How much HP to the crank can the 996TT run with no additional fuel and engine work?
I'm thinking about getting Kevin's zero-clearance k26/k18 hybrid turbos and was wondering how much HP (crank and rwhp) I can safely run using stock internals and no additional fuel (excluding using an upgraded fuel pressure regulator). How much HP (crank and rwhp) can I run on a 100 octane program?
Originally Posted by USCTrojanMan29
I'm thinking about getting Kevin's zero-clearance k26/k18 hybrid turbos and was wondering how much HP (crank and rwhp) I can safely run using stock internals and no additional fuel (excluding using an upgraded fuel pressure regulator). How much HP (crank and rwhp) can I run on a 100 octane program? 

Depends on what your tolerance for risk is. If you want to go conservative with an engine that will last, check out Ruf's numbers for stock-internal cars whic is approximately 550HP (and Ruf is known to be pretty conservative)
EVOMS/GIAC sell their GT640 kit with stock internals/fueling system.
Protomotive generally advices a maximum of about 600HP on stock fuel systems though their approach provides an option to change the maximum boost since they use an external electronic boost controller.
Also, scrutinize your tuner's approach. A high HP peak doesn't necessarily mean your car will perform as well as someone with a lower HP peak that has more 'area under the HP/TQ curve'. Some cars are better on the the dyno than the real world depending on the setup.
Some tuners also use more boost than others to achieve similar results.
EVOMS/GIAC sell their GT640 kit with stock internals/fueling system.
Protomotive generally advices a maximum of about 600HP on stock fuel systems though their approach provides an option to change the maximum boost since they use an external electronic boost controller.
Also, scrutinize your tuner's approach. A high HP peak doesn't necessarily mean your car will perform as well as someone with a lower HP peak that has more 'area under the HP/TQ curve'. Some cars are better on the the dyno than the real world depending on the setup.
Some tuners also use more boost than others to achieve similar results.
Originally Posted by yellowturbo
Depends on what your tolerance for risk is. If you want to go conservative with an engine that will last, check out Ruf's numbers for stock-internal cars whic is approximately 550HP (and Ruf is known to be pretty conservative)
EVOMS/GIAC sell their GT640 kit with stock internals/fueling system.
Protomotive generally advices a maximum of about 600HP on stock fuel systems though their approach provides an option to change the maximum boost since they use an external electronic boost controller.
Also, scrutinize your tuner's approach. A high HP peak doesn't necessarily mean your car will perform as well as someone with a lower HP peak that has more 'area under the HP/TQ curve'. Some cars are better on the the dyno than the real world depending on the setup.
Some tuners also use more boost than others to achieve similar results.
EVOMS/GIAC sell their GT640 kit with stock internals/fueling system.
Protomotive generally advices a maximum of about 600HP on stock fuel systems though their approach provides an option to change the maximum boost since they use an external electronic boost controller.
Also, scrutinize your tuner's approach. A high HP peak doesn't necessarily mean your car will perform as well as someone with a lower HP peak that has more 'area under the HP/TQ curve'. Some cars are better on the the dyno than the real world depending on the setup.
Some tuners also use more boost than others to achieve similar results.
Originally Posted by KPG
Ask your tuner, he is the one selling you the kit....
Trending Topics
Originally Posted by Dock (Atlanta)
Why would a tuner have to be selling him a kit? Someone, on their own, could add ZC turbos to their pre-existing ECU upgrade. Whoever they bought the original upgrade from might not have any data on the new configuration.
Originally Posted by KPG
Dock, a tuner wouldnt have to be selling a kit. I feel a tuner who has a tested kit, whether it is EVO,Proto or UMW, would have a better understanding of how it will work in regards to stock internals and fueling issues....Kevin
Originally Posted by Dock (Atlanta)
Again, a tuner might not have tested the combination of ZC turbos with their ECU programming. For example, someone with a EVO stage 2 upgrade might decide to upgrade to ZC turbos; however, EVO probably does not have any test data on that configuration since, as far as I know, that's not a combination they offer.
Last edited by KPG; Oct 29, 2006 at 10:48 PM.
Originally Posted by KPG
Dock, I am strictly talking about a tuner kit... they will know there products. If it is a mix and match of parts... who knows what the fueling requirements and power ceiling for a stock case should be.BTW, you kind of made my point for me. Kevin
As for information concerning adding ZC turbos to say, for example, an EVO stage 2 tuned ECU...it already exists. So the "who knows" part of your quote above really isn't "who knows".
Originally Posted by Dock (Atlanta)
Made what point? You said he needs to ask the tuner he's buying the kit from, but you didn't ask him if that was what he was really doing. I just established the point that he *could* be just adding ZC turbos to an existing tuned ECU...that's all.
As for information concerning adding ZC turbos to say, for example, an EVO stage 2 tuned ECU...it already exists. So the "who knows" part of your quote above really isn't "who knows".
As for information concerning adding ZC turbos to say, for example, an EVO stage 2 tuned ECU...it already exists. So the "who knows" part of your quote above really isn't "who knows".
Originally Posted by KPG
Yes Dock, that is what he is planning on doing since he has asked several questions thru PM. Yes , he could be adding ZC's to an existing kit, but he isnt.



