I've seen a lot of much older posts (and followed the threads) regarding ported throttle body sold by a couple of vendors, but I can't actually find someone that currently sells one. Can anyone point me in the right direction? Also, has anyone replaced the head on theirs with a performance intake? Just wondering. Thanks!

 

Supermodulation probably still sells them as a service.

I would contact them. Plenty of other things you could do instead though.

 

Here's a link to the person GP mentioned on ebay:

https://www.ebay.com/itm/H3-Colorado...-127632-2357-0

 

Thanks Senior Members gpcalero and Rogers!

I've not had a chance to go through the truck much yet. I did get the Viper electric start and alarm and door locks to work -- woo hoo! As far as the "plenty of other things" I could do, I expected:

Cold Air Intake
Ported Throttle Body
Performance Heads?
A tune vs a chip
Cat / Resonator delete?

Thoughts?

JP.

 

Nice job on the Viper system! Sounds cool

Since you're interested in our thoughts on upgrades and such, here are my opinions! DIY intake tubing from between the air box and the throttle body, cleaning the throttle body (I'm very interested in the Supermod ported TB, so if you get one keep us updated!), cleaning the intake ports (if really wanting to get deep, DIY "porting" the heads, at which point I would clean the whole head with it off and consider forged pistons), possibly a dry AFE re-usable filter, using an intake coupler to replace the factory "snorkel" connecting the air box to the fender, DIY efan swap, keeping the cats but replacing with high performance cats (I think cats are cool, personally, and the performance loss is extremely marginal if any on the modern performance cats I have used according to HP charts provided by mfg), and lastly purchasing and learning to use HPTuners (MAF scaling, fuel tables, spark tables, and so much more like adjusting the speedometer for tire size and gear ratio, disabling VATS or "passlock," etc.). There are some really good resources on youtube for learning how to tune with HPtuners and there is soooo much valuable knowledge to gain from the process.

Let me know if you're interested in some of the things above because I have made a number of videos outlining the processes for the simpler ones.

My thoughts on your ideas:
Yes! (while keeping stock MAF sensor & airbox) Cold Air Intake
Yes! Ported Throttle Body
Maybe porting stock heads! Performance Heads?
Yes to tuning (with HPtuners)! I don't recommend a "mail order" tune because it is not specific to the manufacturing variance of your exact system. A tune vs a chip
Not unless swapping for high performance cat! Cat / Resonator delete?

 

You can destroy your drivetrain playing with HP Tuners when you do not know what you are doing.

Performance head (an I5 has a single head) and you not get anything in gain near what you would spend. We have a head porting business across the street, used their flow bench many times. The head is a weak spot (durability) for I5s and flows plenty for the displacement, no need to mess with it.

I have been in the industry with focus on H3s and GM trucks for more than a decade and referred 100s of people to PCMofNC.com, they do a great job, and do tailor your specific tune per the order sheet you fill out using their drill down list. Do all your other mods first then order to fit. Best bang for the buck out there.

Pair that with an intake for the I5s and you grow your truck a set of *****.

The I5 exhaust is nearly all it needs, making it LOUDER accomplishes nothing except hurt your ears, look for a quality CAT Back system.

You missed the Efan conversion. Makes zero power, but frees up some and boosts mpg.

My 07 had it all, Air Doc Intake, AFE filter, PP TB, MagnaFlow CAT back, PCMofNC tune and Efan conversion with CSF Aluminum Radiator. I would recommend it all but the CSF radiator, I went through two, they leak after a while and their warranty support sucks. On 33s it could sand drag with all the V8 powered mostly stock FS pickups and SUVs, even though it was heavier. That was a fun truck for a 5 banger.

 

I personally haven't heard of anyone messing up their drivetrain with HPT. If one is careless and doesn't engage in the needed information gathering and development of skills, tuning can certainly destroy an engine, trans, etc. That's why learning from other people is so valuable, and there are plenty of free and helpful resources online, though not everyone is comfortable or wants to learn the skill. While "mail order" tunes do a good job accounting for mods and are certainly valuable in their own way, the limit is not tuning to a specific vehicle's imperfections and variance in manufacturing (quality control limits of all the various components involved in engine processes). In my opinion, learning a new skill, gaining useful knowledge, and having the ability to customize endlessly for one initial purchase price $300 (for HPT MPVI-2) & $100 (to register the H3) is the best bang for my buck. I get you've been in an industry doing the same things for more than a decade, Doc Old's.

Changing tire sizes (adjusting speedometer) takes 3 clicks of the mouse & typing new tire diameter. Disabling VATS takes 4 clicks of the mouse. Virtually no downtime as the PCM stays in the vehicle and the changes are performed through the OBD-II port via USB.

Tuning the MAF is a simple process. Tuning the fuel tables is a simple process. Advancing spark safely is a simple process. All of these allow for the specific vehicle being tuned to operate more efficiently, ultimately making more power. Tuning definitely has a learning curve but free guides and support in forums make it a very tangible skill for many to engage in.

Purchasing a pre-made tune satisfies the desires of some people, learning to tune works for others, as well as the factory tune for some people, too.

 

ah the old adage. give a man a fish he eats for a day teach a man to fish.... is what comes to mind. good point Dylan but not all of the younger generation want to learn some rather be spoon fed.

 

The H3T is never going to be a speed demon, but my wife complains of the low / rough idle when she drives it, so for just that reason I may change out the throttle body. But other than that, I am probably just going to leave it as is.

 

My 3 idles smooth as glass. Try my secret recipe: