Kando Dynamics Turbo

[MookRG]

Nah, its a 25 with 26 rods, crank and pistons, also running poncams.

[GTScotT]

My car blows fireballs the size of a car so i dont think its running lean,

I backed the boost off to around 16psi from 22 to control the heat, it was stupid hot at winton this weekend. It did make a difference, as it should.

Very low timing will result in excessive exhaust heat. It will cause the thing to run really hot, ping earlier than it should when trying to run more boost (capping power) and will also make it get on boost quicker.

I have had a setup tuned like this and am speaking from experience. The car got on boost fine and when/where expected (if not earlier) but the power delivery wasnt right.

[MookRG]

When you say low timing to you mean advanced or retarded?

The car had around 40-50 on the knock. Nothing drastic.

[Frosty]

No cat, does have a straight through muffler and a res though,

The AFR's were a little rich on the dyno, not heaps just a little to be safe, from memory they were around low 12's high 11's i think. I'm pretty tired from the weekend, i could be wrong i will check later today gonna go see my tuner.

Very low timing will result in excessive exhaust heat. It will cause the thing to run really hot, ping earlier than it should when trying to run more boost (capping power) and will also make it get on boost quicker.

I have had a setup tuned like this and am speaking from experience. The car got on boost fine and when/where expected (if not earlier) but the power delivery wasnt right.

Then yeah could also be timing as above

[GTScotT]

When you say low timing to you mean advanced or retarded?

The car had around 40-50 on the knock. Nothing drastic.

My car had numbers lower than 10. The tuner couldnt dial in more because the boost was too high straight off the actuator. If we had a lower pressure actuator it would have been a different story.

Is this hitting any points with your setup? whats the lowest boost you can run and did your tuner go all out on the tune with low boost first?

My understanding is the best way to tune works like this: Start with the lowest boost possible and most aggressive tune, slowly wind the boost in and soften the tune as you go.

Rather than get fueling right then add boost and slowly add timing - doesnt work.

[MookRG]

I don't think my timing was any lower than 10. Pretty certain it was all higher than 10

We didn't completely reset the boost. Lowered it too around 14psi and went from there. I blew the gearbox on the weekend so once I get it back together, next year, we'll put it back on the dyno to check it again before I buy another 3540 and sell the Kando.

[GTScotT]

You sure you want to give up on it? Simon got great results from his.

I wonder if any of that is contributed to the ethanol tho.

[MookRG]

Not giving up yet, i wanna get back on the dyno and have a little more of a play, but i dont think that will change when the turbo spools up and starts running out of legs.

[Frosty]

Not giving up yet, i wanna get back on the dyno and have a little more of a play, but i dont think that will change when the turbo spools up and starts running out of legs.

out of curiousity what turbo are you running? what size rear? how much power are you making?

[MookRG]

T67-25G 10cm, 20psi, 275RWKW, BP ultimate

Edited November 26, 2012 by MookRG

[Frosty]

T67-25G 10cm, 20psi, 275RWKW, BP ultimate

thats a low figure for that turbo. so the plot thickens! keen to see when you get this back on the dyno to try sort this heating issue out

[GTScotT]

Mook what state are you in? Maybe send your rear housing to Stao (Hypergear) and see if says theres a problem with it.

He stocks these turbos too at the moment. He will be able to directly compare yours to one of his 10cm's and also be able to check for defects. If its not right he can supply you the new housing.

[MookRG]

I'm in Victoria, Hypergear is in too melb isnt he?

I'll be able to go see him first, that way i might use a little less time playing on the dyno.

FROSTY, I was a bit disappointed when we tuned it, though its not so much about how much power it made as when and how its making it, very early and seems to run out of legs at high revs, let alone the heat issue.

[GTScotT]

Yep hes in Melb. You should go see him, Im confident he will be able to help you.

[Frosty]

FROSTY, I was a bit disappointed when we tuned it, though its not so much about how much power it made as when and how its making it, very early and seems to run out of legs at high revs, let alone the heat issue.

see to me doesnt seem right! are you sure you got delivered the right turbo??!

do you have a dyno sheet i can look at?

[GTScotT]

Yeah, He's more or less getting 20g results from his 25g turbo.

Very weird.

[Frosty]

Yeah, He's more or less getting 20g results from his 25g turbo.

Very weird.

exactly what i was thinking! my 8cm Tdo6 is out performing this which is why im curious to see a dyno so we can compare and maybe get an action plan going here

[SimonR32]

thats a low figure for that turbo. so the plot thickens! keen to see when you get this back on the dyno to try sort this heating issue out

Either the problems is the anti-surge cover or something else with the car...

[Frosty]

unlikely if its coming on too early and if its running out of puff! sounds like its too small

[SimonR32]

unlikely if its coming on too early and if its running out of puff! sounds like its too small

So a 3076R 0.63 which is smaller is EVERY way can be ok on a 30DET but this is too small...