RudyH
Go Kart Champion
- Location
- Kitchener, ON
What one needs to be reminded too, it's not the size of turbo, but rather it's usage.
Case and point MK8 R, it seems to have the magic you are looking for in the mid range where the IS38 lacks, while maintaining the top end. If you can, wait a bit to see what people come back with once it's in more people's hands and maybe there are more clues. How much is it the new Conti turbo, and how much is the revisions to the engine on the exhaust side, to allow for the spool (I thought I read somewhere)
As mentioned there is the EQT Vortex, where I believe purple is IS38 (assuming 91 octane), green is EQT Vortex (91 octane) and blue is EQT Vortex (E30)
If you needed to do a quick read, that 416 ft-lbs @ 3150 RPM for the stock IS38 is the best one can do to get the lower end torque you are looking for to make things more responsive. Reviewing the graphs, it makes it more easier to decipher as a value of torque and an unequal value of RPM might be hard to visualize quickly. Maybe do some additional research on the IS20 hybrid, which will likely get what you are looking for, but you need to figure out how to get a IS38 baseline against other turbos on the market (have fun!)
Beware though, the bottom end has given other people issues with the 6MT, where the they have experienced thrust bearing failures. I feel like the more torque you put down low, the faster you are going to experience the same issue and eventually kill the engine. I have to agree with you, for a car that you aren't interested in running on the 1/4 mile, having more usable power band is fun but more importantly forgiving of driver mistakes. I feel like maybe even a proper ECU tune would be helpful, and teaching yourself how to keep the turbo spinning when you are slowing down, along with being in the right gear.
Case and point MK8 R, it seems to have the magic you are looking for in the mid range where the IS38 lacks, while maintaining the top end. If you can, wait a bit to see what people come back with once it's in more people's hands and maybe there are more clues. How much is it the new Conti turbo, and how much is the revisions to the engine on the exhaust side, to allow for the spool (I thought I read somewhere)
As mentioned there is the EQT Vortex, where I believe purple is IS38 (assuming 91 octane), green is EQT Vortex (91 octane) and blue is EQT Vortex (E30)
If you needed to do a quick read, that 416 ft-lbs @ 3150 RPM for the stock IS38 is the best one can do to get the lower end torque you are looking for to make things more responsive. Reviewing the graphs, it makes it more easier to decipher as a value of torque and an unequal value of RPM might be hard to visualize quickly. Maybe do some additional research on the IS20 hybrid, which will likely get what you are looking for, but you need to figure out how to get a IS38 baseline against other turbos on the market (have fun!)
Beware though, the bottom end has given other people issues with the 6MT, where the they have experienced thrust bearing failures. I feel like the more torque you put down low, the faster you are going to experience the same issue and eventually kill the engine. I have to agree with you, for a car that you aren't interested in running on the 1/4 mile, having more usable power band is fun but more importantly forgiving of driver mistakes. I feel like maybe even a proper ECU tune would be helpful, and teaching yourself how to keep the turbo spinning when you are slowing down, along with being in the right gear.
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