Jussi Alanko
Member
- Joined
- Jun 5, 2020
- Location
- Finland
Hi ieveryone, now it's time to found out will stock b21a bottom end take about 1.5bar of boost, thats the boost level which i want to crank out 400hp.
I picked out a strongest block what redblocks had to offer and that is b21a block. Then i installed refurbished forged crankshaft and a new auxiliary shaft bearings.
At this moment i'm filing the pistonr ring gaps, first and second ring gap has been growed to 0.55 stock to 0.75mm, this is what the machine shop and mahle, wich pistons i use, recommends to me.
I use mahles cast piston with -9cc dish and head is a 46/38 ported 530 with flow numbers of 220hp.
Camshaft is a adv.330 duration and a 280duration in 1mm.
Now i accidentally broken pair of piston rings so i had to order new ones which arrived at next week.
I have this build with lvr racing engines which make me the head and give a couple of good hints about cooling and stuff, those are not be original.
I picked out a strongest block what redblocks had to offer and that is b21a block. Then i installed refurbished forged crankshaft and a new auxiliary shaft bearings.
At this moment i'm filing the pistonr ring gaps, first and second ring gap has been growed to 0.55 stock to 0.75mm, this is what the machine shop and mahle, wich pistons i use, recommends to me.
I use mahles cast piston with -9cc dish and head is a 46/38 ported 530 with flow numbers of 220hp.
Camshaft is a adv.330 duration and a 280duration in 1mm.
Now i accidentally broken pair of piston rings so i had to order new ones which arrived at next week.
I have this build with lvr racing engines which make me the head and give a couple of good hints about cooling and stuff, those are not be original.