Like @INTMD8 stated not much left on the table unless you do other mods then you get into reliability issues. Folks that did get into the chip by nibbling at the ends never got anywhere except by changing the sensor inputs, marvelous darling LOL Anyway here are what 355, 5.2 ecu maps from my archives for future reference if any of you youngens with brains left want to take it on. I totally moved on from this. Also easiest way in to the chip is to totally remove it from the board, get a chip reader with adapter for the nice big chip, Instead of soldering the chip back in I used a plug-in adapter so I can pull it in out to do adjustments each time. you can also use a "moats device" to monitor the input live but I only had that working on the 2.7 348 ecus Maps and modded chip setup Again I left this long ago, have no interest as it's a dead to me LOL 5.2 355 maps https://www.ferrarichat.com/forum/threads/355-5-2-ecu-map-table-locations.580498/ 2.7 355 maps https://www.ferrarichat.com/forum/threads/348-2-7-ecu-maps-tables.580497/ ------------------------------- Image Unavailable, Please Login Image Unavailable, Please Login
The offering from Biesse Racing "looks" attractive, but that statement is based on nothing. (marketing, voodoo beliefs, etc....LOL) I spoke with them this morning and they are going to respond via email with more info about what they can offer. The tech did not think the flasher delivery would work for the 355, but he and the owner were going to confer and get back to be. Very happy with my car as is, but would be additionally thrilled to have a little more low end and mid range power. Who wouldn't? For 500., Biesse claims 18 HP and 15 ft pounds. Seems like a fair trade....??? However, there is no dyno chart attached?? While those gains are modest, I think they would be noticeable? What specific questions should I be asking?
Biesse Racing is also in Italy. I'm going to assume their fuel grades are generally better than U.S. In CA, 91 is the best we got unless you really go out of your way to get premium fuel. If their fuel is better, they can be a bit more aggressive. But don't expect high flying numbers from an NA car. 10-15 rwhp gains would be considered exceptional. The best 355 mod you can do is get a 2.7 355
Agreed. That is about what Biesse is claiming; not a huge difference, but I am guessing it will be felt??
^ There are people who feel "gains" with a 10hp loss. Placebo effect is real. If you're really serious about knowing whether or not your money was well spent, go make 2-3 runs on a local chassis dyno before and after. Monitor air fuel (and timing if you can)
Can they raise the limiter to 9k? How much are they asking for their tune? Generally I can feel improved response and midrange gains. If the gains are all up top, it becomes harder for me to feel it. I prefer gains in response/low/mid range over up top. If they can raise the limiter to 9k, even if no gains felt up top, the extra 500 rpm will make it that much more fun .
I have a 5.2. Will ask about the rev limiter. There must be some additional questions I should ask? Not my area of expertise, so I am shooting in the dark.
Many 95's did run rich. A guy in town had a 95, two serial numbers from mine, both built in April 94. We could not start our cars, let them run for a minute, and then shut off without fouling plugs. I always let the car run until the water temp was 180 degrees before shutting off. Lake Forrest Ferrari told me they could not start most early 95's in their shop without fouling plugs unless they let the car get to temp. We ran a different plug than 96 and up. The guy who dyno tuned my car, said he took a ton of fuel out below 4000rpm and could take more out at higher rpm's but was afraid of running too lean. He also advanced the ignition timing 6 degrees. The car was so much more responsive and had so much more low end power after that and I never fouled a plug for 10 years after. I tried a chip 15 years ago and it did nothing other than raising the rpm limit. The car has so much more potential than stock. Ferrari did leave a lot on the table. With piggy back computer, small diameter headers, Goth's one off exhaust, GruppeM, we gained @4o-50rwhp. I think there was a guy named Atul on Fchat that did roughly the same thing with the same results. Car becomes totally different. We both were getting around 360RWHP on a dynojet and I got 327rwhp on a Mustang dyno and only ran it to 7200rpm. Most stock F355 on a Mustang dyno run in the 280rwhp range. Added a challenge suspension with big Stoptech brakes and Challenge wheels with everything except Challenge springs and you have a F355 Stradale. A chip is not going to get you much if anything
I don't ever cold start my car and shut it down after a minute so not sure on that comparison. That would be a cold start enrichment adjustment. I was just speaking to wide open throttle air fuel. (as far as not seeing a dyno sheet of a stock F355 being excessively rich) Didn't think you or Atul ran your cars on a Dynojet, or is that just a guess based on his Dynapack and your Mustang dyno results?
