severe97

So I installed my turbo and DSM injectors with resistor pack and the car won't go pass 3000 RPM's, is this because my p28 ecu is stock...Do I need to chip it? I have a V-AFC.

doood

iTrader: (1)

a chipped and tuned ecu would help. but it sounds like you might have other problems.

btw, a vafc is not a good tuning tool

turbociviccoupe

if the car is leaning out bad it will feel as if you hit a imaginary wall. like doood said tune will help

severe97

yeah..i keep hearing to go with hondata instead..I also heard my stock p28 ecu won't work with DSM injectors...it has to be chipped..is that true?

Tatakai

you don't need hondata, if you have a reputable shop with a dyno they should be able to chip and tune you're ecu with chrome/uberdata. however if you really wish to spend and extra (large sum) on hondata then go ahead.

severe97

thank you I thought so...do you guys know how much I can boost with the 450 cc DSM injectors?

turbociviccoupe

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by severe97 &raquo;</TD></TR><TR><TD CLASS="quote">thank you I thought so...do you guys know how much I can boost with the 450 cc DSM injectors?</TD></TR></TABLE>


go with chrome. just my opinion though. your tuner will know how much boost you can do with 450's. he will tell you when the injector is maxed.

severe97

good info...I heard from a friend chrome is good...but he said something about only being able to boost no more than 11 lbs..

Tatakai

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by severe97 &raquo;</TD></TR><TR><TD CLASS="quote">thank you I thought so...do you guys know how much I can boost with the 450 cc DSM injectors?</TD></TR></TABLE>

depends on you're motor. is it built? do you have gsr/itr oil and water pumps? if it's somewhat stock i wouldn't suggest more than 10psi on the higher side, a nice 7psi for daily driving. however it's all in the tune.

severe97

I have a built motor..9:0:1 compression with titanium valves, arias pistons and the block is sleeved at bensons bored to a 2.0 liter.

turbociviccoupe

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by severe97 &raquo;</TD></TR><TR><TD CLASS="quote">good info...I heard from a friend chrome is good...but he said something about only being able to boost no more than 11 lbs..</TD></TR></TABLE>

depends on how many bar map you have. go with a motorola map sensor. im boosting 18 lbs on the street with chrome. tuning to 26 lbs at the track soon.


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

depends on you're motor. is it built? do you have gsr/itr oil and water pumps? if it's somewhat stock i wouldn't suggest more than 10psi on the higher side, a nice 7psi for daily driving. however it's all in the tune.</TD></TR></TABLE>

depends on the tuner. i have personally boosted 18 psi on gsr,ls, ls vtec. and 16 lbs on my b20vtec. all stock block plenty of people have exceeded that. like i said it depends on the tuning

TegProject

the 450 injectors are used stock for 9 lbs so they can't go much more than that. If you have a built bottom end then you are going to want to get some bigger injectors to push some more boost through. If you don't get bigger injectors then there was no point to building your bottom end. Make your money worth it and get some nice injectors.

turbociviccoupe

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TegProject &raquo;</TD></TR><TR><TD CLASS="quote">the 450 injectors are used stock for 9 lbs so they can't go much more than that. If you have a built bottom end then you are going to want to get some bigger injectors to push some more boost through. If you don't get bigger injectors then there was no point to building your bottom end. Make your money worth it and get some nice injectors.</TD></TR></TABLE>

i boosted 14 lbs on 460cc pretty close

severe97

the only reason I installed 450cc is because they came with the turbo kit i bought..should I go with 550cc?

doood

iTrader: (1)

use injectors big enough to support the hp you'll be making. so, what's your hp goal?

severe97

450 500 max

doood

iTrader: (1)

use this to determine ideal injector size: http://rceng.com/technical.htm

severe97

right on...that formula looks complicated..but it gave me 707cc..so 700cc injectors..thnaks for the info man