Ok so I have a 1984 rx7 that I am building into a Silver State Road race type of car also to be driven on the street but not a daily. I have a NA vg30 motor with v52 heads and now I have gotten a vg33 out of a wrecking yard from a Xterra. I want to build a 600-900hp motor for the car here is some of the parts I am looking at using.
Vg33 block bored 1mm over.
Brc custom forged pistons
Vg30de crankshaft
eagle h beam rods
I have a 300zx intake manifold and am going to fabricate a square top intake with gm twin blade throttle body I have also began making trumpets for the inside
ARP main studs head studs flywheel bolts
Ferrea 1mm oversize valves intake and exhaust
OWO welded short turn ported heads
I want to fill the block up to water plugs
Port the water passages
Custom headers built for holset hx52 13cm turbine single turbo
For oiling I have a four stage dry sump pump and want to run dry sump. I figure road race motors need serious oiling and cooling so no brainer but pain in the rear.
I want to cryo the block and crank to give it good wear resistance
the questions I have are
What is the maximum cam lift and is that limited by heads or stock cam core? If stock cam core could I just make some new cam cores and have them ground more aggressively.
I have been trying to figure out how to modify the crank from cross drilled oiling but EPR does not do cranks alone I called and regardless of engine not much exists on what to plug and where to drill. i have seen on Subaru forums people drill extra holes 90 degrees to current ones to help alleviate high rpm problems with oil delivery.
I wanted to eliminate the hydraulic lifter aspect and shim them out. I have converted the stock rockers to adjustment screw so as to be able to set lash. Will just putting spacers in the lifters work successfully and will the top end oil well.
Are the roller rockers still available.
Also bottom end would cry treating and l19 studs be enough or should I start working on a girdle/ and if girdle then steel main caps with a steel plate like EPR or just a full skirt girdle like Buick v6 uses to tie the sides in.
Not much info exists on imsa girdles and I have no pictures of any would you guys have any or have any of you made girdles.
Initially I was going to do a Buick v6 alas that girdled could handle 700hp but for drag not road race that needs the 4000 dollar block.
Vg33 block bored 1mm over.
Brc custom forged pistons
Vg30de crankshaft
eagle h beam rods
I have a 300zx intake manifold and am going to fabricate a square top intake with gm twin blade throttle body I have also began making trumpets for the inside
ARP main studs head studs flywheel bolts
Ferrea 1mm oversize valves intake and exhaust
OWO welded short turn ported heads
I want to fill the block up to water plugs
Port the water passages
Custom headers built for holset hx52 13cm turbine single turbo
For oiling I have a four stage dry sump pump and want to run dry sump. I figure road race motors need serious oiling and cooling so no brainer but pain in the rear.
I want to cryo the block and crank to give it good wear resistance
the questions I have are
What is the maximum cam lift and is that limited by heads or stock cam core? If stock cam core could I just make some new cam cores and have them ground more aggressively.
I have been trying to figure out how to modify the crank from cross drilled oiling but EPR does not do cranks alone I called and regardless of engine not much exists on what to plug and where to drill. i have seen on Subaru forums people drill extra holes 90 degrees to current ones to help alleviate high rpm problems with oil delivery.
I wanted to eliminate the hydraulic lifter aspect and shim them out. I have converted the stock rockers to adjustment screw so as to be able to set lash. Will just putting spacers in the lifters work successfully and will the top end oil well.
Are the roller rockers still available.
Also bottom end would cry treating and l19 studs be enough or should I start working on a girdle/ and if girdle then steel main caps with a steel plate like EPR or just a full skirt girdle like Buick v6 uses to tie the sides in.
Not much info exists on imsa girdles and I have no pictures of any would you guys have any or have any of you made girdles.
Initially I was going to do a Buick v6 alas that girdled could handle 700hp but for drag not road race that needs the 4000 dollar block.
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