Turbo VVVVVRRRROOMMM (or not, I like my MPG).

[cRiPpLe_rOoStEr]

Originally Posted by Baltothewolf

I had initially planned to supercharge with an AMR500 but, there was some added complexity that made the project not worth it.

A friend once told me he prefered superchargers instead of a turbo because he considered it less complex than turbocharging.

I have a AEM FI/C-6 with a custom Boomslang Harness that will be controlling Toyota camry injectors (255cc vs 145 stock) to keep me from running lean, or stressing the stock ones over 80% duty cycle. The injectors are the exact physical size as OEM Insight ones and are plug and play to the OEM harness. It will also allow me to fool the stock O2 sensor and MAP sensor so the stock ECU isn't fighting me to control fuel under boost, but runs normally under non-boost conditions.

In my country it used to be more usual to add an extra fuel injector to enrich the air/fuel ratio under boost, in a way that could be considered analogue to that water+methanol injection. Just not sure if that would allow for a leaner burn.

[Baltothewolf]

Let's just say... I 'have a friend' that will ignore anything he sees under the hood, as long as there isn't any check engine codes.

Anyway, more progress today! My little brother and I pulled out my transmission. (huge shout out to him, I have a messed up back and he handled the trans for me!). I'm going to be getting a rebuilt transmission from a popular guy (and my former boss) sometime this week. I'll also be swapping the clutch out for a Spec stage 1 clutch. I plan on building a spare engine I have in the garage with forged pistons and rods this summer, and then running 15-20lbs of boost, so I need a sticker clutch. Besides mine chatters really badly and since I'm in there, I might as well replace it.

[Baltothewolf]

Originally Posted by cRiPpLe_rOoStEr

A friend once told me he prefered superchargers instead of a turbo because he considered it less complex than turbocharging.




In my country it used to be more usual to add an extra fuel injector to enrich the air/fuel ratio under boost, in a way that could be considered analogue to that water+methanol injection. Just not sure if that would allow for a leaner burn.

I prefer superchargers myself, but there simply is no room to put one under the good easily. If I removed the A/C, it would be easy, but I enjoy my comfort.

Your second paragraph confuses me, and I don't understand it, sorry .

[gumby79]

Originally Posted by cRiPpLe_rOoStEr

...
In my country it used to be more usual to add an extra fuel injector to enrich the air/fuel ratio under boost, in a way that could be considered analogue to that water+methanol injection. Just not sure if that would allow for a leaner burn.

Your second paragraph confuses me, and I don't understand it, sorry .

I think he is talking about an injector added before/after the throttle body, like throttle body injection. This extra injector only compensateing for boost allowing for stock size injectors. You could use a pulse-width modulator signaled by boost pressure ,cross-referenced with O2. This would lend it self well to lean burn mods .

[Baltothewolf]

Originally Posted by gumby79

I think he is talking about an injector added before/after the throttle body, like throttle body injection. This extra injector only compensateing for boost allowing for stock size injectors. You could use a pulse-width modulator signaled by boost pressure ,cross-referenced with O2. This would lend it self well to lean burn mods .

Oh. Well, I ran a 4th injector on my last turbo insight and I hated it. I always feared cylinder #1 was getting most of the fuel and #3 was lean, but there was no way to prove it. Also, the computer for controlling the injector is 300$, while the AEM piggyback is 400. Definitely worth the extra cash IMO.

[cRiPpLe_rOoStEr]

Originally Posted by Baltothewolf

Oh. Well, I ran a 4th injector on my last turbo insight and I hated it. I always feared cylinder #1 was getting most of the fuel and #3 was lean, but there was no way to prove it.

I'm not so sure at which extent it would happen, but it seems to be a justifiable concern.

[Baltothewolf]

I took my transmission down to the Insight wizard (and my former mentor) Scott today! He pulled my transmission apart and noticed wear on 5th, 3rd and I believe second gear.

[Baltothewolf]

Finally a real update! I took the car out for a spin today and WOW! The new clutch is better than any stock clutch I have ever felt. Also the new injectors are working great. My fuel trims are +/-5% (this is Normal).

So pros/cons of the Spec clutch.

Pro's:
Lighter peddle pressure than stock.
No bouncing if you drop the clutch too fast.
Will hold about 50% more power than stock.
It's blue.

Cons:
It's twice as expensive as a stock clutch (I paid 401$ for mine)
It's less forgiving.

[What do I mean by, 'less forgiving'] Well it means when it grabs, it grabs, you can't really 'slip' it to help you get going. The overall pedal travel is nice, and I had mine running on gas only (clutch switch enabled) so yea. If I had the electric motor enabled it would have probably been fine, but unlike the stock clutch, a gas only Insight doesn't make enough power down low to slip the clutch.