can anyone change these chips to retard timing some and use larger injectors?
were going to fab up exhaust to fit two 52mm garrett turbos. maybe run 5-7 psi. want to retard the timing slightly
Just go aftermarket engine management. The time it would take to properly calibrate two 2.7 ecu's would probably pay for it and you would have a better end result. I'm going to do this and I'm staying naturally aspirated.
thinking about it but wondering which standalone would be the way to go and which could use many of the stock sensors?
I for one would like to hear about your potential twin turbo set up, and your progress. You will always get those who are against it, I am not. Sounds interesting, please keep the thread updated when you start the project.
there was a vendor who sold them, I think a few cars lost motors. It always tough to add turbos to non turbo cars your usually limited to small boost and small turbos like 2 TD04's. Probably better off with one AVO450 they will spool faster than a GT30. Either way lets see it go, good luck! Its always the Aussies or Kiwis too it seems. http://www.nizpro.com.au/ferarri-f355-spyder-twin-turbo-with-motec-m800/ There are a few post out here, I'll leave you to take advantage of search for the rest. https://www.ferrarichat.com/forum/threads/f355-twin-turbo-now-in-us-eu.42376/
For turbos, I'd highly recommend going with an aftermarket setup. You're going to want to upgrade to speed density control as opposed to MAF air control with varying pressure and varying temperature air. You're also going to want aftermarket to change your injectors (it'll need more fuel) and to be able to handle a rich running condition for boost and to lower cylinder temps slightly. As such you're going to be adding 4 sensors 1. Air Temp (replace MAF sensor with a straight pipe and a bung for Air Temp Sensor) 2. Air Pressure / Boost (sensor in ECU) 3. Knock sensor (not sure if the 2.7 has one... would attach to block) 4. Wideband O2 sensor (in existing O2 sensor locations) Reuse Existing Sensors: 1. Crank position sensor (only need 1 out of the 2) 2. Cam Sensor 3. Throttle position sensor 4. Water temp ECU: Haltech or MS3Pro. There are a few others, but I think these are the most supported by tuning shops and people with dynos. All the new ones should be able to learn fuel trims by just driving around if you have a driveable basemap and safe ignition tuning. Keep the thread posted. Don't try to cheap out. The F355 was not meant for turbos, you're going to need all the control (and debugging) you can get.
I have seen 355 5.2 intake set up configured for 348's as such below, similar to the 348 turbo set up I posted the video to. Seems that's a starring point. I saw F40 turbo piping and parts in the classifieds a few weeks ago while scrolling through. Image Unavailable, Please Login
nice guys, keep the info coming. as it is currently I am onto a motec m150. just waiting for more details. Ill likely get that done first and tune it as is NA. and then work towards customizing the turbo setup
Yeah, I have googled some. saw the 610 WHP 348, but I do not want to go that far. I have two garrett 52 trims sitting on the shelf and a buddy willing to fab up the hot side for me. So this will be interesting to see what we can accomplish.
The piping is pretty straight forward the inter cooler would require some thought, I'd use Tial BOV's. Definitely look forward to it, even if you did no EMS you could probably run 6 pounds boost for 50whp or so. Just run Torco in the tank or use VP fuels.
I was actually thinking of doing 5-6 psi without a tune and maybe adding methanol injection. Could even use a FMU to increase the fuel pressure at a rate of anywhere from 3 to 1 to 12 to 1. However the issue with that is IDK if the stock pump would support it
Pump is fine there are 2, just add adjustable fpr's and bump the pressure. You may need injectors but I suspect more pressure "may" do it at that low boost depending on the stock flow rate that I don't know.
Page 47, few threads out there too https://www.slideshare.net/MoisesRomeroRodriguez/ferrari-348-ts-english
6psi with full timing and meth I suspect you would be blown up in short order. FMU's worked on Mustangs in the 80's but things become a bit more finicky at 11-1 compression and 8000+rpm. I wouldn't attempt forced induction without changing the engine management but that's just my opinion.
Check with Bradan - one of the sponsors on here. He built his own dual turbo 355. Seeing that car was one of the reasons I started using his shop.
