GT3 Tune on a 3.6 Carerra
04-10-2015, 09:51 PM
#2
Race Director
Totally different 3.6 liter engines....different engine blocks, components and management system.
04-10-2015, 09:53 PM
#3
Rennlist Member
Thread Starter
Ok, I have a tuner that wants to put a stock GT3 tune on my 3.6 Carrera. Said he has done it on a few and gained 35hp and no issues. Wondering what to do?
04-10-2015, 09:58 PM
#4
Race Director
GT3 and Carrera are different engines...everything is different from intake to exhaust. Management system is different...it's not the same at all. I've talked to all sorts of tuners but have never heard of putting a Porsche GT3 ecu program into a Carrera based car.
Last edited by mdrums; 04-10-2015 at 10:13 PM.
04-10-2015, 10:15 PM
#5
Rennlist Member
Thread Starter
Ok, thats what I am wondering. I have mods done. He wants to put a base GT3 3.6 file on my Carrera 3.6. Its been done to a boxster with a 3.6 carrera transplant. Wondering what the risks are and if anyone has heard of this.
04-10-2015, 10:38 PM
#6
Rennlist Member
Thread Starter
From what I see, the only difference is throttle body and a more free flowing exhaust. I have no cats and and AWE mufflers. If I get a new throttle body, looks like the GT3 software will work fine.
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04-10-2015, 11:32 PM
#8
Rennlist Member
You're ignoring what previous posters have said - GT3 has a completely different engine and a different ECU. I wouldn't "bastardize" the ECU - why not buy a tune specific to your engine, e.g. Softronics or others?
04-10-2015, 11:53 PM
#9
Rennlist Member
Thread Starter
I have not found much more that this......
So what changes did it make? At the intake side, it increased the diameter of throttle butterfly from 76mm to 82mm. It also added a new resonance type variable intake manifold (previously called Varioram) to optimize torque across a wider band. At the exhaust side, it employs larger volume silencers to reduce back pressure. At the valvetrain, it increased the valve lift by 0.4mm and extended the variation range of the Variocam system from 45˚ to 52˚. In the combustion chambers, the compression ratio is lifted from 11.7 to 12.0:1. In the reciprocating parts, the conn-rods are lengthened to reduce thrust angle, hence wasting less energy. The pistons become shorter and lighter. All these put together, the new GT3 engine becomes even more revvy and powerful than ever. It produces 415 horsepower at 7600 rpm, which translate to an astonishing 115 horsepower per litre, even higher than Ferrari F430 (114 hp per litre) !! maximum torque now increases to 299 lbft at 5500 rpm. Max rev is lifted to 8400 rpm, almost like a touring race car.
04-11-2015, 02:48 AM
#11
Well, I have not found much info that the engine is that much different with the exception of the exhaust and a few other mods. Nothing major. This is a pretty well respected tuner and he is just asking if I want to try it. He has done it on other 3.6 motors and the most recent was on one that was dropped into a Boxster that is a track car. Just exploring and trying to gauge the risk and if anyone has done or heard of this before.
I have not found much more that this......
So what changes did it make? At the intake side, it increased the diameter of throttle butterfly from 76mm to 82mm. It also added a new resonance type variable intake manifold (previously called Varioram) to optimize torque across a wider band. At the exhaust side, it employs larger volume silencers to reduce back pressure. At the valvetrain, it increased the valve lift by 0.4mm and extended the variation range of the Variocam system from 45˚ to 52˚. In the combustion chambers, the compression ratio is lifted from 11.7 to 12.0:1. In the reciprocating parts, the conn-rods are lengthened to reduce thrust angle, hence wasting less energy. The pistons become shorter and lighter. All these put together, the new GT3 engine becomes even more revvy and powerful than ever. It produces 415 horsepower at 7600 rpm, which translate to an astonishing 115 horsepower per litre, even higher than Ferrari F430 (114 hp per litre) !! maximum torque now increases to 299 lbft at 5500 rpm. Max rev is lifted to 8400 rpm, almost like a touring race car.
I have not found much more that this......
