need engine help

[kamikaze]

I have an 83 944 all motor. what are some good mods to do besides intake and exhaust.. how do I get more power out of this little engine.

[SoCal Driver]

Bore and stroke to 3.0 Liters. Note; the stock rods are forged and are the same as the turbos. All the other rods are cast.

[Mike B]

You'll hear this more than once...Enjoy the car as it is...Save up some coin and pick up a 944 turbo...

Welcome to the forum.

[kamikaze]

the rods are forged?!!!!?? I hear that putting a turbo on this car is pointless due to the rings.. they cant take it.... it is a shame the car is in perfect shape has a fresh head gasket all new valves..runs prefect. it is just slow..... I am trying to find a decent priced 944 but they are hard to come by.. ohh on the stock air box there is a big vacume hose connected to the box.. if I eliminate the whole box what do I do with the vacume line?? if u know anyone with a decent turbo 944 who wants a trade and some $$ ket me know

[SoCal Driver]

The only thing you want to do to the air box is remove the snorkel that goes through the front fender. You should be able to take it out of the shoulder fitting at the air box. Any other mods might look hot but are a waste of money.

Don't mess with anything else on the intake or you will screw up the electronic fuel injection system.

I didn't say the pistons are turbo pistons. The turbos are dished at the top to reduce the compression. Now these just might have the same rings as the turbos but I don't know.

The rods on the 83's are the same as the turbos as is the crank and the block. The heads have ceramic lined exhaust ports because of the higher temps of the exhaust gasses. I think the turbo cam has a different timing too.

If you have $3,000 you can make the 2.5 L engine into a plus 3 L screamer without the turbo. Or for double that you can just buy a 944 turbo (a 951) and keep the 83 as a back up car.

By the way when was the last time the timing belt was changed? If you don't know change it NOW!

[Britwrench]

The '83 block is not the same as a turbo. Blocks made for the '85/2 and above model years are the same.

[SoCal Driver]

Originally posted by Britwrench
The '83 block is not the same as a turbo. Blocks made for the '85/2 and above model years are the same.

My mistake. It's that cooling coupling thing right?

Other wise it's the same?

[ae1969]

The liners are thicker I believe in the 85/2 and above......

The original rings were different.... but now parts suppliers seem to be using the 944 turbo rings with the better spring (oil scraper) ring for the NA's as well.

SoCal? how much of a gain do you get from the 3.0 L bore.... in an NA, I have only seen turbo examples of the 3.0 L bore?

[SoCal Driver]

OK Thicker piston walls -- that important?

Only piston diff is the oil ring assembly (besides the dishing)?

3.0L bore and stroke. Think its the 2.7 L crank.
Anderson Racing did it I think.

http://www.andersonmotorworks.com/interior.asp

They did bore it out and add steel liners. don't remember if they used the forged rods. Had to get new pistions. Knife edged the crank and removed the counter balance shafts. 8 valve head with bigger valves.

Was posted here or on Rennlist.

[kamikaze]

the timing belt head gasket and all new valves were installed... I heard that if u take out the air box it will make a different tone? where should I install the cone filter?

[SoCal Driver]

So what if it makes a "different tone".

Replacement of the stock air box/filter is a waste of money.

Just take the snorkel off where it enters the air box/filter unit.

Start thinking of what needs to be replaced on the suspension first.

You can be making all the "different tones" you want while a ball joint fails and you attempt to take out a power pole at 70 MPH!

[Frank B]

ummm.. yep.... do necessary repair first.. if you have all of this extra cash...

1- give me half of it, cause I'm a great guy, and people like me.
2- just buya Turbo and then rebuild the suspension front and rear, along with the motor.
3- get a 959, and you'll become a god amongst us mere men.
4 as far as tone goes? well, I like a nice Strat or Tele through an old Fender bassman or a nice old Plexi.. yeah.. that's tone..

Frank B

[944freak]

The line on the airbox is a breather line. It releases some pressure from the valve covers. If you get rid of the airbox the best thing to do is follow the hose to the engine and put a little breather filter where the hose connected.

[944freak]

SoCal Driver a 3.0 L engine build for $3000. I've never saw this, If you can find it send me a link to the build.

[kamikaze]

well I totally aggree with replacing what needs to be replaced. meaning all new struts.. but what are the odds of getting all the turbo parts off of the 86 and up and throwing then on my 83 and running low boost..?? and having it all work? I guess my last option is to take the head and shave it for some super high compression..

[Shepper]

Originally posted by 944freak
SoCal Driver a 3.0 L engine build for $3000. I've never saw this, If you can find it send me a link to the build.

I'm interested in this too, SoCal.

I'm trying to figure out what to do with the engine that is laying on the floor of my garage.

[wjk_glynn]

Originally posted by kamikaze
I have an 83 944 all motor. what are some good mods to do besides intake and exhaust.. how do I get more power out of this little engine.

Adding forced induction is the only way to make significant power. I'm sure these companies will be willing to take your money:

http://www.weissach.net/924-944-968_Suppliers.html#SuperchargersTurboConversions

Karl.

[todwic]

nice link, Karl!

[SoCal Driver]

Originally posted by 944freak
The line on the airbox is a breather line. It releases some pressure from the valve covers. If you get rid of the airbox the best thing to do is follow the hose to the engine and put a little breather filter where the hose connected.

Put on your glasses and take another hard look at the black rubber hose that bends up and into the top cover of the stock air filter box.

It comes off of the belt covers in the 944's.

The engine venting comes off the top of the oil filter labyrinth.

Also check my prior post for a link to Anderson's web site.

[todwic]

What is "knife edging the crank"? Sounds like an amphetamine euphamism.