Still no Real Boost Until 4K - Did I Buy The Wrong Turbo?

[JFairman]

Originally Posted by drmatera

pics or it didn't happen

yeah really... that sounds like exaggeration big time.

[mooney265]

Originally Posted by PoloTurbo

I have a brand new K27-7200 with headers, muffler and intake. I get to 1.0bar in 4th at 2300rpm. :-)

"Intake?"

[PoloTurbo]

It was -20c outside hence the smilie and not representative of normal conditions.

Yes intake, sorry for term error. Removed box with cone type filter.

[Norm K]

Originally Posted by PoloTurbo

I have a brand new K27-7200 with headers, muffler and intake. I get to 1.0bar in 4th at 2300rpm. :-)

We must be talking 2300 RPM Canadian, right?

[PoloTurbo]

I guess.

[proffighter]

Originally Posted by nkowi

We must be talking 2300 RPM Canadian, right?

Maybe it's idle RPM plus 2300 RPM

[nismo silvia]

I didnt feel like reading all that bs but on your turbo is it a divided housing and what brand and model turbo is it pics and how is your exhaust mani setup wg etc.

[Norm K]

Originally Posted by nismo silvia

I didnt feel like reading all that bs but on your turbo is it a divided housing and what brand and model turbo is it pics and how is your exhaust mani setup wg etc.

It would seem that not only didn't you feel like "reading all that bs" but that you didn't feel like reading anything at all.

[sjf911]

Originally Posted by nkowi

Well, whattaya know!

Perhaps this ... "I removed mine from the car last weekend, It was not well suited for a stock car..." would've been useful information to provide to a prospective buyer when offering it for sale.

Caveat emptor, as they say ... or C'est la Vie. I guess it's just money.

So, anyone in need of such a turbo? Anyone have a good street use turbo available?

I have a low mileage K27S (modified 7200) lying fallow on the shelf if you are interested.

[Ronnie's.930]

Originally Posted by nismo silvia

I didnt feel like reading all that bs but on your turbo is it a divided housing and what brand and model turbo is it pics and how is your exhaust mani setup wg etc.

WOW, call someone's post "bs" and then expect people to answer your questions? I call B.S. on that!

[proffighter]

Originally Posted by nismo silvia

I didnt feel like reading all that bs but on your turbo is it a divided housing and what brand and model turbo is it pics and how is your exhaust mani setup wg etc.

Not good after 3 posts only...

I am sometimes writing a bit harsh too (mainly due my swiss temperament), but fellows know I can be really nice too

[nismo silvia]

Yes I said BS omg it is the end of world. But for real you guys seem as bad as honda and sti kids you just go by k27 or bla bla did you ever look at the compressor map for this turbo. Not trying to put anyone down but there are not very many reasons that a turbo wont kick in and there are ways to fix it. I had a GT4094R full boost at 1900RPM. You need to pick a turbo that will operate in at least 60% of the turbos operating range or it will get damaged or be less effective than a smaller turbo. Also yes I did stop reading because I saw a bunch of posts about trying this and that no real turbo knowledge.

[rsrfan]

Originally Posted by nismo silvia

Yes I said BS omg it is the end of world. But for real you guys seem as bad as honda and sti kids you just go by k27 or bla bla did you ever look at the compressor map for this turbo. Not trying to put anyone down but there are not very many reasons that a turbo wont kick in and there are ways to fix it. I had a GT4094R full boost at 1900RPM. You need to pick a turbo that will operate in at least 60% of the turbos operating range or it will get damaged or be less effective than a smaller turbo. Also yes I did stop reading because I saw a bunch of posts about trying this and that no real turbo knowledge.

Easy there Killer. Seems you need a refresher course on reading comprehension. Yes, MOST of us are very familar with compressor maps. The issue here was that the orginal poster did not know what variant of K27 he has. The responses that you so eloquently dimissed were given under the pretense that his turbo was a common variant k27 7200 or 7006. If you are half as knowledgable as you believe yourself to be you may wish to give constructive advice that would actually benefit the community rather than charging in headfirst after ordaining yourself the avatar of all turbo gods. Stick around, you just might learn something...

[Tippy]

Comparing us to Honda/Subi forum members?!?! 180* from that.

[Speedy Squirrel]

"Avatar of all turbo gods". I have found my new tag line!

[Benny771]

Originally Posted by RarlyL8

That is NOT a 7200 or even a 7006; my guess is a large track-oriented turbo.

Brian answered you.

[Norm K]

Originally Posted by Benny771

Brian answered you.

Yes, I know, way back in post no. 10. Thanks, though, for pointing that out.

[petri]

The level where the engine (930 based) do spool, depends on the basic characteristics how the basic engine is build. The same engine as natural aspirated how it works without turbo gives you a hint how it would work with turbo and the rpm of spooling.
as if it is standard 930 as base, you can get some 100-300 rpm down because of characteristics of the engine with some perfectly fitting turbo variant.
But then it also affects to the engine characteristics in higher rpm (how high you can go with usable rpm on overall and without lag in the boost).
This is dependable of your fuel management system as well as engine management system.
Most of the slightly altered 930 systems with optimized turbos don't spool very early (as modern engines), but might handle some quite high revs for turbo engine with still reasonable boost (no noticeable lag).
I play with very old fashioned K-Jet management and with some nice mechanical hardware. My quite capable engine doesn't spool sooner than 3500-3900rpm, but it does go up to nice 9000rpm with full boost without hesitation (still with standard turbo piston rods) with my KKK27/32 combo. Now I'm testing some Holset variant as near as possible to my old KKK with the aim to keep same characteristics of my nicely working performance engine.
The engine is one comprehensive unit with everything in it. If you want a great time earlier spooling engine, you have to work with your everything starting from exhaust system, engine management etc...