So what changes did it make? At the intake side, it increased the diameter of throttle butterfly from 76mm to 82mm. It also added a new resonance type variable intake manifold (previously called Varioram) to optimize torque across a wider band. At the exhaust side, it employs larger volume silencers to reduce back pressure. At the valvetrain, it increased the valve lift by 0.4mm and extended the variation range of the Variocam system from 45˚ to 52˚. In the combustion chambers, the compression ratio is lifted from 11.7 to 12.0:1. In the reciprocating parts, the conn-rods are lengthened to reduce thrust angle, hence wasting less energy. The pistons become shorter and lighter. All these put together, the new GT3 engine becomes even more revvy and powerful than ever. It produces 415 horsepower at 7600 rpm, which translate to an astonishing 115 horsepower per litre, even higher than Ferrari F430 (114 hp per litre) !! maximum torque now increases to 299 lbft at 5500 rpm. Max rev is lifted to 8400 rpm, almost like a touring race car.
As stated before the GT3 Engine is a Mezger motor a derivative of the race breed GT1 motor ,,there are very few components if any shared on the Carrera and Boxster powerplants with the GT3
The GT3 engine is not a tuned carrera engine ,it is completely a different engine build for racing with titanium internals and dry sump lubrication,,,,and a lubricated IMS bearing to avoid that common failure on M96 and M97 engines..
I fear your carrera engine will become..............
04-11-2015, 10:21 AM
#12
Rennlist Member
Well, I have not found much info that the engine is that much different with the exception of the exhaust and a few other mods. Nothing major. This is a pretty well respected tuner and he is just asking if I want to try it. He has done it on other 3.6 motors and the most recent was on one that was dropped into a Boxster that is a track car. Just exploring and trying to gauge the risk and if anyone has done or heard of this before.
I have not found much more that this......
So what changes did it make? At the intake side, it increased the diameter of throttle butterfly from 76mm to 82mm. It also added a new resonance type variable intake manifold (previously called Varioram) to optimize torque across a wider band. At the exhaust side, it employs larger volume silencers to reduce back pressure. At the valvetrain, it increased the valve lift by 0.4mm and extended the variation range of the Variocam system from 45˚ to 52˚. In the combustion chambers, the compression ratio is lifted from 11.7 to 12.0:1. In the reciprocating parts, the conn-rods are lengthened to reduce thrust angle, hence wasting less energy. The pistons become shorter and lighter. All these put together, the new GT3 engine becomes even more revvy and powerful than ever. It produces 415 horsepower at 7600 rpm, which translate to an astonishing 115 horsepower per litre, even higher than Ferrari F430 (114 hp per litre) !! maximum torque now increases to 299 lbft at 5500 rpm. Max rev is lifted to 8400 rpm, almost like a touring race car.
I have not found much more that this......
So what changes did it make? At the intake side, it increased the diameter of throttle butterfly from 76mm to 82mm. It also added a new resonance type variable intake manifold (previously called Varioram) to optimize torque across a wider band. At the exhaust side, it employs larger volume silencers to reduce back pressure. At the valvetrain, it increased the valve lift by 0.4mm and extended the variation range of the Variocam system from 45˚ to 52˚. In the combustion chambers, the compression ratio is lifted from 11.7 to 12.0:1. In the reciprocating parts, the conn-rods are lengthened to reduce thrust angle, hence wasting less energy. The pistons become shorter and lighter. All these put together, the new GT3 engine becomes even more revvy and powerful than ever. It produces 415 horsepower at 7600 rpm, which translate to an astonishing 115 horsepower per litre, even higher than Ferrari F430 (114 hp per litre) !! maximum torque now increases to 299 lbft at 5500 rpm. Max rev is lifted to 8400 rpm, almost like a touring race car.
04-11-2015, 12:32 PM
#13
04-11-2015, 01:35 PM
#14
As stated before the GT3 Engine is a Mezger motor a derivative of the race breed GT1 motor ,,there are very few components if any shared on the Carrera and Boxster powerplants with the GT3
The GT3 engine is not a tuned carrera engine ,it is completely a different engine build for racing with titanium internals and dry sump lubrication,,,,and a lubricated IMS bearing to avoid that common failure on M96 and M97 engines..
I fear your carrera engine will become..............
The GT3 engine is not a tuned carrera engine ,it is completely a different engine build for racing with titanium internals and dry sump lubrication,,,,and a lubricated IMS bearing to avoid that common failure on M96 and M97 engines..
I fear your carrera engine will become..............
04-11-2015, 04:41 PM
#15
Rennlist Member
Thread Starter
Thanks for the input. I will be going with a basic 997 3.6 tune. Not looking for max power anyhow. Just need something for my cat delete and my CAI.