Yes I ran on a Mustang dyno which is 10% lower than dynojet readings so it would be comporable to Atul dynapack. I used dynojet comparison because most people use it. Fuel taking out was the whole fuel map below 4000rpm Not just cold start.
There's no reliable percentage difference between a Mustang and a Dynojet. It depends on how the Mustang dyno is set up. Only way to know Dynojet numbers is to run it on one. Understood what you did with your fueling, just haven't seen any F355 dyno graphs showing rich air fuel at wide open throttle.
If the 355 is running rich low to mid-range, then pull out the fuel would improve response/power in those ranges, which is what I think the 355 needs.
Dont know about other 355's. Mine was a very early car. All I can tell you is what my experience was. Removing fuel, increasing timing, good exhaust transformed the car. It was fast. Downside to me is the manual trans. You loose a lot of momentum shifting. My PDK Carrera is .5 sec faster to 60 than one with a manual.
PDK is certainly faster. I just love manual trans. For me, no speed delta would make up for the loss of interaction.
https://www.ferrarichat.com/forum/threads/cs-market.277227/page-1166 Look at the track times (with unbiased driving video footage) I posted in the CS market thread . Manual 355/360 were hitting better times than their newer, more powerful F1 siblings. Go figure . It feels good to nail the shifts and rev matches.
Motec told me they can promise more power with an entire management system and MAF delete. Cost is around $35,000.
I'll show you guys something that might save you some time and money. There are probably a handful of Toda-Spec 355's in Japan. I have been following one car in particular for close to 10 years. I've followed his build along with his Suzuka Circuit runs on YouTube. His car began life as a standard 5.2 car. It is a Toda "Take Spec" 5.2 engine build, with Toda 4-1 headers, and a Motec engine management and tune. We're talking $50-$60k put in at the time. No expense sparred type of build. https://www.toda-racing.co.jp/en/product/piston/f129b-strokerkit.html Here's his Blog. https://minkara.carview.co.jp/userid/196294/blog/p3/ He started his blogging journey after the Toda-spec engine was built. His Suzuka track times for years were hovering around 2 min 30 to 32 secs. As he gradually built his car "challenge-like," such as light-weight buckets seats, light-weight challenge front and rear bumpers, a rear wing, Ito Racing muffler, upgraded anti-roll bars, front lip (more front grip), challenge wheels, Stoptech brakes, and I think Aragosta dampers/springs, he was hovering between 2 min 27 to 29 secs. You can see the progression in his Youtube history. In 2016 he started playing around with different street tires and sizes and simply improved his driving skills. He was finally able to break into the 26's. That's where I see he last left off. Then I believe he started tracking his newly acquired GT4. He never broke his 2 min 26 sec lap record. Considering all the work and effort he put it, he most likely felt that was the peak of the car's performance. Now here is a 355 Challenge car. 2.7 engine setup. STOCK headers and Y-pipe. Stock challenge Ecu. The same Ito Racing muffler which happens to weigh a whopping 50 lbs (I verified), which is 35 lbs more than the challenge muffler. Everything on his car is standard 355 Challenge spec. Suzuka Circuit time is 2 min 25 secs. Go figure . . Moral of the story.... start with a 2.7 F355 Berlinetta .
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Image Unavailable, Please Login Image Unavailable, Please Login Second moral of the story: Header wraps aren't that great .
