What rods with 1098 crank
Turbo Mini Forums

Do you use the A+ 998 ones or are they the same?

Paul

I seriously doubt it!

if you use a 1098 crank and 998 rods, wouldnt you have to pocket the head?

Im assuming whoever has done this before has used short height pistons or the 1098 rods are shorter. I dont know

Paul

I seriously doubt it!

Use standard 1098 or 998 rods, they are both the same. A+ probably better.

You just need short height 1098 pistons.

Minisport.aus do hypatecs for 1098.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Cheers. Do they do oversize ones?

Paul

I seriously doubt it!

They do +0.040" and +0.060".

http://www.minisport.com.au/category5_1.htm

They are standard type slotted pistons rather than high performance. Veg is using them in his 1100.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Cheers Paul

Paul

I seriously doubt it!

I will also be using those +60 hypatecs onmy engine. It will never be finished though so I have nothing useful to contribute on their performance

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse

A ones are better than A+ as they are fully floating small ends. However, the A+ rod bolts are better.

That's a good point. You will need the early A+ rods with the bushes for the fully floating pins.

You can still use the press fit, but piston removal would be tricky at rebuild time.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Thread resurrection.

I stripped my 1098 motor today to look at what I need to do.

Vegard did you stress relieve your 1098 A rods? pics?

Are ARP bolts available?

Paul

I seriously doubt it!

You can get ARP bolts from Minispares, but out of stock at the moment.

[url]http://www.minispares.com/Product.aspx?ty=pb&pid=33886&title=CON ROD BOLT/NUT KIT 998/...[/url]

Maybe not necessary for road use.

I don't think that you will need to do anything with the rods either unless you are planning on high revs.

EDIT - Link doesn't work for some reason. The ARP part no. is 200-6207 on the set in my hand.

Edited by Paul S on 12th Oct, 2009.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

I seriously doubt it!

As a point of note I have been told if you get the +80's from aus for the 998's they have holes not slots.

Edited by gr4h4m on 12th Oct, 2009.

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

Well, you can always go the whole hog and get MED to lighten, polish and then shot peen them:

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

It dont look like theyve taken much off does it

I seriously doubt it!

They have actually machined each side of the big end which does not show up well in that picture.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

I can see the flats around the bearing holes.

Did they do your crank too Paul? pics?

I seriously doubt it!

They did both my 1275 and 850 cranks.

850 Crank:


I don't think I've got a picture of the 1275 crank.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Arent they the same pistons? I thought it was the crank and rods that were different

In boost we trust

Rods are the same, pistons have the shorter compression height.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

From calculations it is 3mm shorter in compression height.

Anybody with +120 or +80 998 pistons can measure the thickness of their crown ?

(I just picked up a 1098 crank for 30 euros and am contemplating building the largest turboed SBU possible)

Rusty by nature

You cannot use 998 pistons in an 1098. End of discussion.

Edited by Vegard on 18th Dec, 2009.

What about imp pistons they work with 1098 cranks