scUba-stEve

i'm building a turbo z6 motor and was wondering if 10.5:1 would be too much...i'll be running the t3/t04b turbo with .63 a/r...the car will be driven alot, but i will have two boost settings...looking to boost maximum of 20psi...j/w if this is too much compression for a turbo d16z6.

evosol

for 20 psi? let me guess your still deciding if your gonna run AEM or Hondata right?

scUba-stEve

no...i'm gonna run hondata.

mrx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zer0-psi &raquo;</TD></TR><TR><TD CLASS="quote">no...i'm gonna run hondata.</TD></TR></TABLE>

Sorry but i think you wouldn't find any normal gasoline that can handle 20psi on a 10:1 CR engine without knock... forget it...

run 9:1 and Racegas... maybe on a B-Series engine but on a D16 ;-) i don't think that this will hold very long...

kabaroo

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

run 9:1 and Racegas... maybe on a B-Series engine but on a D16 ;-) i don't think that this will hold very long...</TD></TR></TABLE>

whats your reasoning behind this?

Chip

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

Sorry but i think you wouldn't find any normal gasoline that can handle 20psi on a 10:1 CR engine without knock... forget it...

run 9:1 and Racegas... maybe on a B-Series engine but on a D16 ;-) i don't think that this will hold very long...</TD></TR></TABLE>

Hybrid901 ran 26+ PSI on C16 gas with a 10.5:1 motor.

How the hell do you figure a 10:1 motor couldn't run 20 pounds of boost on gas, that's just absurd. That being said, I would run a lower compression ratio like 9:1-9.5:1 tops for a street motor. Only being able to boost 12-13 PSI on pump gas gets old after a while and you want more power.

DaZman69

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

Sorry but i think you wouldn't find any normal gasoline that can handle 20psi on a 10:1 CR engine without knock... forget it...

run 9:1 and Racegas... maybe on a B-Series engine but on a D16 ;-) i don't think that this will hold very long...</TD></TR></TABLE>

idiot

u'll be fine

ever heard of neptune? i would recommend that over hondata. Because you can have a pump gas tune and a race gas tune on 1 chip. You could have ultra conservative timing on the street.

scUba-stEve

i've heard of neptune, but i already have hondata so i'll be using that...i guess i'll run like 9.5:1 or something...thanks for the replies.

liam821

You can run 10.5:1 compression and turbo on pump gas just fine - you just wont beable to run as much boost as say a lower compression motor.

There is lots of high compression turbo hondas out there....

liam

scUba-stEve

would this manifold be good? any reviews on sidewinders for d-series?

liam821

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zer0-psi &raquo;</TD></TR><TR><TD CLASS="quote">

would this manifold be good? any reviews on sidewinders for d-series?</TD></TR></TABLE>

whoa there nelly! Thats my old manifold! It worked good, made good power, it liked to bake the engine bay (put out alot of heat), and doing the piping/exhaust was a bitch.

I still made 400hp with that thing though.

liam

mrx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chip &raquo;</TD></TR><TR><TD CLASS="quote">Hybrid901 ran 26+ PSI on C16 gas with a 10.5:1 motor.

How the hell do you figure a 10:1 motor couldn't run 20 pounds of boost on gas, that's just absurd. That being said, I would run a lower compression ratio like 9:1-9.5:1 tops for a street motor. Only being able to boost 12-13 PSI on pump gas gets old after a while and you want more power.</TD></TR></TABLE>

Yes, look what you wrote... C16, what is C16?! Race gas... no Pump gas... 20psi on i.e. 94 Octane with 10.5:1 isn't realy a good idea in my eyes... but do what you want... it isn't my motor... even with neptune or what else... you can't break physical laws...

mrx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kabaroo &raquo;</TD></TR><TR><TD CLASS="quote">whats your reasoning behind this?</TD></TR></TABLE>

i think 9:1 is a better compromise when you plan on running a lot of boost... thats everything... not that 10:1 is impossible but for reliability...

Chip

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

Yes, look what you wrote... C16, what is C16?! Race gas... no Pump gas... 20psi on i.e. 94 Octane with 10.5:1 isn't realy a good idea in my eyes... but do what you want... it isn't my motor... even with neptune or what else... you can't break physical laws...</TD></TR></TABLE>

Unless he's stupid I have the funniest feeling he's talking about low boost for pump gas and 20 psi for race gas.

But, you know, that's reading comprehension for you.

kabaroo

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

i think 9:1 is a better compromise when you plan on running a lot of boost... thats everything... not that 10:1 is impossible but for reliability...</TD></TR></TABLE>

I was questioning why a D series couldnt handle 20psi and a b series could handle it better?

or did i read that wrong.


Modified by kabaroo at 11:24 PM 7/2/2005

92sireg

running high comp and boost isnt a reliablity problem its a tuning problem there is jsut more room for error that is why factory turbo cars come with lower comp they less tuning basically. i would prob jsut run 9:1 as said by mrx it jsut leaves more room for error when tuning.