13-06-06, 22:00 GMT+10#236 Ok, to answer a few questions. DeVL, twin T3 turbo's won't ever make full boost at 2500rpm. They won't make full boost at 3, or even 4000rpm, standard T25's only make full boost in the 4200-4400rpm range on a GTR, the extra .4 litre will only get you back about 400rpm. SO, even with stock turbo's, we are talking high 3800-4000rpm's full boost. Make the turbo's bigger, more lag again.
Also, 10 psi from 1 turbo, and 10 psi from a second turbo, doesn't equal 20 psi. Air pressure equalises, both prvide half the total airflow the engine recieves, but are doing so at the same boost. TWins are sh it in my opinion, the only reason people even still babble on about it is from years gone by when you could get ball bearing or nicely sized small turbo's that worked well as twin setups, but only had big, laggy plain bearing old school turbo's to use as a single. With new GT series technology and the invent of ball bearing technology in larger frame aftermarket turbo's a single will now usually far outspool a twin. TAke a look at some of the US supra sites, they will all tell you the same deal, equal power, 300-500rpm slower spool for twin.
As for the GEN 3 kits, everything is ready to go, I must point out though that I only supply turbo's, manifolds and oil/water lines. Basically, all that is needed is the intercooler and pipes and full exhaust. My reason behind this is many. 1, I don't have time to build all the extra stuff like pipes. 2, becuase I want to appeal to a wider range of customers, I can sell the turb kit to any shop in the world, and they can finish it as they see fit and add their own touch and call it their own. 3, this also gives them scope to make more cash, as they can charge for their time in fabricating the pipes and mounting the cooler etc, and lastly, there are 100's even 1000's of people out there with the skill to do some cooler pipes and an exhaust in their backyard or with a mates help, its not that complicated, and with the VT's now under 20g, someone with some skill could build their own 500kw monster for less than 30g.
The TWin turbo kit has GT28 garrett BB turbo's that are custom specced for my application, we are seing full boost around 2600rpm, and in the case of the gen3, are getting full boost as fast or faster than single GT35 equiped cars, and in the next week will see if they make more power. WE have made a shade under 500rwhp on 10 psi of boost, and at that power, had the timing backed off as the fuel system could not cope with making any more power, as an indication, it should take another 4 deg, and the 2 deg we added before made another 15rwhp. Also, the car was dyno'd on a dynolog dyno, which reads about 20-30rwhp lower than a DD dyno in shootout mode, as all other kits have been measured. I'm confident, or at least hopefull, that it should crack over 400rwkw with the same 10psi when tuned in the next week, which is up there with some of the bigger GT45 equiped cars in terms of power versus boost.
Regards..........................6BOOST
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