SFlCrx

well just picked up a y8 block last week from a friend and i just honed it and did some measuring. Anyways i wanted to do a nitrous build did some research but did not really find what i was looking for most of the search results where nitrous questions and noobish ****. i know how nitrous works and what is need for it to keep my engine safe.

heres my list of parts that i have or going to be getting

Engine- D16y8 block w/ D16z6 head in a crx

Forged pistons w/ rods (9.1 or 10.1 compression ratio pistons don't know yet taking suggestions)
crower stage 2 cam
vavle springs and titanium retaniers
y8 or skunk 2 manifold
adjustable FPR
all ARP hardware
100-125 zex wet kit
I/H/E
stage 2 clutch w/ lightweight flywheel
walbro 255 pump
colder plugs gapped at .028

looking for about 170-185 whp and 170 torque on the bottle and about 130-140 whp 120 torque off the bottle .

any suggestions is greatly apprieceated




Modified by SFlCrx at 5:41 PM 8/30/2006

northkai3

yes im am curious 2

85

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by northkai3 &raquo;</TD></TR><TR><TD CLASS="quote">yes im am curious 2</TD></TR></TABLE>

there was a post on here about a year ago with a guy running 200shot on an LS. funny thing was, he was running (if i remember correctly) either 11 or 12:1 CR. never had any probs. his outlook on it was that wail using so much N2O it cooled everything down to keep it from blowing up.

cubish

if you plan on making good power and taking advantage of running higher lift cams i would go higher on the compression. on street motor i run 11 to 1- 11.5 to 1 and over 14 to 1 on my race motors

SFlCrx

its not going to be a race car its going to be a weekend car What about my set up ? i did a lot of research, am i forgetting something or do guys think all the mods would work well. thanks

cubish

like i said.. on my street motors i run a little over 11 to 1 compression. youre cutting your self short running anything near 9 or 10 to 1. everything else seems pretty good. i'd get a nice header, b series throttle body, and a block gaurd

SFlCrx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hks85 &raquo;</TD></TR><TR><TD CLASS="quote">

there was a post on here about a year ago with a guy running 200shot on an LS. funny thing was, he was running (if i remember correctly) either 11 or 12:1 CR. never had any probs. his outlook on it was that wail using so much N2O it cooled everything down to keep it from blowing up. </TD></TR></TABLE>

i'm not worried about things melting, i'm worried about the nitrous shooting my compression ratio way too high for the engine thats why i was opting for a lower compression ratio piston. From my knowledge nitrous will up the compression right?

SFlCrx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cubish &raquo;</TD></TR><TR><TD CLASS="quote">like i said.. on my street motors i run a little over 11 to 1 compression. youre cutting your self short running anything near 9 or 10 to 1. everything else seems pretty good. i'd get a nice header, b series throttle body, and a block gaurd</TD></TR></TABLE>

Any suggestions for header and block gaurd? thinking Kteller for the header and 2 1/4 straights to apexi N1

SFlCrx

any more input?

quicksilver1689

Direct port, whats good for allmotor performance usually compliements nitrous very well. 10-11.5:1 compression is what i reccomend depending on fuel octane, timing, ect. Freeflowing intake, intake mani, and good header will help. You can get various jets too see what your motor likes. I think cubish could tell u more about it. Some motors like too run slightly fat on the fuel side some dont respond as well i think its just a trial and error kinda deal when it comes to the fuel and nitrous jet ratios. Good luck

cubish

the power levels you are looking for are very easy to get. figure if you can make anywhere from 120-140 all motor it wont take much to make over 200 on spray. stock b series motors with bolt ons usually make around 280-290 on spray after i tune them.. my built setups have made anywhere from 330-500 on spray. i think you could make around 220 or so safely on pump gas with what you have planned..

SFlCrx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by quicksilver1689 &raquo;</TD></TR><TR><TD CLASS="quote">Direct port, whats good for allmotor performance usually compliements nitrous very well. 10-11.5:1 compression is what i reccomend depending on fuel octane, timing, ect. Freeflowing intake, intake mani, and good header will help. You can get various jets too see what your motor likes. I think cubish could tell u more about it. Some motors like too run slightly fat on the fuel side some dont respond as well i think its just a trial and error kinda deal when it comes to the fuel and nitrous jet ratios. Good luck </TD></TR></TABLE>

Fuel will be 93 of course timming will 4 degree retarded for the nitrous. As for intakes AEM V2 and either y8 or skunk2 manifold. i keep the Air/fuel at around 11 to 1 on the bottle and 12.5 to 1 off the bottle with chrome

SFlCrx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cubish &raquo;</TD></TR><TR><TD CLASS="quote">the power levels you are looking for are very easy to get. figure if you can make anywhere from 120-140 all motor it wont take much to make over 200 on spray. stock b series motors with bolt ons usually make around 280-290 on spray after i tune them.. my built setups have made anywhere from 330-500 on spray. i think you could make around 220 or so safely on pump gas with what you have planned..</TD></TR></TABLE>

Thanks for the help and what do you recommend as far as block gaurds? do you think i will need one and any suggestions of where to get one?

cubish

i wouldnt rely on just the a/f ratio when tuning the nitrous.. nitrous tends to throw off the afr reading a lot of time..block gaurd wise you can use a golden eagle..str..race engineering..chm.. they all pretty much do the same thing.. should be around $100

SFlCrx

thanks alot. what cam do you use in your builds? oh yea hows the tropical storm i should be getting it soon up here in orlando

cubish

the storm was weak.. i usually run some pretty big cams..ive ran everything pretty much... ctr, skunk 2's and 3's.. buddy club 3's and 4's.. they all worked good for me..

SFlCrx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cubish &raquo;</TD></TR><TR><TD CLASS="quote">the storm was weak.. i usually run some pretty big cams..ive ran everything pretty much... ctr, skunk 2's and 3's.. buddy club 3's and 4's.. they all worked good for me..</TD></TR></TABLE>


oh yea i forgot you build b seris not d series just want to know if the crower stage 2 would be good people have been saying good things about the zex cam too don't know what i want yet