Good HP PER $$ Setups

e30 Benefits

- significantly reduced Feedback Knock Correction (FBKC) 

- significantly reduced Fine Learning Knock Correction (FLKC)

- stop 99.99% of DAM drops

- drastically smoother power delivery

- decrease Exhaust Gas Temperatures (EGT's) by 200-400 degrees over the whole powerband

This setup will make  280-310 tq, 280-310 whp.  Broad power ranges are used due to differences in elevation, temperature, vehicle mileage, wheel/tire weights/sizes, etc.  

e30 OTS mapping or full mapping available at the links below.  The difference between the two products is thoroughly gone over in the product description of the OTS map.  

e30 OTS Map - https://phatbottituning.com/e-toons/ols/products/2015-wrx-stage1-ots

e30 Full E-TOON - https://phatbottituning.com/store/ols/products/2015-wrx-e30

This is a nice simple setup.  These mods address the major downfalls of the car and will greatly reduce the cruise knock and make the boost control better for overall smoother power delivery.  

This setup will make 260-280 tq and 240-260 whp.

Same setup as above with DW300c and Cobb Flex Fuel Kit.  You will be required to mix ethanol and pump gas to reach the desired ethanol content of e60.  This is due to limitations of the stock high pressure fuel pump.    

Cobb Fuel Pressure Sensor Kit (part # 315650 ) is not a requirement but is nice to have to be able to monitor the low pressure fuel pump pressure.  This sensor is essential in troubleshooting fueling issues.   Not all fuel pressure issue will show up in the high pressure fuel pump pressure data.  The low pressure can still drop and the high pressure can look fine.

This setup will make around 300-325 tq and 300-325 hp on e60.  

The stock intercoolers on these cars is simply not good.  The intercooler and exhauast work in conjunction with each other.  If you free up the exhaust, but leave the stock intercooler, the charge temps will still be high and the car will still be knock prone.  If you change the intercooler, but leave the exhaust stock, the charge temps will be lower but the exhaust will be plugged up creating higher back pressure and hotter exhaust gas temps.  The exhaust and intercooler really need to be done at the same time to see maximum benefit. 

The Grimmspeed TMIC may be replaced with a Process West Verticooler, Garrett TMIC, PRL FMIC or ETS FMIC.  For the ETS FMIC get the 4 inch core and this gasket to put in place of the paper gasket on the turbo outlet flange  Mr. Gasket #738G    https://www.jegs.com/i/Mr-Gasket/720/738G/10002/-1 

This setup will make around 300-320 tq and 280-300 whp.

Same setup as above with DW300c and Cobb Flex Fuel Kit.    You will be required to mix ethanol and pump gas to reach the desired ethanol content of e60.  This is due to limitations of the stock high pressure fuel pump.  

Cobb Fuel Pressure Sensor Kit (part # 315650 ) is not a requirement but is nice to have to be able to monitor the low pressure fuel pump pressure.  This sensor is essential in troubleshooting fueling issues.   Not all fuel pressure issue will show up in the high pressure fuel pump pressure data.  The low pressure can still drop and the high pressure can look fine. 

This will allow you to run straight e85 and not have to mix down to e60.  The car will make the same power, just avoid mixing.  IMO, it is not worth the $1000 for the convenience of not having to mix down to e60.  The car will make the same power on e85 as it does on e60 and if you live east of Arizona, your ethanol content drops down to e52-e70 in the winter anyway.  So you can't even run full e85 for half the year.  

So if you live east of Arizona, you need to take into consideration the time of year you buy and tune for this hpfp.  You need to ensure that your state/city are out of the winter month ethanol and that you can actually get full e85.  Basically no point in getting tuned for this hpfp in the winter since the ethanol content won't get over e70.  

Cobb Fuel Pressure Sensor Kit (part # 315650 ) is not a requirement but is nice to have to be able to monitor the low pressure fuel pump pressure.  This sensor is essential in troubleshooting fueling issues.   Not all fuel pressure issue will show up in the high pressure fuel pump pressure data.  The low pressure can still drop and the high pressure can look fine. 

These really aren't necessary on stock turbo setups.  Especially the external wastegates.