K-26 3LDZ map anyone?

[MotoSook]

Need the compressor map please?

[Slant930]

http://not2fast.wryday.com/turbo/maps/all.html#kkk

This site has two for a K-26, but not sure if they are for a 3LDZ. Worth a look at any rate I guess.

Timothy

[beepbeep]

K26 and 3DLZ have nothing in common. 3DLZ is old papperweight usually attached to the back of 930. I have never seen any maps for it...I wonder if they even exist. K27 is developed from 3DLZ....K26 is mostly seen in 951's

[MotoSook]

Thanks guys, I was trying to go the cheap route and thought I found it. I'm going to size a Garrett unit for my application(s) now.

Goran, you can probably pull this out of your head...what's a good 5-7 psi max boost unit for a 3.0-3.4 liter engine, for fast spool up. I need to crunch some numbers at home tonight, but might as well throw it out there for you and the gang.

I've been looking at the T3/T4/T04 Garrett units. This will be for a low boost system with milded HP aspirations, no inner-cooler and w/ CIS or Motronic engine control. In the CIS application I will add a pressure switch and an injector for enrichment. In the DME engine I will have a custom chip made.


..I'm not going crazy yet

[beepbeep]

Originally posted by Souk
Thanks guys, I was trying to go the cheap route and thought I found it. I'm going to size a Garrett unit for my application(s) now.

Goran, you can probably pull this out of your head...what's a good 5-7 psi max boost unit for a 3.0-3.4 liter engine, for fast spool up. I need to crunch some numbers at home tonight, but might as well throw it out there for you and the gang.

You want something that will flow arround 32lbs/min at top end.

KKK K26 off a 951 might actually work, it's inte the same power-category. Garret GT32 (non BB) will also work, altough GT-series turbochargers aren't made for such low boost pressure.

All in all, it's probably not worth doing if you only want to boost 5 psi.

You didn't say what you are trying to achieve but I guess you are planning to retrofit turbocharger on N/A engine and use low boost. As far as I heard, US-market SC engines will tolerate up to 0.5 bar boost...

0.5 bar of boost on SC engine is around 290HP, 32lbs/min flow...but you'll need to find a turbocharger that's efficient at high flow and low boost for achieving best results.

[MotoSook]

Yes, Goran, I'm boosting an NA car. I've been looking at compressor maps on and off all day! At 6000RPM, I'm looking at 36.5 lbs/min ideal flow using 8 psi of boost. I don't think I'll find the ideal turbo, but I'm hunting for a good fit.

[beepbeep]

I bet you'll be quite pleased with 8 psi whatever you choose, so you could start with used T04, K26 or similar. When everything works you can experiment with other turbocharger.

[MotoSook]

That was kind of my thinking Goran. Once all the plumbing has been done, I can refine it. I'm cheap as a mofo...so the parts cost have to be low ..LOW

Thanks!

[RickM]

Souk, You're pretty close to what would be used by Protomotive on a stage one 3.2 setup. Here's a summary from other threads:

"We (Protomotive) use the 60-1 in a T04B on a P trim wheel, then vary the a/r of the turbine housing for either Stage 1,2 or 3 from a .58 to a .84. The Stage 1 get's the .58 for good low speed response, but it kills the power on a Stage 3, so the Stage 3 get's the .84. But this way, we don't have to keep selling new turbo's every time you want to upgrade.
The 60-1 is one of the most flexible compressors in the T04B family and has the best surge line. So, surprisingly, even though it's larger than the V series, etc. It actually can make better boost and more efficiency throughout the range.

Boost onset is approx. 16-1800 rpm's with .5 bar at 26-2800
rpm's."

Turbo: T04B
Compressor trim: 60-1
Turbine trim: "P"
Turbine A/R: .58 to .84

[MotoSook]

That's the good stuff Rick! Thanks

[beepbeep]

75 buckaroos for old diesel unit:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=11769&item=3858154273&rd=1

New one, 200$ starting bid, P-trim:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7939679388&category=33742

This one is expensive, but has internal wastegate (good):
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7939915548&category=33742

[RickM]

$350 is an excellent price. A .96 A/R is a bit on the large side...how can one convert? DIY job?

[beepbeep]

I would opt for internal wastegate. It keeps headers simple and cheap.

Plumbing can be done cheap by cut/paste job on OEM exchangers. It won't look nice but it'll work.

[MotoSook]

I love E-bay...and I love keeping it simple, like the integrated wastegate.