Will a sc61 turbo lag to much on a fully built 2.0 gsr motor.

 

its all opinion, some consider anything after 5k too much lag, maybe you consider anything after 3k too much lag. a better question (tho there are still so many variables) is what rpm do you think an sc61 will make Xpsi at with a 2.0 GSR.

Marcus

 

It depends on your goals and what you plan to use the car for. The SC61 isn't a bad turbo if you're looking for 500ish whp and can stand the lag that accompanies that kind of power. IMO, it wouldnt be a bad turbo given your setup

 

Trying hit boost by 5k.Plus Im gonna run a b16 head with a valvetrain,My goal is probly around 450 or so with ls rods and crank.

 

83mm b18c5 here and my sc6152e with inline pro manifold starts building boost around 4k and hits 18-20psi at around 5200. And compared to the smaller t3/t4 I had before (which hit full boost by 4k) the sc61 hits much harder once past 14 psi or so . If youre only using it for less than 12 psi I think you will be happier with a smaller turbo. But with a built block and 450+whp expectations the sc61 works very well.

 

So you want a max of 450whp?? IS that on pump gas or race gas? There are a lot of turbos that would fit your need eepending on which fuel you plan to run

 

my old sc61 hit full boost a little before 6k if i remember. but who cares turbo lag is overrated

 

you also need to consider what your going to be reving to. I had a SC61 on my stock LS motor I hit 14 psi around 5200 which only gave me about 2300rpm's in boost. plus if your not going to be running like 18psi or over its no use going that big cause the turbo doesnt get to see its full potential. when I would run about 22-24 psi through it that thing really came alive.

 

my buddy has a sc61 on a bored/sleeved b20 vtec and he hits full boost around 4800. it should not be called turbo lag, more appropriate name is foreplay.

 

damn guys.... i spool my SC61 up at 1 bar by 2930rpm in 3rd gear, i know i aint running a b-series, ive got an H..... i just thought the B would not be that far behind

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cjordan &raquo;</TD></TR><TR><TD CLASS="quote">it should not be called turbo lag, more appropriate name is foreplay.</TD></TR></TABLE>

sig worthy

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by akira712 &raquo;</TD></TR><TR><TD CLASS="quote">

sig worthy </TD></TR></TABLE>
X2

 

heres my b16,84.5mm,9:1,sc6152e

 

i bought it off of bart and am using it on my sohc. full boost 5.5k pulls hard till 8.5. i dynod at 330 on 15lbs. i love it if my sohc can handle it im sure you can

 

turbo lag is so overrated, if u want to go fast u got to go big, just downshift and u will forget about lag, when it hits

 

personally I think the sc61 is just fine; I only boost when I need to..lol.

 

depends what u consider lag but since the sc61 has proven multiple positive setups on 450-550hp setups. christmas just past go treat yourself to a gt30r in my opinion

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dc2____R &raquo;</TD></TR><TR><TD CLASS="quote">depends what u consider lag but since the sc61 has proven multiple positive setups on 450-550hp setups. christmas just past go treat yourself to a gt30r in my opinion </TD></TR></TABLE>
might as well use a 35r

 

well keep in mind that this setup is a 1.8 and a .63 gt30r http://forums.evans-tuning.com...=4554 imagine what his 2.0 would be like

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Schister66 &raquo;</TD></TR><TR><TD CLASS="quote">So you want a max of 450whp?? IS that on pump gas or race gas? There are a lot of turbos that would fit your need eepending on which fuel you plan to run</TD></TR></TABLE>

Im probly gonna run pump gas,and red line at sum where around 8000 k on a Benson block .

 

the sc61 should be good for your setup.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hyabusa hunter &raquo;</TD></TR><TR><TD CLASS="quote">damn guys.... i spool my SC61 up at 1 bar by 2930rpm in 3rd gear, i know i aint running a b-series, ive got an H..... i just thought the B would not be that far behind</TD></TR></TABLE>

No, H-series spool the hell out of what B-series guys consider laggy turbos. They make a lot more power in the midrange, and where there's power there is exhaust flow to spool a turbo with.

 

there will be no lag.
unless you want full boost at 1000 rpm

any ways, I used precision sc61 on a 1.6l b16 full boost at 4500 rpm 9.0.1 compression
sc61 on 1.8l lsvtec full boost at 4200rpm 9.0.1 comression.
now 2.0 l ls/vtec new motor not broken in yet, I am having a hard time keeping it out of boost, my rpm rises quick as hell, and this turbo sees boost 2300 rpm on 8.8.1 compression. dont know when it will hit full boost, because I just fu=inished the motor and plan to break it in properly.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rudebwoy &raquo;</TD></TR><TR><TD CLASS="quote">there will be no lag.
unless you want full boost at 1000 rpm

any ways, I used precision sc61 on a 1.6l b16 full boost at 4500 rpm 9.0.1 compression
sc61 on 1.8l lsvtec full boost at 4200rpm 9.0.1 comression.
now 2.0 l ls/vtec new motor not broken in yet, I am having a hard time keeping it out of boost, my rpm rises quick as hell, and this turbo sees boost 2300 rpm on 8.8.1 compression. dont know when it will hit full boost, because I just fu=inished the motor and plan to break it in properly.</TD></TR></TABLE>
^^^ break it in on the dyno.......Im running an sc61 on my stock GSR right now; i'll check and see when I get full boost

 

The last three dyno tunes I've done were fresh engines I got to break in. It's kind of nice knowing you can make sure the tune is right, and not have to pay attention to traffic. I normally spend 30-45 minutes doing part throttle to ~3-5 psi pulls and decels, pull the car off the dyno and chainge the oil, etc, then load it on and start going for power.