Super CT26

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Originally Posted by c.h.i.e.f

guys just thought i would let use know that the poblems that i was having with my fuel pump (not getting any extra fuel out of it) and starting ruff has been sorted to a certain degree! i was explain before that there is a screw on the front of the pump that controls the rack travel and that i found controls the startup fuel (few of use would already know) it was all the way in :o

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That stop screw only controls rack travel for fuel enrichment at cold start - when the 'toe' of the sensor lever goes into the notch on the torque cam. In all other cases the sensor lever contacting the torque cam prevents the rack travel befor that stop screw.

so the tuning shop didnt do anything after i had street tuned it, they are waiting to see if they can get their hands on a compensated pump - hey if i can get it cheap why not?

so took the baboon for its first leg stretch over the weekend, about a 350k round trip from brissy to teewah beach for the weekend. i forgot how good the isuzu is at pulling through the sand!!

so with stock gearing (LT95) on 35's (and the roof loaded up, and car pretty full) doing 100k's no head or tail wind it ran around 10psi, 300 deg egt (pre turbo), 200kpa oil pressure :eek:, and 82ish water temp. how does this sit with other people? oil pressure seems low but is pretty much the same as my old isuzu, even after the rebuild:mad: the gauge is in the bottom drivers side back of the block.

i can't seem to get the egt over 550 on the freeway - was the longest hill i could find. so i think she is running a little lean maybe at higher rpms - but is running a little dirty at low rpms, i have screwed the fuel a long way out!

finally go my 35's on, and pinched the flares off my 90, standard rear springs and some old 2" springs in the front for now

https://www.aulro.com/afvb/images/im...11/10/1353.jpg



https://www.aulro.com/afvb/images/im...11/10/1354.jpg

and hopefully my mate will have this bit of 4" tigged up for me this week

https://www.aulro.com/afvb/images/im...11/10/1355.jpg

Hi

Can you tell us what psi vs rpm you have in 4th gear when you floor it from let say 1000rpm:).

It is to compare a bit with a G turbo i also have but mounted on a toyota HDT 4.2L.

I am considering the 4bd1t for a built and G turbo to go on, but don low boost is what i am after.

So far on my 80 i have 15psi at 1600rpm, running pretty clean.

Thanks:)

hows it going?

Converted results here. These don't include driveline losses. Anyone want to take a stab in the dark on what they might be?

A/F and boost plot.

Sam needs less fuel down low and a lot more once it's spooled.

at a guess, a stock defneder (r380/lt230/sals rear/rover front) will loose about 40kw to the wheels

Quote:

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Originally Posted by Dougal

A/F and boost plot.

Sam needs less fuel down low and a lot more once it's spooled.

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10psi at 1600rpm:confused:, on my hdt i see 15psi at the same rpm, either the 4bd breath more at low rpm or it spit less:D, looks like the turbo is not spooling fast enough, maybe too big:confused:

Hi :)

Any updates on this super turbo?:angel::)?

I was told the turbo had some issues so went back. Now fixed it's very different. But I will wait for Sam to fill us in.