Toyspeed.org.nz Message Board

by **CelicaGT8** » Wed Oct 13, 2010 6:37 pm

Sorted out my engine missfire (rotor, cap, king lead)

I have turned up the boost on my st171 corona wagon, 3sgte with ct27 (pics of turbo upgrade in the link below) but now when i floor it with 13ish psi it pings like hell, scary stuff! (goes like hell too tho hehe)

Its running a standard st185 pump, but the fuel lines are smaller (using carby lines) could the pinging be due to lack of fuel? injectors too small?
Its timed to 10deg btdc and im running 95octane.

by **iOnic** » Wed Oct 13, 2010 6:46 pm

Check the fuel pressure and test the flow rate. The pumps don't flow as much as they get older - smaller lines won't help either. Would pay to get the injectors cleaned as well.

OMG so shiny! · by **Dell'Orto** » Wed Oct 13, 2010 6:48 pm

^ that.

by **CelicaGT8** » Wed Oct 13, 2010 7:04 pm

Have checked the fuel pressure, about 40psi at idle, but i dont no what its doing when im driving... cleaning injectors is pricy?

Website · by **Bling** » Wed Oct 13, 2010 7:36 pm

PM Matt Dunn if you want to get them cleaned

by **levinguy** » Wed Oct 13, 2010 7:39 pm

see how long the fuel pump pumps un regulated, chuck the fuel feed in a bucket, time it for a minute. think it should be 180 l/hour? duno.

by **CelicaGT8** » Wed Oct 13, 2010 8:12 pm

So your pointing to fuel??

by **levinguy** » Wed Oct 13, 2010 8:13 pm

by **iOnic** » Wed Oct 13, 2010 8:19 pm

What sort of intercooling do you have?

by **CelicaGT8** » Wed Oct 13, 2010 8:21 pm

Have a good sized front mount, 2.5" piping, pictures on my projects page. Its over kill i think, so should be ok

by **Heylin** » Wed Oct 13, 2010 9:43 pm

My MR2 was pinging its ass off on CT20b @ 16psi. Stock fuel pump was flowing 135 LPH (same a NA corolla).

New they flow 180LPH but from about 180,000 kms onwards chances are they are wearing out and slowing dying.

by **CelicaGT8** » Thu Oct 14, 2010 4:53 pm

poor car, what flow rate would you all recomend? over 200 lph?

by **strx7** » Thu Oct 14, 2010 5:01 pm

CelicaGT8 wrote:poor car, what flow rate would you all recomend? over 200 lph?

MSD pump off trade me. I have personally tested one of these pumps at 240LPH @ 60psi.....

by **iOnic** » Thu Oct 14, 2010 5:01 pm

Depends on the pressure as well. A stock 3sgte pump flows around 200lph at 35psi and supports up to 60psi fuel pressure (40psi base pressure + 20psi boost) before it falls flat on it's face and is only flowing around 150lph. At idle/base fuel pressure it should be flowing around 190lph.

no grip · by **Akane** » Thu Oct 14, 2010 5:03 pm

Whinebro 255lph, cheap and effective.

by **levinguy** » Thu Oct 14, 2010 5:25 pm

Akane wrote:Whinebro 255lph, cheap and effective.

i agree. oh and i happen to have one for sale. $500

by **CelicaGT8** » Thu Oct 14, 2010 6:54 pm

levinguy wrote:
Akane wrote:Whinebro 255lph, cheap and effective.

i agree. oh and i happen to have one for sale. $100

Sold!

by **phoenix** » Thu Oct 14, 2010 7:27 pm

levinguy wrote:i agree. oh and i happen to have one for sale. $500

Is it gold plated?

by **iOnic** » Thu Oct 14, 2010 7:29 pm

levinguy wrote:
Akane wrote:Whinebro 255lph, cheap and effective.

i agree. oh and i happen to have one for sale. $500

LOL that's almost $300 too much

by **iamawesome** » Thu Oct 14, 2010 8:59 pm

CelicaGT8 wrote:and im running 95octane.

well here's your first problem.

Toyspeed.org.nz Message Board

Ping Ping 3sgte

Ping Ping 3sgte

Re: Ping Ping 3sgte

Who is online