Forged internals??

mayPOR944 · mayPOR944's Garage

do 944 2.5 or 2.7 or 3.0 have any forged internals or they just all cast
how much power can they handle

Rasta Monsta · Rasta Monsta's Garage

I think the 83 2.5 had forged rods. The 951 might have as well. . .I'm sure someone will pipe up.

mayPOR944 · mayPOR944's Garage

they were forged steel, then they put aluminum cast in

KEV951 · KEV951's Garage

all 951 internals are forged , the rods can handle about 500 hp, nice and beefy. get the crank nitrided if your racing,

smokin_944 · smokin_944's Garage

The early Series 1 car, the 83 was forged internals but that changed in 84. Then only the crank was forged, the rods and pistons cast. The 85.5+NAs only had the forged crank whereas the 951 cars were forged internals. I don't know that I would believe the stock rods of a turbo can handle 500 hp or Carillo, Pauter, Wossner, Arias (to name but a few) would not be used in high horsepower applications.

mayPOR944 · mayPOR944's Garage

thats pointless, even tho i wont make the power nor want it just cast pistons and crank sounds like a bad idea

mayPOR944 · mayPOR944's Garage

manual says cast crank and pistons, thats dumb
and is this a sleeved motor some people say it is im not sure

nynor · 10-23-2010, 09:30 AM

stock motors are not sleeved.

HondaDustR · 10-23-2010, 09:52 AM

Ok, this is weird. The section on connecting rods calls the early rods sintered, but the spec sheet at the beginning of the manual calls them forged. The crank is forged.

smokin_944 · smokin_944's Garage

HondaDustR, I don't remember where I read it, but some racing guys claimed the 83 rods were forged, ulike the later year NAs. Hopefully someone will pipe up with the explanation.

nynor · 10-23-2010, 04:04 PM

that is the case. i don't have an explanation.

Vicious · 10-23-2010, 07:53 PM

i can verify the 83 having forged internals, when i tore mine down for rebuild i expected to find cast. but all the stock parts are forged steel.

Dean924s · Dean924s's Garage

I used an 83 short block in my car for just that reason.

smokin_944 · smokin_944's Garage

Thank you Nynor, Vicious and Dean for the info. Comes in handy when buying engine parts and such.

matthewb · 10-25-2010, 07:45 AM

Quote:

Originally Posted by mayPOR944

they were forged steel, then they put aluminum cast in

I can promise you that they did not put in aluminum rods.

ernie9944 · ernie9944's Garage

Quote:

Originally Posted by smokin_944

Thank you Nynor, Vicious and Dean for the info. Comes in handy when buying engine parts and such.

One more for the (forged) they are was on my 83 for sure.

Rasta Monsta · Rasta Monsta's Garage

Just like the FSM pages posted by HondaDustr states: initially forged, then cast from 2/84 forward.

*"Sintering" is a forging process, AKA "powder forging"