blinx9900

my first setup was a 10.8CR turbo b16b, it was great, had 7 and 10psi from t3/04e at 3800rpm and tons of wheel spin at 10psi in 1st gear (7psi had no wheel spin at all), pretty fast and torquey, VERY responsive.

i built a somewhat odd set up lately after the hich CR motor blew up, here is the set up:

b16a shortblock bored to 81.5mm
pr4 LS pistons
cometic HG .041"
stock rods
acl bearings
compression ratio 8.3:1

the rest of the stuff is from the old setup, type r head, t3/t04e ball bearing, Meutek manifold, 3" dp and exhuast 750cc injectors, aem ems.

boost comes on about 500rpm later, the car has almost no power off boost, i find myself driving at about 1-2psi just to get from 1 light to the next. car feels like CRAP at 7psi, 11 is MUCH better, 14psi even better and its sweet spot so far and best run imo was at 16psi with knock spiking at no more than 1.4volts a/f at 12.4-11.8 and ign at 28-24degrees. im keeping it at 11psi right now cause i am having some smoke out of the exhaust on decelaration, not sure if its bad valve guide seals or oil in the muffler section from when the motor blew up last time (i drove home on 3 cyl and went through 7quarts of oil!)

i really like the 8.3CR set up, its a bit laggy but even at 16psi i have NO wheelspin and car really moves, though i miss the responsiveness i dont mind loosing it and gaining traction. next time i build a motor i might go to 9.5CR, that should be a happy medium.

so far the motor likes a lot of boost, a lot of timing, and a lean A/F we ran it at 26psi on 91 octane and knock was still below 2 volts and the 2 volt spikes looked like noise cause i had violent wheelspin and hit the rev limiter so it popped pretty loud.

both set ups were on 91octane, nitto nt01 tires with 15x7 wheels on a 2300lb civic hatch with 250/250 spring rates and koni shocks set 3/4 stiff.

long story short, im pretty happy with this, i just want the damn thing to stop smoking on decel, and for some reason after the car gets hot like 240degrees (water) it wont start back up until it cools down... but yeah, so far so good

blinx9900

wow, nobody cares... oh well, quick update, i ran today at 18psi and still no knock, but damn it just dosent feel good for some reason...

anyways, im guessing its just not that amazing cause its such a low CR and its still a 1.6 next build 1.8 or 2.0 for sure!!


Modified by blinx9900 at 2:25 AM 11/4/2007

ghostofnyc

iTrader: (3)

9.0:1 - 9.5:1 is good for street honda cars

Drew Peacock

Get it tuned on a dyno by someone who knows what there doing.

tony413

im getting ready to buy some 8.7:1 wiseco pistons because i want a little more boost and gas prices here are around $3.21 for 93 and $3.11 for 91. anyways i figure once the block gets sleeved the deck will be lightly milled so that will raise compression SOME.

blinx9900

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Drew Peacock &raquo;</TD></TR><TR><TD CLASS="quote">Get it tuned on a dyno by someone who knows what there doing. </TD></TR></TABLE>

what makes you think my current tuner isnt competent enough?




Modified by blinx9900 at 2:25 AM 11/4/2007

93supercoupe

what feels different?///////Is it just not a strong out of boost, or is it the whole graph?

blinx9900

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93supercoupe &raquo;</TD></TR><TR><TD CLASS="quote">what feels different?///////Is it just not a strong out of boost, or is it the whole graph?</TD></TR></TABLE>

i guess with the high cr set up the transition into boost was fast, almost violent! i had lots of tq steer and wheel spin in 1st and to the top of 3rd if i launched hard with nitto nt01. this low cr set up has a very smooth transition into boost, almost no tq steer even at 20psi and i still have first gear which is great, and makes the car easier to drive.

Drew Peacock

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">

what makes you think my current tuner isnt competent enough?


Modified by blinx9900 at 2:25 AM 11/4/2007</TD></TR></TABLE> Well the fact it blew in the first place. And it doesn't sound to healthy at the moment from what your saying. Goodluck.

blinx9900

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Drew Peacock &raquo;</TD></TR><TR><TD CLASS="quote"> Well the fact it blew in the first place. And it doesn't sound to healthy at the moment from what your saying. Goodluck.</TD></TR></TABLE>

it was my fault the motor blew, i misshifted and revved to high hell

update, think i may have figured out the problem, IAT's are 135 when its 60 outside, i guess my little 6" intercooler cant handle what im throwing at it, picked up a much larger core today, hopefully that does the trick

blinx9900

ok, i put the new IC on today, MAJOR difference!! the car is great now and iat's stay low... problem solved

dpetro1

did you solve the overheating problem cause 240* water temps are way up there.

blinx9900

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dpetro1 &raquo;</TD></TR><TR><TD CLASS="quote">did you solve the overheating problem cause 240* water temps are way up there.</TD></TR></TABLE>

yup, the larger intercooler dropped my water temp to 225 and i found a small coolant leak i still havent fixed, im hoping the temp goes down even more once the leak is fixed

0morgan@synapse motorsport

225 is still too high. hopefully fixing that leak helps.

blinx9900

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike@synapse motorsport &raquo;</TD></TR><TR><TD CLASS="quote">225 is still too high. hopefully fixing that leak helps.</TD></TR></TABLE>

really? whats normal? my tuner likes to give a lot of timing, he gives it 20degrees timing up top and 12.0 a/f up top... maybe thats why? i fixed the leak, its still 225ish, godspeed rad, 900cfm spal fan...

0morgan@synapse motorsport

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">

really? whats normal? my tuner likes to give a lot of timing, he gives it 20degrees timing up top and 12.0 a/f up top... maybe thats why? i fixed the leak, its still 225ish, godspeed rad, 900cfm spal fan...</TD></TR></TABLE>

are your temps 225 when you are driving around normal, at full boost, or at idle?

alpha

IMO, 225F is too hot either way. Every healthy Honda/Mitsubishi/Subaru/Toyota/Nissan we have tuned ran from 190F to 212F. What color is the smoke on decel, white? Cars above that had bad head gaskets, sunk sleeves, misc problems, etc.

0morgan@synapse motorsport

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by alpha &raquo;</TD></TR><TR><TD CLASS="quote">IMO, 225F is too hot either way. Every healthy Honda/Mitsubishi/Subaru/Toyota/Nissan we have tuned ran from 190F to 212F. What color is the smoke on decel, white? Cars above that had bad head gaskets, sunk sleeves, misc problems, etc.</TD></TR></TABLE>

definately bad either way. but depending on if its happening under boost, or at idle might give a little insight as to where the issue may lie. more than likely its not the cooling system

alpha

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

definately bad either way. but depending on if its happening under boost, or at idle might give a little insight as to where the issue may lie. more than likely its not the cooling system</TD></TR></TABLE>

I agree

blinx9900

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

are your temps 225 when you are driving around normal, at full boost, or at idle?</TD></TR></TABLE>

if i let it idle for a while like 6minutes it will reach 220ish when i drive it hard it goes to 225. i tried to test it out yesterday, but it was a pretty cold day.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by alpha &raquo;</TD></TR><TR><TD CLASS="quote">What color is the smoke on decel, white?</TD></TR></TABLE>
its usually night time so i cant tell, but i think its oil cause i can see the residue in the muffler tip.


also i may have failed to add this motor has less than a 100miles on it. i dont know if thats imortant or not. thanks for the help to both of you.