Twin Turbo on 2.5

[Gary in BR]

Hello,

Finally a few pictures from my Twin Turbo install.

The Supercharger removal and twin turbo install was handled by TurboWerx shop in Austin.

I also dynoed the car this weekend, as of now (it still needs another test and tune day) it is producing 50 - 60 horsepower more than stock all across the rpm. We think we can get another 20-30hp out of it. In comparison to the sc the turbos are producing 25 to 30 hp over the sc early in the rpms, I think that is because the turbos spool up so much faster than the supercharger did.

As of now I am getting full boost at 2800 rpm and carry the full boost all the way to red line.

Because of the heat wrap on the wires the dyno shop was unable to get a RPM read so I only have horsepower numbers. The next set of dynoes will have rpm numbers so next time I will have tourqe numbers. The Dyno Tech who has dynoed the car 4 other times said the tourqe was noticeably stronger.

I posted a video of the dyno pull from this weekend. The link is at
http://www.youtube.com/watch?v=jOunWKqkh80


Please ask any questions,
Gary

[CJ_Boxster]

Freaken Awesome Gary! How much did the kit and the labor set you back?

[RandallNeighbour]

Gary, please write as much as you can about the acceleration and overall feel between the TT and the SC kit you had on the car previously.

I know you got a sweet deal on this TT kit, but how much would Turbowerx charge me if I gave them my car and had them do the install? (It is a turbowerx unit, right?)

I am still torn between which option to go with: SC, TT, or 3.4 swap.

If money were no object, I'd go for the 3.4 and a six speed tranny and have that turbocharged. Now that's a quick boxster, huh?

[Gary in BR]

Originally Posted by RandallNeighbour

Gary, please write as much as you can about the acceleration and overall feel between the TT and the SC kit you had on the car previously.


The short version of the difference is the way the power was delivered. The turbo is at full boost at 2800 rpm and the sc was not there untill 5000 or so.

The turbo runs about 25 hp more than the sc across the entire rpms, when the sc comes on you can feel it, when the turbo spools up you dont feel anything because it does it so low.

I am not into street racing and spinning my 19inch Pilot Sports ( i dont care what youtube shows !!!) So my launch with the turbos is not as good as my launch with the sc. I can not get any boost going untill I start going.

I can tell you in gear acceleration is amazing, I can pass cars in 4th gear at 70 and be over 95 when I get back in my lane. I just do not have to down shift as often.

The sc was very noisy, and with the turbo from inside the car all I hear is the blow off valve and induction noises, i have an evo intake and desnorkeled so that helps too.


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I know you got a sweet deal on this TT kit, but how much would Turbowerx charge me if I gave them my car and had them do the install? (It is a turbowerx unit, right?)
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I think the kit and install is in the 6k range.

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I am still torn between which option to go with: SC, TT, or 3.4 swap.
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I would go for the 3.4 but from what I saw last year the price will run 10k or more.
For a portion of the money you get close to if not equal power. With the turbo or sc setups.
If you dont want to spring for the 3.4 go for the turbo.

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If money were no object, I'd go for the 3.4 and a six speed tranny and have that turbocharged. Now that's a quick boxster, huh?

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That would be a quick Boxster, in my no money an object I would go with a 3.4 bored out and rebuilt for as much power I could get.

But then again a 3.4 tt sounds real good...hmm...I dont need that 401k do I???

[hdpt73]

Gary, you have one sick boxster. 3.4 boxsters are pretty rare but a tt boxster is something you don't even hear of but once in awhile.

That's awesome Gary!! I am very curious about the turbowerx shop because I'm interested in their 3.2 kit. They haven't released all the details yet. What are your impressions of the shop? Can you tell us a little bit more about the outfit? Thanks for sharing.


Yeah, turbo's are a little tricky to lauch as you can't get any boost until it starts "working". The motor has to be under load for the turbos to spool. I love a little turbo whine now an then

[jhandy]

What kind of warrenty do they give on the parts? Do they cover the cost of the engine if it blows up? Is there any internal modification like Gemballa does?
James

[Gary in BR]

[QUOTE=boxsterz]That's awesome Gary!! I am very curious about the turbowerx shop because I'm interested in their 3.2 kit. They haven't released all the details yet. What are your impressions of the shop? Can you tell us a little bit more about the outfit? Thanks for sharing.



When I went to Austin to drop off the car I drove all night met him at Colvins Automotive (as seen on Overhaulin) we dynoed the car, talked a little and he took me to the airport.

At pick up he met me at the airport with the car, we went over a few things and then I drove home.

So i never saw his shop.






Yeah, turbo's are a little tricky to lauch as you can't get any boost until it starts "working". The motor has to be under load for the turbos to spool. I love a little turbo whine now an then



I love the sound of the blow off valves.