12.1 c/r good for turbo

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04-24-2005, 10:30 AM

lsvtec90

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12.1 c/r good for turbo

i try searching but cant find it or not sure what to look for. wanting to go turbo with my lsv w/ 12.1-1 c/r. is it safe to go boost that high. everything is pretty much stock oem parts. what will i need to do to go boost like my timing, and what to control the turbo?

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04-24-2005, 10:34 AM

J337_UNIT

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Re: 12.1 c/r good for turbo (lsvtec90)

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04-24-2005, 12:03 PM

02viclx

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Re: 12.1 c/r good for turbo (J337_UNIT)

its ganna be a bitch to tune at 12.1:1

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04-24-2005, 02:26 PM

StolenTeg

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Re: 12.1 c/r good for turbo (02viclx)

It already hard tuning 12:1 all motor using 93 oct, let alone tuning 12:1 with boost

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04-24-2005, 04:13 PM

Tony the Tiger

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What's the highest octane pump gas available in your area? You don't want to run race gas everyday

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04-24-2005, 05:19 PM

lsvtec90

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Re: (Tony the Tiger)

90 octane and i was thinking that if i could use a vafc to tune it for now until i save up to get a better fuel mangement system. iwas thinking that if it is possible i will run about 7 to 9 psi for a while.

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04-24-2005, 05:26 PM

StolenTeg

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Re: (lsvtec90)

What of piston do you have in your motor and there no way your gonna be safe running on 90 octance and afc

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04-24-2005, 05:50 PM

b16sedan

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Re: (lsvtec90)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lsvtec90 »</TD></TR><TR><TD CLASS="quote">90 octane and i was thinking that if i could use a vafc to tune it for now until i save up to get a better fuel mangement system. iwas thinking that if it is possible i will run about 7 to 9 psi for a while.</TD></TR></TABLE>

NO, do not run a VAFC at any amount of boost. Don't run a VAFC @ 12:1 compression PERIOD. 9 psi on 12:1 compression with a VAFC and your motor will be in pieces the first time you hit boost, end of story. You can't pull any timing with a VAFC, and that's what you need to keep your motor from destroying itself.

Hell, I wouldn't feel comfortable running a 12:1 motor naturally aspirated on 90 octane. Get lower compression pistons before you try anything.

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04-24-2005, 07:12 PM

m R g S r

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Re: (lsvtec90)

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04-24-2005, 07:29 PM

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-iLLuZioN-B18C1

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Re: (lsvtec90)

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04-24-2005, 10:09 PM

#11

lsvtec90

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Re: (m R g S r)

that is why im here asking you guys for help n e ways thinks for the help maybe ill try something else

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04-24-2005, 10:17 PM

#12

hondaeg8

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Re: (lsvtec90)

what is a good compression to run boost.... what is the highest compression to run it.

i think the 12 range is kinda high for boost.

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04-25-2005, 01:27 PM

#13

Tony the Tiger

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Re: (hondaeg8)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaeg8 »</TD></TR><TR><TD CLASS="quote">what is a good compression to run boost.... what is the highest compression to run it.

i think the 12 range is kinda high for boost.
</TD></TR></TABLE>

You really have a lot to learn. How did you end up with your current motor anyways? 12.1:1 is already high enough compression for an NA setup with 90 oct. That thing can probably blow up without the boost

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04-25-2005, 03:32 PM

#14

-iLLuZioN-B18C1

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Re: 12.1 c/r good for turbo (lsvtec90)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lsvtec90 »</TD></TR><TR><TD CLASS="quote">i try searching but cant find it or not sure what to look for. wanting to go turbo with my lsv w/ 12.1-1 c/r. is it safe to go boost that high. everything is pretty much stock oem parts. what will i need to do to go boost like my timing, and what to control the turbo?</TD></TR></TABLE>

to get you started there are a few things you can do.

do it right and buy new pistons w/ lower CR around 9.1-9.7 IMO
or the cheaper way and just buy a thicker headgasket.

dont waste your money on vafc and just go ahead and get hondata,uberdata ect

once you have it complete run the highest octane you state has

other than that you will need your basic turbo kit(ie turbo, wastegate,blowoff valve, eshaust manifold,ic and piping)
racing clutch
550cc injectors are a good start

those are pretty much your basics
i might be missing something...

then get it tuned right

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04-25-2005, 08:35 PM

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lsvtec90

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Re: 12.1 c/r good for turbo (-iLLuZioN-B18C1)

thanks for the hints or help everyone maybe ill start with the bottom and lower the c/r

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04-25-2005, 08:41 PM

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Cramerox

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Re: 12.1 c/r good for turbo (lsvtec90)

I would just like to add that it is possible to run 12:1 it may not be the kind of car you want to drive everyday- maybe a track car.

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04-25-2005, 09:30 PM

#17

-iLLuZioN-B18C1

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Re: 12.1 c/r good for turbo (Cramerox)

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04-25-2005, 11:18 PM

#18

Tony the Tiger

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Re: 12.1 c/r good for turbo (Cramerox)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cramerox »</TD></TR><TR><TD CLASS="quote">I would just like to add that it is possible to run 12:1 it may not be the kind of car you want to drive everyday- maybe a track car.</TD></TR></TABLE>

Hell you can make the car run at 13:1 with a VAFC if you wanted to, but it will never run well. I bet we all could spin that dizzy to full retard and yay, the engine will run. It would just be slower than stock...

VAFC and 12:1 = suicide (for the motor) No timing control with high compression, what are you thinking? hah

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