Performance tweaks (1 Viewer)

[CreeperSleeper]

Hmmm. Do you know what other problem I would have if my car accelerates slowly, noticeably slower with the EGR unhooked then takes off once I hit around 2100 RPM? I had read that that is a sign the EGR is dissconnected.

did you block off the hose?

 

[Mirage]

X2 on the timing advance, tweak it as far as you can... a little spark knock won't hurt it, but excessive knock will kill it.
In my 94 I advanced it from the factory 3 degrees to about 7 or 8 with just a very slight knock at part throttle occasionally.

2nd tip is to disable the EGR...pull a vacuum hose off it. This will give you a slight improvement in throttle response and the engine will run a tad smoother. Hook it back up for emissions testing.
The EGR system is strictly there to lower NOX by dumping exhaust gas back into the intake to lower combustion temps.
Your engine will run better without it.


these 2 things together will give you a noticeable improvement and they're free!



.

Do you need to cap th ehose off? or just disconnect it?

thanks

 

[ThePookieBear]

did you block off the hose?

Ahhh yes... that would be a no... And now I feel dumb. I'll have to try that.

 

[jlg32281]

Go turbo! YouTube - turbo landcruiser

 

[onewhippedpuppy]

Ahhh yes... that would be a no... And now I feel dumb. I'll have to try that.

You're in KS and have a 3FE.......just de-smog it! I plan to do so in the very near future.

 

[jonheld]

And yes I searched, but too many irrelevant results.

I don't feel the love.
https://forum.ih8mud.com/80-series-tech/270758-general-3fe-tune-up-info.html

 

[blzrfn]

I don't feel the love.
https://forum.ih8mud.com/80-series-tech/270758-general-3fe-tune-up-info.html

I love your info Jon! I have your website bookmarked and your tune-up sheet printed. Keep sharing your 3FE wisdom!

 

[firetruck41]

Go Blazers! Finally a fan again, haven't been since Drexler, Ainge, Kersey, Porter...

 

[lt1fire]

For the 3Fe there aren't many options.
Do a custom exhaust with hi flow cats and muffler/s
Clean and bore the throttle body
have the injectors balanced
Synthetics in everything
De-smog
Gears
Advance the timing

There are some that have turbo'd them

 

[91Cruizer]

Gotta love the 3fe power. I was fully loaded driving up the 5 out of Bakersfield @ 45-50mph full throttle.

 

[Eicca]

I'll look into disconnecting my EGR and some of those other tips. Thanks for all your help.

 

[RockDoc]

If you want a huge bump for free....... adjust your transmission throttle cable so it has only slight slack with the throttle plate closed, then adjust from there to your liking. The truck will will feel a ton better when it actually revs into the powerband before upshifting.

 

[onewhippedpuppy]

Desmog is absolutely worth the trouble. It's like an entirely different motor now.