Many of you may have seen information claiming that moving the IAT sensor or spoofing it with a resistor will gain you some pretty cheap horsepower. In our opinion the adaptive learning capabilities of the ECM eventually "tune out" any gains experienced over a short period of time. The ability for the ECM to compensate and learn allows you to drive your vehicle in all types of elevation (sea level. mountains), weather conditions (both hot and cold) and not require differnent programming.

For this reason we do not recommend these gimicky type devices that you may find on eBay or through other sources. Instead we encourage the use of a cooler thermostat and ECM reprogramming to help keep your engine cooler and make more power. We believe this so much that we are offering FREE 160 degree thermostats (http://intense-racing.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=IR&Product_Code=LSX-TST-160&Category_Code=G8_Cooling) with all of our INTENSE G8 ECM tunes (http://intense-racing.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=IR&Product_Code=G8-ECM-2008&Category_Code=G8_Electronics) sold this weekend. Simply add an ECM tune to your basket and checkout normally and you will prompted to accept your free thermostat.

Here are a few of our more recent ECM testimonials:


'My comments – great job on the tune!' - Joe Granatelli (Granatelli Motorsports) '09 G8 GT with APS Twin Turbo Kit



'This package is awesome, 285kph/171mph! and room for more. It's no longer my wife's car. LOL.' - Mike Myers, '08 G8 GT with APS Twin Turbo Kit.



‘The torque is much better. The tune had me getting a chirp from 2nd to 3rd. I'm definitley getting rubber from 1st to 2nd. This is one of the best bang for the bucks out there! ’ - Doug Boyle, ’08 G8 GT



‘The responsiveness is much better, without a doubt’. - Justin Warner, ’09 G8 GT



‘Stopped by on my road trip and got to try out one of their tunes. Scott and Todd do great work. Put one of their ECM's in the car and hit the "Butt Dyno" (country roads are great!). I was looking for some wheel spin on launch and a good chirp on that 1-2 shift. Todd did a little tweaking and soon I was getting some excellent launches and all the chirps I wanted. Even got a little "fish tail" action on the way out of town! Always good to deal with folks that know the car.’ - Brian Pacejka, ’08 G8 GT

The low-down on the LS1 was that it LIKED a bit higher operating temp for power. Not IAT, but engine temp. What is your basis for a lower temp thermostat for this car? Have you done back-to-back runs (same day, conditions, etc) on the dyno going back and forth to demonstrate this benefit?

I am just starting to learn a bit about the G8 and consider what performance mods I may do to this car. My GTO has gotten fairly radical; this one won't go so far!

I wasnt even going to respond to this, but as most of you know I will not let people be misled. I call bull****! 1. You never even responded to the posts about your inability to tune the trans. 2. 1 of your testimonials runs a Vector tune! 3. The IAT is a sensor that responds at a much faster rate then stock and if you "knew" what you said you do you would not continue to mislead people with this crap! Stick to something you can be honest about and have PROOF of before misleading the consumer. This is why I have never asked anyone from your organization to be on my site. It never would have made a day with this ****!

I agree 100% with Charlie on this. I realize this is a sponsor section but we still need to call BS when it's plain to see.

I have a HSRK on my stock car and it works great, is that what you are speaking of?

Just so there is no misunderstanding, Scott lent me one of their ECM's prior to my VMS ECM arriving. So I have 3 of them, 1 stock and 2 aftermarket. When I stopped by on my road trip they tweaked the ECM they gave me. My comments were based on that piece of equipment.

You know that I know this too. You do USE a VMS tune as in your sig correct? My point is if you turn off TQM it will fry the tires and rip the tires when it shifts, right up until the trans takes a ****! They can not state that they have a cheaper mail order tune that does not tune the same parameters and get the same fuel economy as VMS and cost less when its not true. It is an intentional attempt to defraud the consumer and I am not letting it happen as it would make me look bad if I read it and didn't post a statement. I still haven't read or heard a word from them about my other post either. That tells me all I will ever need to know. Its not like everyone doesn't know how to find me.

The OP did say that it is all his opinion. I personally would not start or promote a business based on my opinion, though...if it were me.
Badmouthing other's products (even other supporting vendors) is not the best way to sell products. Try imperical data. That's what we look for.
I do believe that there is probably a case to be made for lowering engine temps to get head temps lower. I'm not yet convinced that 160 is the wat to go. I would also like to see proof... in the way of back to back dyno runs with NO CHANGE other than the thermostat and necessary ECM change to turn on fans early. Interested?
I have seen data on HSRK. It does work, so I did get one. Show me hard data vice opinion, and I will buy damn near anything.

