Hey guys about to finish my build.
Just wanted to know which hotside is better
Car will make about 550whp and will be used for drag and street

 

my parts are as follows

Wiseco pistons 85mm
Eagle H beam rods
Cometic head gasket
Acl race bearings
OEM 4G64 crank
ARP main and head studs
Supertech black nitrates 1mm+ intake and exhaust valves
Supertech valve guides
Supertech valve stem seals
Gates timing belt kit
Oem water and oil pump
GSC S2 cams
Fidanza adjustable cam gear pulleys
Gsc race balance shaft
Kiggly springs and retainers
Walboro 400LPH e85 fuel pump
Aem fuel pressure regulator
Sparkteck non cdi ignition
Id 2200cc injectors
Exedy twin HD clutch kit
Act monoloc
Exedy throw out bearing
Tial 50mm BOV
torque solution front and rear engine mount
nrg engine torque dampner
omni power 4 bar map sensor

head has been ported and flowed

 

You'll probably be getting the same answer I gave you in the PMs. You can always buy both turbine housings and see which you like more but the difference will most likely be unnoticed on the street.

 

I don't know the answer but if you get a .63 we can compare to my .82. I was considering a swap. At 550 I don't think the .63 will hurt anything. But then again a 5858 and .63 would be a better overall powerband. I would buy a smaller turbo than a 6262 if 550 is the max power you want.

 

He told me 650whp when he PMd me last week but if it is 550whp, a PTE 5857 or 5858 with E85 and the 2.3L is a winning combo. Huge powerband and a lot of torque, Mike from AWD was telling me how amazing that setup was a few years ago.

 

I have already got the turbo with 2 hotsides from a buddy for a sweet price. Thats the only reason I took it over the 5858

 

.82

 

After checking some logs, with my FS635 turbo w/ .82a/r, I'm hitting 26.6psi at 4970rpm consistently. But I'm on pump gas, a rough tune with very little timing which doesn't help spool but much higher lift cams which do help. Even though you have a larger turbine wheel, your head work and E85 should kill the spool on mine.

 

For under 600whp I would go with the smaller .63 hot side

 

Personally I'd go with the .82. IMO on a turbo that size why choke it up with a smaller ar.