Hey there guys... My impression so far is that the car has never moved this fast in its life. Overall responsiveness is amazing and when the throttle is floored it just takes off!!

I have never felt so much pull before in all of the gears. That is definitely worth the investment right there. Every gear... 1st... Shift... 2nd... Shift 3rd... I could only dream of pulling such speeds so quickly before. Out on the track this car is going to be so much fun to drive. My words regarding the acceleration difference really does not even begin to justify how much different this car is now from before. It's just something that you have to feel for yourself. Second gear now is completely different than before. I am feeling G's that I have never felt experienced on WOT acceleration. This is now a much different car than before.

Fourth gear to me is especially nice. Out on the track before in fourth gear was very uneventful. It seemed as if you were just waiting to shift into fifth as the rpm's rose and you didn’t feel a thing. The car just didn’t seem to be alive as speed increased yet you eventually made it up to high rpm's to shift into fifth. The difference now is that the car just continues to pull throughout every rpm range just as if you were in the sweet spot of the power from 4,000 to 8,500. There doesn’t seem to be any real discernable deadness in power as the rpm's begin to reach the upper rpm band. The power is seamless and smooth all the way up to redline. The graph will definitely confirm this as afr's were steady between mid/high 13's and low 14's.

In the past weeks I have installed a lot of performance products on my car, but the one purchase that I am very happy about making is the investment in a wideband afr gauge. You will really be lost if you don’t have one. If the car has any hesitation/stumble at all, it will immediately be reflected in the gauge and this will allow you to make the necessary adjustments quickly and accurately. Without the gauge I think I would be lost and frustrated with the whole process not knowing exactly what my car was doing.

I am very glad that I purchased the Int-x. Scott did an amazing job with WOT runs and spending time with us just this past Sunday ironing the streetabiliy issues. The only trouble that I am experiencing now is under 60% throttle the afr's are shooting up. I am in the process of reading the manual and will spend some time tuning the car and will post up my results here in a few days.

If you’re looking to make a purchase that will further the performance of your car, the Int-x is a great way to go for both NA and FI type applications. I would definitely recommend this product to anyone that is interested in more performance. At first I was skeptical about purchasing this product because we only had swoope's impressions and it didn’t seem like that many of us were purchasing this product to use in a NA type environment. Any hesitation that you have about purchasing this product from a NA perspective should not be made without first realizing the true potential of this product. I am very happy about my purchase and would suggest to anyone with a NA setup that this be your next purchase. I took the plunge and will never look back.

Dyno graphs should be coming soon too. Scott is on his way back to Florida now and as soon as he organizes all of the dyno data files and sends them to us we will be able to post any type of comparison that is needed. Hopefully I’ll receive them soon.

I should also mention the current list of my mods..

Flywheel, RP Supercat, TurboXS exhaust, Racing Beat Revi/Air Duct

Nice!

how much did it all cost? parts, install, and tuning?

Glad to hear you like it! I would be interested in going for a ride one day to check it out. I like the direction you are headed with your car. :)

As a side effect, I would also like to hear about your fuel mileage once you get more tuning in and go through a couple of tanks. Where are you feeling the most difference? In the mid range? I look forward to seeing the before and after dynos.

If you wanted to see how much all of the performance parts cost, you could simply just add up everything that I told you.

Regarding the Int-x purchase, install and tuning all of this can be done for under 2,000 dollars. The installation of the product can be done in less than 30 minutes and is pretty straight forward. While at the meet this past weekend one of the attendees and I did it fairly quickly. He had already installed it himself and was helping me out with the install. The instructions provided with the kit walk you through step by step and are very easy to follow.

I suspect that fuel mileage is going to increase a lot!!! My afr's cruising vary from high 14's to mid 15's. It's very difficult to drive this car conservatively when you have much more power available to use at a moments notice. I am fighting the urge every second to get into throttle and open her up.

If it is really that good I might be next in line for a NA interceptor X!

The good news is that while Scott was out here the streetability testing that we did actually was improved upon and he took back an upgraded base map that may even be shipped out with the upcoming NA units. You would then benefit from the time that he spent with us tuning the cars. It's obviously up to Scott though if he feels that this map is significantly better than the one that shipped with the unit.

im glad to hear. hey your local dave. i was wondering if you can take me for a spin. i would love to feel how it drives. =)

Dave gratz :) My mods are very smilar to yours. Im waiting for deliver with turboxs exhaust,
ACT prolite flywheel, Unorthodox Pulley, revi + duct and I paid almost 2k without shipping. I want Supercat, but Im afraid my ears will blow up:) I was also sceptical, for the Interceptor ,but what You said, it seems to be worth. So my next order is gonna be RP supercat, or Interceptor thx to You;]. MAXIMAL N/A !!

