4age Crank Info for 4agte usage

[30psi 4agte]

what pistons and rods do you run mate?

Std Rods and Std GZE pistons.... on my new engine the only thing that is going to be changed are the rods as my rpm is getting up there now. Im basicly cutting the power at 9k.... It would make more power if i let it rev further but im not too sure on how much further i can go

Allencr: Crank is std size journals. I wouldnt hesitate on using a undersize crank...... depends on how far undersize it has been ground ,but in moderation..... no wouldnt have an issue with it.

[Sam_Q]

this is probably pointing out the obvious to yourself but at those revs you need to shim your pump to have higher pressure.

[30psi 4agte]

this is probably pointing out the obvious to yourself but at those revs you need to shim your pump to have higher pressure.

yeah i agree...... to be honnest though... at that rpm there isnt alot of difference in the oil pressure vs no shim.
I noticed my major difference in the pressure low in the rpm range.

[dangdang]

My bottom end has definitely ended up as overkill then! New crank, spool rods, Aries pistons, and tossed the underground crank, not because I didnt trust the crank I just dont trust any other shells than ACL race series.

[Casey-G]

King are good... i've been told personally that ACL aren't all they're cracked up to be.



+1 to std gze slugs, does anyone know how many are left in stock over in japland?

[trdee]

Std Rods and Std GZE pistons.... on my new engine the only thing that is going to be changed are the rods as my rpm is getting up there now. Im basicly cutting the power at 9k.... It would make more power if i let it rev further but im not too sure on how much further i can go

daaammnnn. how much punishment does it take? street/drag/circuit?

[dangdang]

King are good... i've been told personally that ACL aren't all they're cracked up to be.



+1 to std gze slugs, does anyone know how many are left in stock over in japland?

Geez we cant win mate, you got told "personally" as did I that ones crap the other gold....two different brands??? Gotta trust your man who's doin the tricky bits for you in the end (machinist)

Gze slugs...price em NOW.. if my cranks anything to go by you may be onto a winner!!

[trdee]

he doesnt need to price them. i can tell you

$500

[oldeskewltoy]

hehehehehe.... found some interesting bottom end info recently.........

1) shotpeen the main caps....

2) check around... most times a 4A crank breaks, it is either @ the 2nd main, or the 4th main. Hasselgren would machine the block skirt @ these 2 mains, and then add a hardened strap across main # 2 and #4 and they would be tied into the block walls! No other straps, or reinforcement was needed.

[30psi 4agte]

daaammnnn. how much punishment does it take? street/drag/circuit?

Plenty!
mostly track work and hill climbs as we dont have a drag strip easily accesable anymore.

[trdee]

good to hear man!

[dangdang]

hehehehehe.... found some interesting bottom end info recently.........

1) shotpeen the main caps....

2) check around... most times a 4A crank breaks, it is either @ the 2nd main, or the 4th main. Hasselgren would machine the block skirt @ these 2 mains, and then add a hardened strap across main # 2 and #4 and they would be tied into the block walls! No other straps, or reinforcement was needed.

So it sounds like at worst the engine cracks the main caps which spins the bearings = bearing/crank failure.

And 30psi 4agte, your car was some of the motorvation to get crackin on my build.

[30psi 4agte]

So it sounds like at worst the engine cracks the main caps which spins the bearings = bearing/crank failure.

No ..... at worst they split bores. But thats a whole new thread

[dangdang]

Split bores! Doesnt sound fun lol...

[oldeskewltoy]

Hasselgren would machine the block skirt @ these 2 mains, and then add a hardened strap across main # 2 and #4 and they would be tied into the block walls! No other straps, or reinforcement was needed.

enjoy!!