Yes it would work but you might want to have it road tune.

 

Chris
Seem like we tried to tell you about how laggy these turbos were??? All you had to do is take a ride in the Black GT800 here in the Woodlands.
Robert

 

It's not that bad as what I was expecting, but it is laggy. I am going to have Akram build me a motor eventually and I am going to turn these suckers up. If I had 24/18s Id be limited to 650whp like Todd stated and I would have to upgrade, so I might as well start big I want to make 750 or so awhp when I'm done with the motor. Though it's going to be awhile before I can do any of that though.

 

I better get to upgrading my car... seems like You, Sean and Paulie are getting faster everyday...
Robert

 

Frank N Stiens? In Katy or Sugarland?

 

Katy...just got back it was dead. However it was nice to spend an evening w/ the family. We definately have to get all 4 cars out together.

But back to an OT related question:Is it possible to put bigger compressors in the 28's?

 

996ttDMB,

I am not sure about the GT28's, but IMO, you can't go wrong with the K24/18G's. No lag and plenty of power. This is an extremely responsive package that offers fantastic peformance at a great price. I am now on my second season with these turbos and my thirst for more power has been quenched. The power is explosive and sustained...just a sweet turbo. I am sure the larger GT30's or GT35's are wild, but the 24/18G should not be overlooked for it's inherent advantages of low cost, low maintenance, awesome pump fuel performance, etc. Simple, yet very effective.

 

I thought this thread had a lot of potential, since I was wondering the same thing. Thanks to Todd from Protomotive for his input. I wish some of the tuners that use the other turbos would contribute with some technical knowledge/information. This by no means is intended to be a X vs X type question.

 

I would also like to thank Todd for his input. I was hoping to hear more info on why the other setup is preferred by the other tuners, or at least their reasoning as to why they chose garretts.

 

I agree with what others have said. I do not think many folks realize how big the K24/18G turbos are. As Rob mentioned, he was over the other day and we measured the compressors and turbines of the following turbos: stock K24, GT700 (Tial KKK/GT28 hyrbrids), GT2860RS and K24/18G. The K24/18G had the largest compressors and turbines. For getting the maximum power from a stock engine, I think that the Protomotive 24/18G turbos are hard to beat (rapid spool, 700+hp crank potential, bolt-on convenience). Among the current offerings, they are as big a turbo as you can run without needing to strengthen the stock engine. Unless you go with an unproven setup (blaze a new trail), the next size larger turbo (both compressor and turbine) is the GT30 turbo. It requires new or custom manifolds, exahaust, oil lines, water cooling, etc. To really get the most out of it you will need to go with stronger rods otherwise you will damage your engine (unless you dial down the tuning, and then what is the point of having them?). If your ultimate plan is to go for >750 crank hp on a built bottom end, then the Garretts ultimately allow more upgradeability. If you do not plan to build your engine, I can't think of a bolt on turbo that will outperform the K24/18G. They are in the sweet spot as they are quite suitable if you do not want to upgrade your fuel pump or injectors, yet have enough in them to max out such a fuel system upgrade.

 

Great question. Here are some quick answers:

Going with Garrett offers unlimited choice. Feel lag? Swap to a smaller turbine housing. Crave more power? Get larger units and sell your old ones to anybody (3K units only fit 996TTs).
Replacement cost is lower in the rare event of a failure.
They are popular and have published specs and compression maps. Most shops know Garretts well and can avoid a lot of R&D guesswork.
It gives the shop an opportunity to showcase their fabricating skills for headers and exhaust. Look at Vivid's AP650 kit...it's gorgeous.
Garrett is ahead of the game in technology compared to 3K, IHI, etc and there are specialty companies that even tweak the Garretts (Turbonetics, HKS, Tial, etc).

 

does anyone know what the costs are involved to have this modification done to stock K24's?

 

Rob,

BTW, Akram and I worked all our differences out. As far as I am concerned, we are definitely on good terms.

Back to the original topic, does anyone know if the compressors in the GT 28's can be upgraded? I may have to suicide myself if paulie, w/ his miserly 13K in upgrades pulls on my full GT 700 set up (which I was told by Todd might happen up top).

Yes, Todd's hybrids are a hell of a bang for the buck upgrade.

 

DrivenAgain- Last time I checked (late 2007) it was $1200 for the upgrade from K24s to K24/18Gs, and $400 to upgrade both wastegates to 1bar units (highly recommended). You will also need tuning of course, plus at least a 5bar FPR fuel upgrade and an electronic wastegate controller. In addition, a high flow air filter, exhaust, and DVs are recommended. BTW, it seems that used K24s seem to be scarce lately and new K24s have increased in price due to the Euro/USD exchange rate.

 

You mean the original "off"-topic? Sean, the compressors are not the major limiting factor with your setup, it is the turbines. And to answer your question: no, they cannot be easily upgraded. Come by my house sometime. If I still have a set here I can show you why.