Nice post - must resist reaching for my wallet a little longer...

I can concur with his review, my car is a little rough around the edges still since I haven't dyno tuned it and my base map was Dave's test map, but the over all feel was the same.

right now I have the unit off as I'm getting the car inspected next week, but then its going right back in and I'll start the tuning process again.

Charles, If you did go the Interceptor-X route you could use the built in aux input on front of the unit to retard you leading and trailing timing and add additional fuel for safety. They are both user definable fields so as you increase the power levels you could compensate accordingly.Scott

Must resist........willpower...fading....must wait for....Megasquirt....

The RX-8 code for MS is in limbo right now. Ken has been working on MSII as it doesn't currently support any rotary trailing ignition. He is going to put the RX-8 code into that update. When I'm not sure.

wow,
do i have some credibility now??? scott and i are pretty straightforward...

glad to here you results.... and once again... grats scott....

btw, nem,,, get the mirrors first:lol:


beers :beer:

Dave ,
would it be possible to do some in gear acceleration tests for us all . This would really give us some idea of the improvements you have made & is less reliant on standing start technique etc.
Wheels mag in ausssie got the following for a stock RX8
50-75 MPH (80-120kph)
3rd : 4.6 s
4th : 7.2s
5th : 9.0s
6th : 11.1s

Just for interest the turbo RX8 they tested in the article got 3.0,4.0,5.0,6.4

Brett

btw, nem,,, get the mirrors first:lol:

:ylsuper:

Scott,
How easy will it be to tune the X by a complete novice with 97 octane? The X will be my final mod since I planned to get it anyway even without FI.

I assume the tuning was done on a dyno, what were your before and after HP results and tq results? (why wait for the graphs, just give us numbers)

AFR graph from canscan.... Need to richen it a bit at 7250.... Another day of tuning is alright with me.. :)

Pre mod dyno number (Borla exhaust, flywheel):
175 whp

Post mod dyno number (TurboXS exhaust, RP Supercat, RB Intake/Air Duct, flywheel):
185 whp - GT Motorsports
190 whp - Jackson Racing

Post mod dyno number + Int-X tune: not sure yet.. Need the data from Scott.... (not worse than 185 whp :))....

I really do think that there is even more left in the car from the baseline run that I am about to show you. The graph that I posted above was tuned based upon the feedback given from my gauge/odb scan tool since the so. cali meet. The graph that I am about to show you now was produced by tuning from another source. As you can see it's too rich in places and my whp numbers will still be better than pre Int-X.

I'll dyno my car again with the tuning that I have done and post that sometime in the future....

This afr graph here will reflect the whp numbers that everyone is anticipating.

Dave - adjust your AFR scale in Excel to 10.0 as the lowest. Post your .log and I will show you.

Here is the file that I used to develop the latest tune. Just rename it to meet your needs.

Thankx for your help.

Sorry for the LARGE image - looks a little lean up top, right?

Anyone out there close to me having the InterX be willing to loan me their serial cord adapter? Scott forgot to give mine back after tuning it. I'd come and get it and return it.

Scott if you're listning could you mail it to me. I'll PM you anyway.

If the Int-X is purchased for N/A can the same one be used if I eventually buy a turbo?

If the Int-X is purchased for N/A can the same one be used if I eventually buy a turbo?

yassir

aight well get me a dyno to see what kind of numbers this puts up haha :suitdance

aight well get me a dyno to see what kind of numbers this puts up haha I deleted your animated GIF because you have not read the threads... :rock:

i would wait to hear from scott on this one.... to my understanding the units veried a bit.....

but he could have worked that out....

this is something we talked about in person...

but if he has the cruise working with the turbo all might be well...

beers :beer:

I deleted your animated GIF because you have not read the threads... :rock:

???

???In my post that quoted you, I deleted your dancing dude because there is a posted dyno for N/A. You need to find it before you can dance :mdrmed:

Oh I thought that dyno was before the int-X was installed. Just with the other mods

Dave ,
would it be possible to do some in gear acceleration tests for us all . This would really give us some idea of the improvements you have made & is less reliant on standing start technique etc.
Wheels mag in ausssie got the following for a stock RX8
50-75 MPH (80-120kph)
3rd : 4.6 s
4th : 7.2s
5th : 9.0s
6th : 11.1s

Just for interest the turbo RX8 they tested in the article got 3.0,4.0,5.0,6.4

Brett

Hey there.. I just performed a run from some modifications that I did and the good news is that at 5hg I was able to do away with a nasty lean condition that occured between my WOT and CRS maps. Nice!

