hey all on friday i converted to si from dual point....works good....only it will not hit rev limiter.....it will get to 6grand and just plain out......wht could b causing this i have changed the coil in the dizzy and the fuel filter and the fuel pump adn got newer injectors.......i dont know wht the problem could be any idea's???

 

Are the any codes being thrown? What ecu are you running?

 

its not throwing any codes......and im running a pm6.....altho i could use a pm7

 

if you only did the dpfi to mpfi you only have a dx or std engine i think it only redlines at 6k? i dont know what would be stopping it?

 

me either.....i mean i took an 88-91 si harness complete and swaped the whiole entire car harness.....so i mean it should b hitting atleast 7200....i am trying to get another si dizzy to se if that helps

 

hey civic46 i had the same problem and it turned out that my head was cracked... maybe try changin the head?.. see if that does anything

 

the pm6 should only go up to about 6500 anyways. a pm7 would be a little more aggressive. now if you want straight up raw go with a pr4 from a 89-90 integra. maybe its just me but at about 4500 it feels like my motor just stop producing power. with the pr4 you redline at 7000 and build power all the way through.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civic46 &raquo;</TD></TR><TR><TD CLASS="quote">me either.....i mean i took an 88-91 si harness complete and swaped the whiole entire car harness.....so i mean it should b hitting atleast 7200....i am trying to get another si dizzy to se if that helps</TD></TR></TABLE>

Hmm... That's generally not recommended.

 

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

Hmm... That's generally not recommended. </TD></TR></TABLE>

+1.

iirc the stock redline on a pm6 is 6800.. have you checked your wiring and grounds.

 

is the 89 integra computer plug and play with an si?

 

dont go and start plugging in DOHC ecu's. if you want more power, go woth some bolt ons and tune the pm6.

the car isnt going to run right. too much fuel and the wrong timing does not equal useful power

 

bad dizzy, clogged cat,...

 

well see i have a sohc vtec,im using a rpm switch to activate vtec and stock ecu.
would the integra ecu be better then the one im using.
i have the complete manifold,and distro that came with my motor..
but i wasnt planning on upgrading to obd1 just yet....

 

well thanks alot.....i was thinkin the head was junk too....but i was just pissing around saturday b4 the races switched the cam out with a single cam zc cam and BANG it is dead on the way it should b......went out and made it from 16th-5th in 11 laps and was taken out **** but it goes likie snot now guys thanks for suggestions!

 

The question is will you really be making that much power up there anyways, people always want to take away rev limits "I understand in your case", but seriously are you really going to want a greater chance of breakdown, for a little more power??? Unless this is of course a race car

 

ya this is a straight up dirt track race car

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civic46 &raquo;</TD></TR><TR><TD CLASS="quote">ya this is a straight up dirt track race car</TD></TR></TABLE> in that case props to offroad EF

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civic46 &raquo;</TD></TR><TR><TD CLASS="quote">ya this is a straight up dirt track race car</TD></TR></TABLE>

show pics!

 

lol, yea post some pics, i call bs

 

bs....pfft u just wait......ill get a site with a bunch of pix up tonight and have em posted for ya bois tomorrow sound good? ....

 

sorry here is a lil sumthin....good way to use my quality work time haha its the black car....the white 4 door ef was a 200 lap endurance race in which i got 3rd

http://s153.photobucket.com/albums/s212/teleto69/

 

 

sweet ride

 

wow i jsut chopped up sum ford mystique injectors to fit into the fuel rail and WOW wht a diff when ur wide open but ideling it jsut floods out