IHI RHB5 VF28, on b20b, in DA
08-26-2007, 12:19 PM
#11
3.0 BAR
Join Date: Apr 2005
Posts: 4,890
Re: IHI RHB5 VF28, on b20b, in DA
Originally Posted by Joseph Davis
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.
i've personally done the cam swap in 2 b20's i dont think it adds any more power it just kinda makes the top end a little better i guess but do i think its worth it ?? if you got ls cams sure throw em in but its not worth purchasing.......
the problem with most people is they put in a b20 then try reving to 7k and wonder why there car dosent pull. well max hp is a 5400 rpm and over revving that motor makes it fall on its face.
i never understood why peole do this swap take out your 140hp ls to put in a 126 hp b20 seems dumb to me
08-26-2007, 12:40 PM
#12
0.5 BAR
Join Date: Oct 2006
Posts: 52
Re: IHI RHB5 VF28, on b20b, in DA
Originally Posted by bitchasscracker
i've personally done the cam swap in 2 b20's i dont think it adds any more power it just kinda makes the top end a little better i guess but do i think its worth it ?? if you got ls cams sure throw em in but its not worth purchasing.......
the problem with most people is they put in a b20 then try reving to 7k and wonder why there car dosent pull. well max hp is a 5400 rpm and over revving that motor makes it fall on its face.
i never understood why peole do this swap take out your 140hp ls to put in a 126 hp b20 seems dumb to me
agreed
08-26-2007, 01:22 PM
#13
3.0 BAR
Join Date: Feb 2004
Posts: 7,785
Re: IHI RHB5 VF28, on b20b, in DA
Sell the whole setup. Cause you'll have to mod the manifold to work with your B20 or make a manifold to use that retard IHI flange. Then come time to upgrade to a real turbo, your stuck with a manifold that can only use that flange. Yeah you can upgrade to a STI turbo or go with something aftermarket that uses a IHI flange. Overall just mod the manifold and use the whole setup or sell the whole thing. It would be a sweet street setup as boost would hit like yesterday and alway at tap. I say use since you got it already.
08-26-2007, 01:38 PM
#14
1.0 BAR
Join Date: Dec 2002
Posts: 604
Re: IHI RHB5 VF28, on b20b, in DA
Originally Posted by bitchasscracker
i never understood why peole do this swap take out your 140hp ls to put in a 126 hp b20 seems dumb to me
as far as the difference in cams goes the smaller b20 cams are what make those engines so useless over 6k. JD have you actually measured the difference in the cams? i have and the intake cams have less than 9mm lift on the intake side (b18b have 10mm gsr have 10.5, ctr have like 10.9 i think). b18a vs b18b vs b20z there all basically the same who cares but b20b cams suck bawlz plain and simple.
i agree on the whole sell the setup idea, i would at least opt for a t3 60 off a GN, SVO or supra. at least then your working with t3 flanges so upgrading is easier.
08-26-2007, 02:29 PM
#16
0.0 BAR
Join Date: Feb 2003
Posts: 0
Re: IHI RHB5 VF28, on b20b, in DA
Originally Posted by Jcushing
JD have you actually measured the difference in the cams?
08-27-2007, 07:18 PM
#17
0.0 BAR
Thread Starter
Join Date: Aug 2007
Posts: 36
Re: IHI RHB5 VF28, on b20b, in DA
i plan on swapping an LS head with port work, crower valve train ect.., the b20 was cheap,and fresh, High Comp b20's have great power but are harder to find, my LS poped, and I didn't want to throw another shitty high millage ls, the b20 def has more low end tourqe, but definalty lacks top end, I"M NOT BUILDING A RACE CAR, I wan't a really fun daily driver that I can get great RESPONSE out of for autocross, and ocasional drag racing, if it runs 14.0-13highs i'll be happy the key is cheap, i have a 2.25 exhaust resonator (no cat) my car is obd1 so it should be easy to tune, I plan on running 450cc dsm's, a healthy sized FMIC, 2.25-2.5 in charge piping, FUN RESPONSE, I'm also building an FC with a small block chevy swap, so i just want a fun street car on the side
08-27-2007, 10:33 PM
#19
3.0 BAR
Join Date: Apr 2005
Posts: 4,890
Re: IHI RHB5 VF28, on b20b, in DA
i could be wrong but isnt that a old school legacy turbo i got the vf28510 and its ------- dinky it falls on its face on my sohc so your b20 will not like it at all max boost at idle then fall on its face at 3500
