Performance Mods?

[benlaud87]

The fan shroud has to be cut per the directions provided with the daystar h3 body lift. Unless you have an electric fan

 

[digglesworth]

58Bisc did a writeup for the 3.5 in the tech library. The fan shroud has to be spun around and secured in a new position. It allows the shroud to raise up the 1" above the fan instead of pushing it up into the bottom of the fan. The only other thing I've heard is one of the hard brake lines needs a little angle taken outta one of the bends by hand. I'm not sure what's different about the alpha but I'm sure there's differences. My temps have never been above 215 and if like to keep it that way...

 

[Best4x4]

Yep I never want to see 237F on TFT/WT again on my Alpha!!

 

[derian06]

Now that I have my alpha i'm going to bring the thread back up. I'm getting 11.4 mpg with no tune, no idea when the oil was last changed, when the air filter was last changed, when the spark plugs were changed, and when the other fluids were changed. So, these are the steps i'm most likely going to take before the rancho comes in.

1. Oil Change with synthetic
2. AC Delco iridium plugs (I need the number)
3. New AFE dry air filter
4. Clean MAF and throttle body
5. Tune
6. Supersparks
7. Ported throttle body
8. Efan

Any thoughts? I'm most likely going to go through james from 355nation for the tune, efan, and ported throttle body. 500$ right? Does he make these items for the 5.3L?

Also my idle is great, but throttle response is lacking and acceleration is around 11.6 seconds from 0-60


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[Best4x4]

Good luck on the Efan.... If you wanna see engine/trans temps past 230F in the summer go for it. Since removing it, and going back to the old original OEM setup the highest I've seen is 215F in extremely bad traffic vs 237F. Efan from a certain vendor DOES NOT properly cool an Alpha in the southern United States.

You can't get super sparks for the Alpha since it uses wires from the coil to plug, but I would replace them at the sametime as the plugs. I'm running Autolite Iridium XP's and they're working great.

 

[derian06]

Good luck on the Efan.... If you wanna see engine/trans temps past 230F in the summer go for it. Since removing it, and going back to the old original OEM setup the highest I've seen is 215F in extremely bad traffic vs 237F. Efan from a certain vendor DOES NOT properly cool an Alpha in the southern United States.

You can't get super sparks for the Alpha since it uses wires from the coil to plug, but I would replace them at the sametime as the plugs. I'm running Autolite Iridium XP's and they're working great.

I'm not ordering the efan from a certain vendor. My alpha does get up to 3/4 or higher when it is hot out though. Instead of an efan i'll get a scan guage.


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[Best4x4]

Also check between the radiator/AC condensor. It could have crap like leaves stuck in there.

 

[amrg]

Now that I have my alpha i'm going to bring the thread back up. I'm getting 11.4 mpg with no tune, no idea when the oil was last changed, when the air filter was last changed, when the spark plugs were changed, and when the other fluids were changed. So, these are the steps i'm most likely going to take before the rancho comes in.

1. Oil Change with synthetic
2. AC Delco iridium plugs (I need the number)
3. New AFE dry air filter
4. Clean MAF and throttle body
5. Tune
6. Supersparks
7. Ported throttle body
8. Efan

Any thoughts? I'm most likely going to go through james from 355nation for the tune, efan, and ported throttle body. 500$ right? Does he make these items for the 5.3L?

Also my idle is great, but throttle response is lacking and acceleration is around 11.6 seconds from 0-60


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With all my mods, Im doing 12 secs for 0-62 (but thats at summer temps of 125+). Used to get 9 secs at 65 degrees (during the winter) and before doing a radiator flush and changing my thermostats to the NEW and WORSE 192f ones (stock was 180f). So I guess check the intake/exhaust for any issues because your too low on performance.

Personally, an intake and exhaust yeilded me 1 sec in acceleration (running 32s in approx 75 degrees). I clocked 8 secs 0-62 with 32" tires (9 secs before the mods).

 

[derian06]

With all my mods, Im doing 12 secs for 0-62 (but thats at summer temps of 125+). Used to get 9 secs at 65 degrees (during the winter) and before doing a radiator flush and changing my thermostats to the NEW and WORSE 192f ones (stock was 180f). So I guess check the intake/exhaust for any issues because your too low on performance.

Personally, an intake and exhaust yeilded me 1 sec in acceleration (running 32s in approx 75 degrees). I clocked 8 secs 0-62 with 32" tires (9 secs before the mods).

