclipse......the one thats in it now has a bad knocking sound when it gets into the 2500 to 3200 rpm range but does not knock under acceleration. dont know what to think....i just got the car 2 months ago the noise started a few days ago.im new to the japanese cars .i have mainly owned porsche 944 t's.any input would be appreciated.

 

I would say its probly a spun bearing.

a 944 huh? What trim/engine you have? I know my porsches pretty well

 

i have owned over a dozen 944 turbos and a few 928 and 24's my last creation i just sold was a 1989 320 hp 944 t......right now my garage only has a 97 eclipse with a knocking sound and my good o;l faithful rvt rc 51.....ya its a honda......lol

 

HAHAHAHA i HATE 928s. They suck. 944s have massive potential.

Well it sounds like you have a rod knock or a spun bearing.

 

I would do a compression test to see how they are working first.

 

thanks guys i also talked to another guy who builds these type of engines over in the N.Y. area he told me probably a wrist pin .either way its annoying as hell and its gotta be fixed this is why im needing another motor to build while i drive this one till she goes completly south ....but in your opinion is it cheaper to build a mod. motor or buy a long block already done .....crap these motors are not cheap!!!.....i can pick up a 944 engine for half the price and they are easier to find...

 

lol its because you know were to look...

www.slowboyracing.com does a good 420a longblock.

 

cool thanks ......so are these engines a pain in the a-- to pull....? front wheel drive ...all new to me...fact is this is the first front wheel drive car i have owned ....and if i go the route of building my own instead of buying a long block.....any suggestions on what it will take to get this little 420a to run around the 250 pony range without taking a second motgage on my house to do it??

 

oh and as far as the 928 sucking.....ya i admit the look a bit like a euro pacer but if your looking to build a bad a-- drift racer look no farther than the 5.4 liter 928s 335 stock hp with a 45-55% wieght distribution besides the 944, its the only car of its time to be able to achieve 3.5 g"s in a corner and still keep all four corners on the asphalt....side step the clutch and boom your sideways ...just make sure your pointed in the right direction when it hooks up ...

 

250 is very acheivable but it will require a fully built block and a good turbo and tune. Search around here a bit cuz i know this has been discussed