The bad news is that I had to increase the values on the LOAD map which also in turn made all of my values that were perfect on the WOT map increase to partially rich.. In other words. One mistake fixed.. another one created.

I did happen to log my speed during the runs and was able to capture the amount of time it took me to go from 50 mph - 75 mph in 3rd gear.

The result was a run that took 4.3 seconds...

I'll lean everything out again back to my original settings and try again tomorrow...

This tuning is a very interesting process. If you look at the two screens that I am about to post, you will notice that the AFR readings went rich the entire way accross the rpm range. This is due to the load settings increase that I had to make... I'll lean out my WOT map/0hg settings just a bit to compensate for the increase in fuel.

Before and after screen shots to follow....

Any Dyno graph yet ?

BTW
I did some in gear tests in my stock 8 (with catless midpipe) 1/2 tank of gas @ 15deg C


could not get below 5.0s in 3rd gear - your 4.3 is very quick !

Dave , very interested to hear your impressions of the car under part throttle .

Driving on twisty roads I notice a lot of the time is spent at part throttle rather than WOT .
Are there significant improvements at part throttle as well ?

It's pretty good right now but I feel that it could be even better. Under 10 inches of mercury the car is just starting to pick up speed and I havent yet opened up the second injectors.

This can really be improved upon I think and will allow the partial throttle situation to be even better than it is. Right now the car is pretty much set up for good cruising and the occasional WOT situation. I really do need to improve upon the 80 % throttle possition and transfer from this to WOT.

I am working on it but it's been sooo hot here in So. California that I havent tuned my car for over a few weeks now. Even at night the temperture barely gets into the high 70's and thats only after 10:00 pm...

Not that good of weather for tuning a car.

but anyway. I feel confident that I can make this even better by tuning out some of these lack of fuel issues with the second injectors coming on earlier.. It feels pretty weak right now at 80% throttle. I really dont have any complaints at WOT and even feel the power come on strong when it switches on the second bank of injectors...

Thats the main reason why I want to open them up earlier. I am controlling it right now by just increasing the duration that the first injectors stay open, but in the long run this obviously isnt the best solution....

Dynos?

Hey guys,

am I able to use the Int-X on my german 8? I want to get turbod soon :)! The first one in Germany :ylsuper: :ylsuper: :ylsuper: !

Please excuse my german, I know it's not perfect ;)!

Hey guys,

am I able to use the Int-X on my german 8? I want to get turbod soon :)! The first one in Germany :ylsuper: :ylsuper: :ylsuper: !

Please excuse my german, I know it's not perfect ;)!

Your german sounds like good english to me. :shocking:
j/k
You better PM Scott about that. I think other than US and Canada are not supported.

It's pretty good right now but I feel that it could be even better. Under 10 inches of mercury the car is just starting to pick up speed and I havent yet opened up the second injectors.

This can really be improved upon I think and will allow the partial throttle situation to be even better than it is. Right now the car is pretty much set up for good cruising and the occasional WOT situation. I really do need to improve upon the 80 % throttle possition and transfer from this to WOT.

I am working on it but it's been sooo hot here in So. California that I havent tuned my car for over a few weeks now. Even at night the temperture barely gets into the high 70's and thats only after 10:00 pm...

Not that good of weather for tuning a car.

but anyway. I feel confident that I can make this even better by tuning out some of these lack of fuel issues with the second injectors coming on earlier.. It feels pretty weak right now at 80% throttle. I really dont have any complaints at WOT and even feel the power come on strong when it switches on the second bank of injectors...

Thats the main reason why I want to open them up earlier. I am controlling it right now by just increasing the duration that the first injectors stay open, but in the long run this obviously isnt the best solution....


Thanks Dave ,
I have bought an ECU from Rotormaster in Aus & will be dynotuning as soon as I get my other bolt ons . This ECU will stay in closed loop with std factory settings until a preset point , so this is why i'm keen to learn from what throttle setting/rpm you are getting gains .
Any suggetions on where to switch it over to open loop ?
brett

i just wanted to know if i do get the int-x will it still work good because i have the RB flash also... i have no experience tuning .... i have no idea what im doin but i would love to have the added power and all