503_EF9

im new to the world of boost and so any mistakes and errors in my speaking please feel free to correct.
first a little on my setup
setup is as follows.
d16z6 bone stock internals low miles
y7 or 8 throttle body and intake mani
rc 550 injectors
tubular manifold
54 trim ebay turbo
custom 3 inch to the back
tial wastegate and ebay bov
ive been running 6 pounds because i dont have a boost controller yet.

this setup minus the tial wastegate and with a smaller frontmount made 180 by 180 on 9 lbs at vip performace on what i was told was a moderate tune for fuel economy ect.. that brings up my first question
with this tune the powerband is good until it makes peak power at 4900 it then starts to fall on its face instantly and definatly leaves something to be desired when driving it, i asked the tuner andhe said it was the size of my engine although his oppinion and tuning skills are questionable at best in my oppinion. i was hoping for some oppinions or ways to fix this problem?

secondly i want to expand on this engine and do a budget vitara setup and get it retuned on e85 i already have a smaller garret because the lag on this ebay turbo thats to big is horrible.. what would i need to make this a well rounded setup and how much am i looking for price i was told ls rods would work?

also is this platform worth my time i noticed most people are on y7/y8 setups to make good power is this a must ive been told my engine handles boost well because of the roller rocker head and girdled block.

any help is much appreciated and like i said im a boost noob so please dont flame to bad if i [freak]ed up somewhere.

503_EF9

anyone?

503_EF9

bump for help

thatblkguy

Get a new tuner and also whats your ems?

post your dyno sheet.

503_EF9

ight ill get dyno sheets up tomorow. its tuned on crome

jarvis199

what are your goals for the setup?

503_EF9

with the vitara setup im hoping for mid to hi 200s on e85 with a good powerband i think thats not crazy theres a kid tj around here (forged performance) who does amazing stuff with e85 and boost.

sohczcturbo

There's more to be tuned from it. You can hit 200 pretty easy on that setup, just get a boost controller and a GOOD tune, not one where they half *** it after 4900rpm.

503_EF9

so you think it is the tune then? im thinkin i might just leave the setup as is buy an lsd and switch to e85
oh and by the way i switched to the tial today from ebay and my car doesnt sound like a [freak]in hurricane when i hit 7 pounds anymore hahaha

BiggieBert

I made like 265whp on my vitara z6 on pump(93) I would def look into another tuner.

503_EF9

not bad hows the powerband?

1.5Slowmatic

def. get a new tuner, theres way more to be had from that setup, but with the vitaras you can easily go over 300 on E85, mid 250s will be a walk in the park.

SovXietday

Well 180 on 6lbs isn't really that bad for an SOHC. Do you know what AR that turbo is?

You can make high 200s with what you have pretty easily, probably even without the E85. Just be careful, stock Dseries rods don't like a lot of power.

BiggieBert

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SovXietday &raquo;</TD></TR><TR><TD CLASS="quote"> Just be careful, stock Dseries rods don't like a lot of power.

</TD></TR></TABLE>

I think they can handle just over 200 safeley with a good tune, unless u have thousands of dollars to spend on tuning. and can tune ever other week.

Does anyone how what happened to the sohc pushing over 300 with stock bottom end? I remember a topic here on HT about it but havn't heard or seen anything in awhile.

503_EF9

well good, i always like to shoot low so im stoked rather then dissapointed. and theres an e85 station right next to my house like i said the tuner at english racing is a god with it im definatly gunna go that route and see what i can do ill let you gus know how it goes.
300 on a stock bottom end? thats nuts...

503_EF9

oh and the turbo thats on there is an ar .50 trim. im switching to a smaller garret before i go get retuned.
also my current turbo pools a bit of oil up and causes smoke out the back the first few times i boost on it... no shaft play, is that a bad seal im runnings a straight oil feed off the back of the block is it simply to much oil pressure through to big of a line? i was told a reducer would fix this.

SovXietday

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BiggieBert &raquo;</TD></TR><TR><TD CLASS="quote">I think they can handle just over 200 safeley with a good tune, unless u have thousands of dollars to spend on tuning. and can tune ever other week.

Does anyone how what happened to the sohc pushing over 300 with stock bottom end? I remember a topic here on HT about it but havn't heard or seen anything in awhile.</TD></TR></TABLE>

I made 217whp on 8psi for over a year on a stock Y8. But I'm talking about his high 200s goal, 250 is about the "safe" max. You can push more but you're on borrowed time.

The 375whp car you're thinking of is now a Vitara block. They bent all 4 rods.

SovXietday

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 503_EF9 &raquo;</TD></TR><TR><TD CLASS="quote">oh and the turbo thats on there is an ar .50 trim. im switching to a smaller garret before i go get retuned.
also my current turbo pools a bit of oil up and causes smoke out the back the first few times i boost on it... no shaft play, is that a bad seal im runnings a straight oil feed off the back of the block is it simply to much oil pressure through to big of a line? i was told a reducer would fix this.</TD></TR></TABLE>

Those ebay turbos are NOTORIOUS for blowing seals. Restrictors are a must for them. I run an ATP turbo .060 restrictor after replacing the seals in my Garrett 57trim. I blew them out with a straight 3AN line pretty much as soon as I switched over to my Z6 with ported oil pump etc, lol. The ebay turbos are way more fragile than the Garretts, so def get one.

503_EF9

ill definatly pick one up before i intall that garret and get retuned.

this may be a question but im wondering if i could get into trouble putting that smaller turbo on before i get retuned even if a baby it. the way i see it witht he current mapping, spool faster run lean and boom? correct?

SovXietday

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 503_EF9 &raquo;</TD></TR><TR><TD CLASS="quote">ill definatly pick one up before i intall that garret and get retuned.

this may be a question but im wondering if i could get into trouble putting that smaller turbo on before i get retuned even if a baby it. the way i see it witht he current mapping, spool faster run lean and boom? correct?</TD></TR></TABLE>

Eh, it's a possibility but because of the way the columns are in the software and how most columns are generally pretty even fuel wise I wouldn't really worry about driving it normal hitting a few psi of boost every now and then. Just don't WOT all over the place and you'll be ok.

503_EF9

Haha well that makes me a bit nervous cus I can't help but get on her every now and then and I can't afford a new engine but I'm pretty sick of that fat lag so I think ima go for it and hope for the best? Tune it in the next week and I should be fine? Anyone wanna give me some more reassurance?

Also another noob turbo question how far over should the heat soak go on my front mount after hard driving

Thanks for the help guys.