It's 85-90* here, really humid. I have an airdoc installed, but that is it. I also cut the muffler, so that could reduce low end torque. But i'm also on 35" km2's. I feel like it's a problem with the spark plugs, or it's that I haven't had an oil change in who knows how long. I think and hope all i need is a tune up.

My I5 was around a 9second 0-60

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[derian06]

Talked to James from supermod, he is very informative! And seems like a great guy. After talking to him I'll definitely go that route. He is worried about the alphas engine temp going above 1/2 and all the up to 3/4 or 7/8. Isn't that just a known problem for alphas? The only code I have is this darn Evap leak.


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[derian06]

0-60 I think it's around 11-12seconds.https://vimeo.com/104681755


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[Airborne]

Talked to James from supermod, he is very informative! And seems like a great guy. After talking to him I'll defiantly go that route. He is worried about the alphas engine temp going above 1/2 and all the up to 3/4 or 7/8. Isn't that just a known problem for alphas? The only code I have is this darn Evap leak.


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Yes he is. I got my ptb, super sparks, efan, initial tune and hp tuners through him. He is very knowledgable on many subjects and the best thing he will help with whatever you need. Great guy can't say enough good about him. Btw his efan has kept my H3 cool all summer very rarely getting above half.

 

[SedonaBound]

The difference between easy bolt-on "performance" bought by guys and wrinkle cream bought by women is that the wrinkle cream actually works for two hours. If it doesn't dyno @ higher HP and at a useable RPM, it's just a way to separate you from your money.

 

[derian06]

The difference between easy bolt-on "performance" bought by guys and wrinkle cream bought by women is that the wrinkle cream actually works for two hours. If it doesn't dyno @ higher HP and at a useable RPM, it's just a way to separate you from your money.

Tune, efan, and ported throttle body are all safe in my opinion. Then theres things like throttle body spacers, and a chip that tricks your engine. I just want to be a bit faster and get some better mpg's. I'll be sure to do a before and after, and the total cost. I know my 0-60 is around 11-12 seconds and i'm getting around 10-13 mpg. So i'll do it step by step to see what actually made a decent difference.

 

[SedonaBound]

Torque loss is inversely proportional to tire OD. 35s are 5% bigger than 33s = 5% loss in effective torque. That's a relatively huge loss and can't be regained without serious engine mods (and money).

 

[amrg]

You could go crazy and change the heads/cams or even get a stroker kit!

 

[Best4x4]

My Alpha with an ARB Bumper, and Warn Winch runs cooler than my wife's 07 Adventure with the 3.7L going down the road!!! 70-75 in the Alpha with the OEM Clutch Fan setup is 203-207F tops (crappy efan was 213-237F.....). The Adventure (190 Thermostat ) is 203-215F with the OEM Clutch Fan, and no winch or bumper...

Honestly I feel my wife's H3 has more zip because it's mainly stock, with the stock 285's, and just an AirDoc, and resonator removed. Now when it comes to passing someone or quick acceleration under load the Alpha smokes the I5 due to more torque. My Alpha is much heavier with all the mods, but once up to speed say on a road trip I can still get 13.5-14MPG. It's just the stop n start stuff that sucks fuel due to having to get 5K moving again.

An H3 is not going to win any drag races. My wife's old 04 GC 4x4 with the 4.7L made my Alpha with a 5.3L look like a pinto... The GC maybe weighed 3.2K vs 5.2k. However the H3 can kick a GC's butt off road!!!

Do a complete tune up, new wires, plugs, oil change, clean the MAF, throttle body, drop in some seafoam into the tank, and disconnect the battery so your PCM will retune with the clean/new parts.

I know this sounds stupid, but after changing all my H3's TC fluid with RP Max ATF they seem to coast much better. I noticed it after exiting the freeway, used to feel like an automatic brake when u let off the throttle, but after the RP in the TC it honestly seems to coast longer before bogging down.

The fan clutch on our Alpha's really hurts us in the summer months and bogs the engine down, but it is doing it's job of cooling the engine so ZERO complaints there vs the snake oil performance Efan!!! I won't ever go back to an Efan in an H3!!

 

[derian06]

My Alpha with an ARB Bumper, and Warn Winch runs cooler than my wife's 07 Adventure with the 3.7L going down the road!!! 70-75 in the Alpha with the OEM Clutch Fan setup is 203-207F tops (crappy efan was 213-237F.....). The Adventure (190 Thermostat ) is 203-215F with the OEM Clutch Fan, and no winch or bumper...

