IHI RHB5 VF28, on b20b, in DA
 

I just traded a kid my wings west kit off my rex for and IHI RHB5 VF28 off a wrx, with a cheap BOV, feed, and return lines, a boost gauge, an HF manifold with an adaptor flange

My question is minus the manifold (obviously) is this a good starting point for a first time turbo setup, it is the low compression B20B i just put in My DA, went to the track last night and was running a shitty 15.6, but it was also very hot out (90+) it should run 15.5-4 I also have an MSD cap, and ex coil and a B&M fuel pressure reg, and gauge, and a strong clutch, gutted AC, ect

I want to run 13's, MID and have about 190 WHP, the turbo is in good shape, No shaft play at all, but one of the blades has a small chip in it, and the turbo exhaust flange has a piece missing where it bolts to the manifold (the cast broke cause some jack ass tightened it to much)

should i keep the turbo and build off of it or sell it to someone with a ZC swap with the manifold and get a fresh T3?

the turbo...http://i96.photobucket.com/albums/l1...r07/car011.jpg

before the B20 and MSD
Attachment 24733

thanks guys!

Re: IHI RHB5 VF28, on b20b, in DA
 

anybody? is this a good setup?

Re: IHI RHB5 VF28, on b20b, in DA
 

10lbs on that thing might get you 200hp, but its a really tiny compressor. stock ej20's push 14lbs and only make 227 at the crank. ive seen lightly larger turbos make 200hp very easily at 6psi on b20's.

Re: IHI RHB5 VF28, on b20b, in DA
 

may be 2 small for b20 ??? was quick spool on my d16 with stock exhaust ran out of breath on me high rpm but that was the rhb5 off the probe

Re: IHI RHB5 VF28, on b20b, in DA
 

you might want to have the feed on top and the drain on bottom......




what is your the whole number on the compressor housing ? how many bolt down pipe does it have ?

Re: IHI RHB5 VF28, on b20b, in DA
 

That is as much a reflection on the EJ20's ability to drink intake charge as it is the turbo.

Re: IHI RHB5 VF28, on b20b, in DA
 

low compression b20s dont make a ton of power either ;)

Re: IHI RHB5 VF28, on b20b, in DA
 

Sure they do, don't listen to V-Tech hype. It would break 200 whp at or around 7-8 psi, stock engine and IM with 2.5" charge pipe and exhaust.

I really should drag out the Greddy SOHC kitted LS that made 181 whp and 200 wtq at 5.5 psi to illustrate my point.

Re: IHI RHB5 VF28, on b20b, in DA
 

i wasnt kidding when i said my buddies LS also made 200 on 6 psi and almost 220 on 7

my point was only that those numbers arent overly high. the non vtecs largest shortcoming is its cam and the low CR b20 has a cam so small it makes stock b18b cams look like a hot set of regrinds

id think youd know JD that id be the last one to be a vtec nutswinger ;)

Re: IHI RHB5 VF28, on b20b, in DA
 

People who compare LS cams across the years generally lack a clue, IMO. Have you ever swapped the "worst" cam for the "best" one? Not worth the effort, the difference is -----all.