Search found 1521 matches

by mituc
September 21st, 2026, 9:55 am
Forum: NC2/3
Topic: How to tune a GRW 1.8 header?
Replies: 5
Views: 118

Re: How to tune a GRW 1.8 header?

Having the VE table spot on may help in calculating better the fuel trims, but on ECUs with MAF all you have to do is to get the MAF calibration right. Let's take an extreme example of a head or cam combination that will lower your VE from 0.9 to 0.8 in a certain rpm/load area. That's a 12% variatio...
by mituc
September 15th, 2026, 11:47 pm
Forum: Gen 2 Tuning
Topic: Crackle and Pop tune with Catless DP
Replies: 3
Views: 15740

Re: Crackle and Pop tune with Catless DP

You can use a base crackle&pops tune from the library. It's even better if you have upgraded HPFP internals, but no problem without.
by mituc
September 4th, 2026, 4:03 am
Forum: Professional Tuners
Topic: Help me understand the capabilities of the stock 2.5L engine.
Replies: 10
Views: 1543

Re: Help me understand the capabilities of the stock 2.5L engine.

It's not glass and I'm not concerned about them breaking after demanding too much power from them. And they can make a lot of power well past the point on a MX5 you will need a lot of other mods to make it work. I am talking strictly from a longevity/reliability perspective. Which is also the reason...
by mituc
September 4th, 2026, 12:58 am
Forum: Professional Tuners
Topic: Help me understand the capabilities of the stock 2.5L engine.
Replies: 10
Views: 1543

Re: Help me understand the capabilities of the stock 2.5L engine.

Mazdaspeed people use the stock 2.5L bottom end with the stock 2.3L DISI head on it as a cheaper solution to replacing a blown up motor. Gap the rings for boost and most people have no issues running 1 bar or a little higher boost. Yes, people do that, but those engines do not last. If you want to ...
by mituc
September 3rd, 2026, 3:15 am
Forum: Professional Tuners
Topic: Help me understand the capabilities of the stock 2.5L engine.
Replies: 10
Views: 1543

Re: Help me understand the capabilities of the stock 2.5L engine.

Hello, Mituk. I can't believe how hard must be to copy&paste someone's name when replying :) You mentioned that the engine "might not last long" as it is—could you elaborate on exactly what you meant by that, even with 0.5 bar of boost? Perhaps I should lower the boost pressure? As fo...
by mituc
September 2nd, 2026, 6:20 am
Forum: Professional Tuners
Topic: Help me understand the capabilities of the stock 2.5L engine.
Replies: 10
Views: 1543

Re: Help me understand the capabilities of the stock 2.5L engine.

Leave it at 0.5-0.6bar. The very long stroke and large bore of the 2.5 engine are a liability in the stock form of this engine, The engine itself would take a lot more boost in its stock form (1.1-1.2bar as long as you do not run out of injector) but it may not last. Actually it may not last very lo...
by mituc
September 1st, 2026, 4:37 am
Forum: MAZDASPEED3/Mazda 3 MPS Tuning
Topic: Regarding the Removal of Speed Limits
Replies: 7
Views: 10991

Re: Regarding the Removal of Speed Limits

I swapped it out for the Grimspeed 3-port model, but now it’s acting like it’s gasping for air. 2. go to a 3-port EBCS approach and get the car tuned properly for it (I can give you some insights on that) to get rid of the potential tired EBCS and rotted lines. So this: ^^ !. Looking at the log you...
by mituc
August 28th, 2026, 12:33 pm
Forum: ND
Topic: MX-5 ND Supercharged Problem
Replies: 2
Views: 37296

Re: MX-5 ND Supercharged Problem

My biggest Problem here is, that After Talking to the Tech Support, and They Told me to increase the Numbers in the neutral Torque Map it would Affekt Anything. Can you explain me the the Other Limitation tables. I am Working now since 8 hours on that Problem. Post a log with the hesitation happeni...
by mituc
July 4th, 2026, 11:09 am
Forum: NC1
Topic: Global Open Loop AFR Override info
Replies: 4
Views: 7983

Re: Global Open Loop AFR Override info

1. What do you actually want to override and why? there are AFR targets, you can use those. 2. load above 1 means some form of forced induction. In NA form load of 1 and slightly above (maybe 3% max) are very rare. 3. I honestly can't understand the context of the question. However, since for the NC...
by mituc
June 30th, 2026, 4:24 pm
Forum: NC2/3
Topic: P0101 after larger throttle body install
Replies: 17
Views: 17945

Re: P0101 after larger throttle body install

The fuel trims are not problematic at all. So probably something happened before this freezeframe thing.