jrc weez00

i have a high mileage motor. around 150,00 on the bottom end.
this is wats done to it
t3/t4 turbo
2 and 1/4 exhuast all the way back no cat
the heads completly built, titanium retainers, skunk 2 vave splrings, aftermarket valves, port polished.
plugs and wires
turbosmart external waste gate
bov
fmic

right now im only running four psi of boost on this setup because im afraid to run any higher. i wanna go to 8 but im not sure if the car would run right with stock injectors fuel pump etc. would it run ok if i ran 8psi on a high mileage motor? and would it even run right with stock injectors? also if any one could estimate my whp? with this setup that would be great. im some what a noob when it comes to turbo charged vehicles this is my first.

Boosted Chemist

iTrader: (1)

With 1k or 300k miles, its not going to run long with stock injectors

jrc weez00

so u would recomend getting new injectors? 450cc dsm injectors will work right?

SOHCD16y8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boosted Chemist &raquo;</TD></TR><TR><TD CLASS="quote">With 1k or 300k miles, its not going to run long with stock injectors</TD></TR></TABLE>

True story.

If the motor has good leakdown and comp #'s there is no reason you cant run 8 psi like it is a fresh motor. Just please get injectors and a tune.

SOHCD16y8

Yes DSM 450's will work.

jrc weez00

ok ill order the injectors right now but there kinda of pricey? is there going to be a notible difference in horsepower? for the price and by tune u mean like get it dynotuned?

SOHCD16y8

Dsm's are like 20 bucks from a junkyard. By tuned I mean take it to a tuner and pay them to hook up a wideband and tune the car. It doesnt have to be on a dyno, but you have the idea.

jrc weez00

ok ill amke some phone calls

jrc weez00

just for curiosity purposes my car runnin 8psi with the 450cc injectors wat u think estimated horse power would be?

Boosted Chemist

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHCD16y8 &raquo;</TD></TR><TR><TD CLASS="quote">

True story.

If the motor has good leakdown and comp #'s there is no reason you cant run 8 psi like it is a fresh motor. Just please get injectors and a tune.</TD></TR></TABLE>

Even if the number suck, boost it. Its going to die anyways, might as well have fun

SOHCD16y8

What motor and turbo do you have? That exhasut is going to kill you on power.

SOHCD16y8

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

Even if the number suck, boost it. Its going to die anyways, might as well have fun </TD></TR></TABLE>

True, I was just trying to get across that motors are dumb and dont have a sense of time.

jrc weez00

0k i got ahold of some 850cc injectors and a resister box for 80 bucks im going to put them in tonight hopefully and no ones told me estimated horsepower at 8psi with this setup?

agrn93ls

estimated with 2 1/4" exhaust = crap jk

tuned well somwhere between 210-240 depending on setup and tune. ?

jrc weez00

lol so go 3inch asap? and everyone keeps telling me tune tune tune, well i just found out mty ecu already ahs the hondata s200 but i have no where around here to get it tuned? and someone told me b4 the new head alone i would be doing close to 230. also i got ahold of an msd boost retarder that retards ur timing at different levels of boost? i think? i heard this protects my engine from detonation? true or false?a nd is it worth what i paid?or is it something u dont really need?

agrn93ls

3" is preferred but not necessary. better but with the lower boost level your runnin it will be ok with out. no you dont need the MSD if you tune, the tuner will tune in the retard per boost.

and yes the people tellin you to tune, tune, tune are correct.

give me the MSD for the boost evaluation fees i am incurring.

jrc weez00

haha well ill let it go for cheap if someone can tell me where to get it tuned at? and also i need a bov. mines old as ****, ill trade for a nice one? and wat is a recomended one on this setup that isnt 200?

Schister66

new injectors, new exhaust and a retune...

fmfkid250

leave the exaust and get a dump of some sort....
If your daily driving it why the hell do you need all the power

get a dump and be done..

I dident read all the bull **** in this thread but

My Stock 150+k ls motor I am running dsm 450s and Daily drive it as my beater and it went 11.88@121

The key to making this motor last is RPM's keep them stock dont overshoot (and a tune but thats a givin)

to add to this What t3/t4 turbo do you have trim ect. this will be the biggest factor @ your hp vs psi

Schister66

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fmfkid250 &raquo;</TD></TR><TR><TD CLASS="quote">leave the exaust and get a dump of some sort....
If your daily driving it why the hell do you need all the power
</TD></TR></TABLE>

2 1/4" Exhaust is a HUGE restriction...why not upgrade? On the same boost level, you'll have less lag and make more power. Not to mention, he's not going to be making 400whp on 8psi...he's still going to fall short of 300whp which is well within the realm of safe on that engine

fmfkid250

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Schister66 &raquo;</TD></TR><TR><TD CLASS="quote">

2 1/4" Exhaust is a HUGE restriction...why not upgrade? On the same boost level, you'll have less lag and make more power. Not to mention, he's not going to be making 400whp on 8psi...he's still going to fall short of 300whp which is well within the realm of safe on that engine</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fmfkid250 &raquo;</TD></TR><TR><TD CLASS="quote">leave the exaust and get a dump of some sort....
</TD></TR></TABLE>
A.K.A a cutout
an open dp flows a hell of alot better then a 3" exaust

Schister66

i dont relate "dump" with "cutout" first off...

Also, who wants to drive around w/ an open cutout all the time? I hated the sound of open downpipe on my car. The problem with the cutout method is that if you want to make power, your car has to be stupid loud to do it....i say do it the right way and get a full 3" exhaust

fmfkid250

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Schister66 &raquo;</TD></TR><TR><TD CLASS="quote">i dont relate "dump" with "cutout" first off...

Also, who wants to drive around w/ an open cutout all the time? I hated the sound of open downpipe on my car. The problem with the cutout method is that if you want to make power, your car has to be stupid loud to do it....i say do it the right way and get a full 3" exhaust</TD></TR></TABLE>

Why in the hell would you want to be driving around like an ******* all the time?

I have ran this **** for years... 3" exaust just doesent do it for me...the power gains from and open dp to a 3" its worth being loud
If your going to do it right 4" is the way to go..

Schister66

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fmfkid250 &raquo;</TD></TR><TR><TD CLASS="quote">

Why in the hell would you want to be driving around like an ******* all the time?</TD></TR></TABLE>

I'm not saying you have to, but if you wanted to get the use out of it, you'd have to basically run open dp. I guess at this point, it is a matter of preference. Personally i hate open DP, but if you can deal with it or even like it, then i say go ahead. I suppose you would make more power and spend less money on a cutout, but that's just not for me...