Tuning by pulley

Posted by: @dev

  It has taken me a long time just getting use to the 2ZZ. The 1ZZ and gearing is better suited for the Spyder even though its slower. Most only look at straight line performance fun and not so much what it does in the turns as I always felt I was in-between two gears. Its very easy to bog a 2ZZ and miss your mark however you can use the longer legs to your advantage in terms of braking but its like murdering your engine at high revs before the turn and then trying to catch it in lift as you exit.  But there is nothing like going into 3rd gear and stretching it out because it keeps building and building though lift like a second stage booster. The sounds its makes is just intoxicating and when they made the reference in Ford vs Ferrari it it home.  

Posted by: @marsrock7

Posted by: @dev

  It has taken me a long time just getting use to the 2ZZ. The 1ZZ and gearing is better suited for the Spyder even though its slower. Most only look at straight line performance fun and not so much what it does in the turns as I always felt I was in-between two gears. Its very easy to bog a 2ZZ and miss your mark however you can use the longer legs to your advantage in terms of braking but its like murdering your engine at high revs before the turn and then trying to catch it in lift as you exit.  But there is nothing like going into 3rd gear and stretching it out because it keeps building and building though lift like a second stage booster. The sounds its makes is just intoxicating and when they made the reference in Ford vs Ferrari it it home.  

I am definitely not one just looking for straight line performance. I love cornering and chose the Spyder specifically for that reason. A little more torque throughout the powerband is all I seek to not have to sustain such high revs to maximize corners.

Btw, the overrunning alternator pulley helps a fair bit with "hitting the mark" when it comes to shifting and harsh throttle inputs. Cuts down on that bogging feeling.

  I take it you mean that alternator sprocket thing right.  If so im in favor of that kind of modification because its designed by the OEM for a different application.  

 What I mean by bogging which I used incorrectly  is when you are in the wrong gear taking a turn and then stuck at low rpms after you brake and then power out with a delay in lift.  I have found that I cant do this casually with the short gearing with both the 6 speed and 2ZZ.  What I do now is try and reach near max rpms before braking and then trying to catch lift right when I exit. It feels rewarding  when that happens but if I time it wrong and miss my mark it bogs the exit power.  

Posted by: @marsrock7

 

I am definitely not one just looking for straight line performance. I love cornering and chose the Spyder specifically for that reason. A little more torque throughout the powerband is all I seek to not have to sustain such high revs to maximize corners.

Lóve Cap Weir´s MAF mod for that on my 1ZZ. No, not an engine transplant nor forced induction, but definitely more than marginal.

@dev

Yes. The overrunning alternator decoupler pulley is still one of my favorite mods to date.

Regarding cornering and exit RPMs, I'd wager a c56/c65 would help significantly. I actually like the 2zz/c56 a lot more than I expected. The only major downfall is not being able to hit lift on 1-2 shift without engine management capable of increasing rev limit and lowering the lift point. Beyond that, 2-3 and 3-4 both land in the lower range of lift assuming you take it to 8k before shifting, and 2nd gets you to 70mph. I haven't been to an autoX but believe the c56 would be superior in a tight course.

@petrus

Never did any significant driving on the 1zz but I did research the MAF mod heavily and even started to tinker with doing the same on a 2zz. Unfortunately almost all the data I collected is worthless. I noticed some inconsistencies and turned out my MAF was malfunctioning, but only slightly. Then I got an Emanage ultimate and the point was moot. The only thing I can confirm from all the testing is that scion 340cc injectors will work in a 2zz with the MAF spaced to help fuel trims line up. I had plans to try scion 370cc injectors as well, even bought them, but never got back around to it.

Have the crankshaft pulley in

Definitely nice and light!

@marsrock7

Already have the lighter, 25% slower rotating alternator pulley thus reducing the rotor kinetic mass by the same %.

Adds up.

Got it in.

Definitely noticable. Just that bit crisper, quicker gear change and blip on down shift. No, not a different car, only marginal, but still noticable.

A bit weird though; only 1 kg. less but it feels like wáy more taken off at the back. Cannot really describe it. Feels more... ´dynamic´ than the almost 20 kg off the exhaust.

All in all the engine feels now like the lighter car itself: Same car, just brisker.

Fingers crossed it will not start leaking.