Honestly I feel my wife's H3 has more zip because it's mainly stock, with the stock 285's, and just an AirDoc, and resonator removed. Now when it comes to passing someone or quick acceleration under load the Alpha smokes the I5 due to more torque. My Alpha is much heavier with all the mods, but once up to speed say on a road trip I can still get 13.5-14MPG. It's just the stop n start stuff that sucks fuel due to having to get 5K moving again.

An H3 is not going to win any drag races. My wife's old 04 GC 4x4 with the 4.7L made my Alpha with a 5.3L look like a pinto... The GC maybe weighed 3.2K vs 5.2k. However the H3 can kick a GC's butt off road!!!

Do a complete tune up, new wires, plugs, oil change, clean the MAF, throttle body, drop in some seafoam into the tank, and disconnect the battery so your PCM will retune with the clean/new parts.

I know this sounds stupid, but after changing all my H3's TC fluid with RP Max ATF they seem to coast much better. I noticed it after exiting the freeway, used to feel like an automatic brake when u let off the throttle, but after the RP in the TC it honestly seems to coast longer before bogging down.

The fan clutch on our Alpha's really hurts us in the summer months and bogs the engine down, but it is doing it's job of cooling the engine so ZERO complaints there vs the snake oil performance Efan!!! I won't ever go back to an Efan in an H3!!

Tune and ported throttle body for sure. This is a dual efan not just one. So i'm guessing it's going to work better than the sponsors. I got my oil changed and i'm in the process of a fuel treatment system right now. I have a DRY K&N filter in there they told me. It's a washable one.

The rancho is going to be 2200$ plus install i'm guessing 2-500$ but knowing my mechanic it'll probably be closer to 200. But I'll also have to order some shocks for around 800$ so I'm going to be strapped when it comes to performance. So most likely e-fan is a no.

I hit 3/4 or 7/8 on the temp when it's hot. I stay at around 1/2 when it's not blazing outside. This sounds about normal right?

 

[cgalpha08]

Tune and ported throttle body for sure. This is a dual efan not just one. So i'm guessing it's going to work better than the sponsors. I got my oil changed and i'm in the process of a fuel treatment system right now. I have a DRY K&N filter in there they told me. It's a washable one.

The rancho is going to be 2200$ plus install i'm guessing 2-500$ but knowing my mechanic it'll probably be closer to 200. But I'll also have to order some shocks for around 800$ so I'm going to be strapped when it comes to performance. So most likely e-fan is a no.

I hit 3/4 or 7/8 on the temp when it's hot. I stay at around 1/2 when it's not blazing outside. This sounds about normal right?

Are you hitting those higher temps with or without the A/C on? When i leave the A/C off and its hot I don't go past half, with the A/C on, that's another story.

As to the performance, the only complaint I have it low end throttle response, otherwise it is still quick enough and has enough get up and go, surprises other drivers sometimes too.

 

[derian06]

With mobil 1 full synthetic and a fuel treatment:

12.26s 0-60

But it is 20-30 minutes after everything was done if that makes a difference.

 

[Best4x4]

Btw my temps are with AC on. I'd check between the radiator/ac condenser for leaves, bugs, pine needleds, and mud. Had that make my jeep run hot a few times! When u get a scan gauge II you'll kbow the real temps, but as long as you aren't past the last white mark on the temp gauge you're ok. Midway between that and red was 237F.... In my Alpha!!

 

[derian06]

Btw my temps are with AC on. I'd check between the radiator/ac condenser for leaves, bugs, pine needleds, and mud. Had that make my jeep run hot a few times! When u get a scan gauge II you'll kbow the real temps, but as long as you aren't past the last white mark on the temp gauge you're ok. Midway between that and red was 237F.... In my Alpha!!

I already sprayed water through the radiator and didn't find many debris. It's running at about 1/2 now, but it's not that hot out. My A/C is on aswell with the temps.

 

[derian06]

Are you hitting those higher temps with or without the A/C on? When i leave the A/C off and its hot I don't go past half, with the A/C on, that's another story.

As to the performance, the only complaint I have it low end throttle response, otherwise it is still quick enough and has enough get up and go, surprises other drivers sometimes too.

It's with A/C on, and it seems like in the 0-60 the 0-20 kills the time. The mid and higher speeds seem to be just fine.

 

[cgalpha08]

It's with A/C on, and it seems like in the 0-60 the 0-20 kills the time. The mid and higher speeds seem to be just fine.

That's about the same as I get when I have my A/C on. The lag is horrible.

 

[skippy]

a set of extractors make a difference