Xtremefunky
Well-known member
Hey guys,
I want to show you my Ibiza and also my results with it.
The way I tune might seem minimalistic or the parts I use for it seem to be too "tiny"
or not enough in the most peoples view.
Currently, running my car with a >GTD1756VRK< from >Muchboost< for the last couple of years now (about 3-4).
Car is running fine. Im able to get about 730kg/h of airmass into the engine. With a peakpressure of about
2.6-2.8b. The VE of the engine (volumetric efficiency) while doing so is about 0.85 (stock is 0.84 | EA288 stock is about 0.8).
Im running the car with an IC which has a net measure of 600x300x100. So its indeed a large one for sure.
But the colder, the better.
4Bar Map, 2700Bar sensor, 2.75" Exhaust, 2.5" Downpipe and upgrade injectors (from CUNA). Leading to about 305HP.
With the latest upgrade part for the HPFP, I was able to push it to about 325HP with a soft 0.5L/m WMI mix,
I was able to push it to 335HP with 715Nm of torque.
My car is doing the 100-200 in 11.06s. Considering my 0.7s shift time, this is a pretty good result (sorry its 4th gearbox).
But ever since 325HP are strong numbers for a CP4.1. At some point you reach the limit of the components.
So you have to move on with different parts. But the goal is always: to use the parts with the capabilities they are build for.
And the Stock CP4.1 is able to push out about 284-305HP (depending on age and wear, as well as cetan in diesel).
With a bigger plunger, you can get it to about 325HP. So an increase of about 10%.
My greek friend, was able to pull of a (corrected) time of 10.77s 100-200 with the complete stock CP4.1 pump.
No upgrade part or 2700Bar sensor. Just 2200Bar at this point.
The only advantage he has is, due to his >GTD2060<, he can run an 1L/m 50/50wmi mixture.
His car produced on raw diesel 284HP straight from 3000-4600rpm (bet you never saw such a powerrange) and 640Nm of torque on the dyno.
But Im not stopping here. Soon I will change the turbo to an >GTD2060< as well, >CP3 R90 from MAC< and a new >downpipe from TRW< with 2.75" diameter.
My Goal is to get to about 380HP on raw diesel and 400HP with water methanol.
Torquewise: I will leave it there (~700Nm), because this seems to be enough for the stock engine internals.
Its very likely, that I will need cams for that goal. But Like I mentioned before. Those will come, when I see the need for it.
But then with springs, bolts and compression reduction as well as porting.
I will see where the journey ends leads to. Im aware that the block can go rip, but since Im in germany,
I can get an used engine for cheap, so I dont see the need to reinforce it. If it dies, it dies. (I was expecting it at the 300HP mark).
I hope you enjoy the upcomming journey and then we will see, at which figures we will end up at.
Here you have some media included. Of course not everything. But a bit.
I want to show you my Ibiza and also my results with it.
The way I tune might seem minimalistic or the parts I use for it seem to be too "tiny"
or not enough in the most peoples view.
Currently, running my car with a >GTD1756VRK< from >Muchboost< for the last couple of years now (about 3-4).
Car is running fine. Im able to get about 730kg/h of airmass into the engine. With a peakpressure of about
2.6-2.8b. The VE of the engine (volumetric efficiency) while doing so is about 0.85 (stock is 0.84 | EA288 stock is about 0.8).
Im running the car with an IC which has a net measure of 600x300x100. So its indeed a large one for sure.
But the colder, the better.
4Bar Map, 2700Bar sensor, 2.75" Exhaust, 2.5" Downpipe and upgrade injectors (from CUNA). Leading to about 305HP.
With the latest upgrade part for the HPFP, I was able to push it to about 325HP with a soft 0.5L/m WMI mix,
I was able to push it to 335HP with 715Nm of torque.
My car is doing the 100-200 in 11.06s. Considering my 0.7s shift time, this is a pretty good result (sorry its 4th gearbox).
But ever since 325HP are strong numbers for a CP4.1. At some point you reach the limit of the components.
So you have to move on with different parts. But the goal is always: to use the parts with the capabilities they are build for.
And the Stock CP4.1 is able to push out about 284-305HP (depending on age and wear, as well as cetan in diesel).
With a bigger plunger, you can get it to about 325HP. So an increase of about 10%.
My greek friend, was able to pull of a (corrected) time of 10.77s 100-200 with the complete stock CP4.1 pump.
No upgrade part or 2700Bar sensor. Just 2200Bar at this point.
The only advantage he has is, due to his >GTD2060<, he can run an 1L/m 50/50wmi mixture.
His car produced on raw diesel 284HP straight from 3000-4600rpm (bet you never saw such a powerrange) and 640Nm of torque on the dyno.
But Im not stopping here. Soon I will change the turbo to an >GTD2060< as well, >CP3 R90 from MAC< and a new >downpipe from TRW< with 2.75" diameter.
My Goal is to get to about 380HP on raw diesel and 400HP with water methanol.
Torquewise: I will leave it there (~700Nm), because this seems to be enough for the stock engine internals.
Its very likely, that I will need cams for that goal. But Like I mentioned before. Those will come, when I see the need for it.
But then with springs, bolts and compression reduction as well as porting.
I will see where the journey ends leads to. Im aware that the block can go rip, but since Im in germany,
I can get an used engine for cheap, so I dont see the need to reinforce it. If it dies, it dies. (I was expecting it at the 300HP mark).
I hope you enjoy the upcomming journey and then we will see, at which figures we will end up at.
Here you have some media included. Of course not everything. But a bit.
Last edited:
You can burn all this fuel with 2.4bar boost? What rpm you get and max boost ? (lower gears and higher gears)