I have always been a fan of testimonials!

Still no answer.

I'm sure he's busy putting thermostats in G8's now.

If you look at his posts, Rogue doesn't tend to post on weekends. He may actually have a life outside of this forum, so don't be *******s because he doesn't post for a couple days.

Not being an *******, when a vendor posts a special they usually monitor the site for questions about the special.

Why ya gotta be so mean... :(

Sorry, Monday's are extremely busy for me and I don't normally check the forums on the weekend. I do have family obligations.

1. You never even responded to the posts about your inability to tune the trans.
I must have missed the post about this. If you direct me to it I'll be happy to respond.


2. 1 of your testimonials runs a Vector tune!

Brian has run multiple tunes. His comment that I posted was based on his opinion of ours.


3. The IAT is a sensor that responds at a much faster rate then stock

I'm not sure I follow this statement, faster than a stock what? The IAT sensor simply calculates air temp going into the engine. Many eBay type "spoofing" resistors change the reading to be colder than current ambient. Many computers are programmed to add timing if the IAT sensor reads a cold temperature and in the short run adding these resistors can add timing.

The problem is that our computers have adaptive learning. If your engine gets detonation because of too much timing it will learn to ask for less timing. Over time this undoes the extra timing that a spoofed IAT can initially give. We've been modifying boosted engines for almost a decade and again in our opinion the better way to do this is to change the timing in the tune and cool the engine so that it doesn't detonate with extra timing.

Sorry, Monday's are extremely busy for me and I don't normally check the forums on the weekend. I do have family obligations.


I must have missed the post about this. If you direct me to it I'll be happy to respond.


Brian has run multiple tunes. His comment that I posted was based on his opinion of ours.



I'm not sure I follow this statement, faster than a stock what? The IAT sensor simply calculates air temp going into the engine. Many eBay type "spoofing" resistors change the reading to be colder than current ambient. Many computers are programmed to add timing if the IAT sensor reads a cold temperature and in the short run adding these resistors can add timing.

The problem is that our computers have adaptive learning. If your engine gets detonation because of too much timing it will learn to ask for less timing. Over time this undoes the extra timing that a spoofed IAT can initially give. We've been modifying boosted engines for almost a decade and again in our opinion the better way to do this is to change the timing in the tune and cool the engine so that it doesn't detonate with extra timing.
This is not a spoofed IAT. It is a faster responding one that is not located in the MAF. I am done.

This is not a spoofed IAT. It is a faster responding one that is not located in theh MAF. I am done.

I'm sorry, maybe I'm missing something. Can you define what "this" is.

I guess I will be polite and state that it is a relocated IAT sensor that is removed from the MAF to reduce heat soak so timing is not pulled out do to false readings. It is a 10x sensor so its response time is way faster then the one built in the MAF. There are 100s of posts and pics on here if you need info.

I guess I will be polite and state that it is a relocated IAT sensor that is removed from the MAF to reduce heat soak so timing is not pulled out do to false readings. It is a 10x sensor so its response time is way faster then the one built in the MAF. There are 100s of posts and pics on here if you need info.

Ah, you're talking about the Vector HSRK kit.

I was referring to more along the lines of this:

PERFORMANCE CHIP PONTIAC G8 (http://cgi.ebay.com/ebaymotors/PERFORMANCE-CHIP-PONTIAC-G8-GAS-SAVER-G6-SUNBIRD-VIBE-S_W0QQcmdZViewItemQQ_trkparmsZ72Q3a727Q7c39Q3a1Q7c 66Q3a2Q7c65Q3a12Q7c240Q3a1318QQ_trksidZp3286Q2ec0Q 2em14QQhashZitem170268796815QQitemZ170268796815)

I've not personally run or tested the HSRK kit but since you brought it up a quick search outside the forum resulted in this persons test and review. http://ss-shootout.com/hsrk-results.html

I'm not trying to start fights here. I'm just explaining the benefits of the way we do things and offer our experience to the community.

I understand. Now lets talk about ALL the people with G8s that have them and have proven results. Having 18 ASE certifications I too did the test. Not 1 test could I ever get the IATs to drop to outside temps by 2nd gear without the HSRK. Example: 107 degress outside, 140 degree IAT, by 2nd gear it was at 110. Without it at 100mph it was at 118 and both tests were done with my lower panel mod to eliminate the chance of not getting the cooler air. I can on most cooler days get IATs a bit cooler then outside temps. I have mounted a thermocoupler to test for trickery, and it reads the same as the IAT.

You can see our response at http://www.g8board.com/forums/showthread.php?p=107472#post107472