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N/A Dyno Tune @ KDR

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Old 08-30-2006, 09:41 AM
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Thumbs up N/A Dyno Tune @ KDR

(Before anything, I tried taking pictures of my dyno sheet but it was way too hard to read. I contacted dave and he said he'll email me the results tonight so i'll update it with that when i get it)

Ok..... So I went to Mother's in NJ and got my car "tuned" and when my car went on the dyno before the tuner did anything, my car dyno'd 178 whp... I was pretty upset and disappointed considering i had everything done that i possibly can for a N/A car besides porting and Nos... (see my signature)

When the tuner was done tuning my car (which he tuned for only for WOT), my car had 181 whp but some serious issues for daily driving.

issue #1 - my car would stall instantly when the engine is cold. i had to start my car and rev my car and keep it at 3k or so for about 15 secs then let go for it not to stall.

issue #2 - my car would stall 50% of the time when i'm in gear and i take it out of gear to neutral to stop at a redlight or stop sign... (while i'm moving).

issue #3 - at 3200 rpm, my car jolted and spazzed out every single time in all 6 gears. didn't matter if i was 10% throttle or WOT, spazzed out no matter what... and considering 3200 is where im at for daily driving, it sucked real bad.

issue #4 - i filled up my car with v-power from shell as usual... but i couldn't get more than 180 miles when my gas needle is a little below the last line... i usually got 220-230 with mixed local/highway driving.

issue #5 - when i'm stopped at an uphill.. i'd have to almost burn my clutch everytime since my rpm kept dropping below 880 and it's hesitating... i'd be rolling backwards until it finally catches... stupid idle hesitation

So....i called up KDR since dave was so highly recommended and i made the 140 mile drive down to pennsylvania.

I got there, and man were there some sexy rx-7's EVERYWHERE!! haha there was this guy with a FD who was dyno/tuning and he reached 504 whp... and 299 tq.... i was quite jealous lol.

Anyways, right after dave got done tuning the rx7, he put my car on, and basically i must say, dave explained everything to me.

I must've asked him 100 questions and he took the time to answer everything. Kinda reminded me of how great Scott is with his customers lol.

We do some base runs and i got 187 whp. What i found interesting was, dave used the big fan and kept it running in front of my car whereas at mothers, they didn't use the fan. at mother's the temperature was 95 degrees with 80% humidty where was at KDR it was 80 degrees with 40% humidity. Another thing to keep in mind, at mother's the dude only dyno'd my car in 3rd gear at full throttle. Dave at KDR dyno'd my car in 4th gear every time except the last run, just to show me how much harder it is to see the details in 3rd gear since it goes up so quick and predicted i'd lose a few hp and tq on the dyno on 3rd.

The 187 whp was with the map the guy at mother's used... dave felt the jolts at 3k on every gear but was quite impressed at the 187 whp N/A. He then loaded up Scott's map (we're not sure if the guy at mother's tinkered with it) but we ran that and it ran at 178 whp but with no jolts and issues.

He reloaded up the map from the first dyno run, and he started explaining to me everything he was doing. Dave first fixed the 3200 jolts by adding some more fuel at that rpm and now it runs great! one issue fixed!

Dave then solved my poor mpg issue and pointed out that the previous tuner had set it so that the fuel is being dumped even at light throttle in my cruise rpms... so he made some adjustments here and there and told me the problem should be solved... awesome~

He then made the adjustments on my water temp for my cold starts so this morning, when i came down and started my car, it didn't stall for the first time, and no stalling when i take it out on gear or weird hesitations. more issues fixed!

Now... to get more power!! The first thing dave did was interesting. He took out the vacuum hose from the throttle body from my interceptor x, and he put this "pill" in it.. this white plastic thing that constricted the air flow but supposely smoothens it. He did this because he saw small spikes in the pulse. should be at consistant -2 mg or something but it was spiking to -1 to -5 mg. After he put this pill in, it only spiked to -1 mg once in awhile and to my surprise... i gained 3 whp just from that!! I was now at 190.1 whp... Check out dyno run 4. (dyno run 2 and 3 were scott's maps that dyno'd at 178)

Awesome~ now with the pulse being more consistant, dave said it was easier to tune since he knows where to tune at now.

He then took the base map and pointed out where the car was a bit too lean or too rich causing the spike past 7500 rpm. He wanted the car to hold the power throughout.

He smoothened out the AFR and we were able to get 195.3 whp at 139.3 tq. (dyno run #9)

The very last run (dyno run #10) we tried a pull on 3rd gear. He predicted we'd be in the high 180's but we still got 191.3 and he was impressed with how the car held the power.

He did some tuning at 1/2 throttle and on different loads (just like rotary god said a good tuner should do). He spent a good 45 mins on that. (not recorded on the dyno sheet)

He then let me drive out with my car for a quick spin to see how the car drives in the real world. I drove out 2 miles and drove back to get some gas at mobil and the car ran great!

I filled up my car, talked with dave a little more about my future plans with my car. Streetport + scott's turbo.

I was surprised... although my car was on the dyno more than 3+ hours, he only charged me $150 for everything and when i offered him tip, he refused. He only asked that i give him a call back a week later to let him know how the car is running. If i had some issues, he'd help me over the phone on what to do. What a guy

I drove home 145 miles to my house and to my surprise... at 138 miles, i was at mid tank whereas when i drove down to pennsylvania, i was at mid tank at 93 miles.

overall, the trip was definately worth it, and besides the obvious fixes and great results, the customer service that dave provided was awesome! I'd make that drive anyday.

Last edited by flyboi1121; 08-30-2006 at 10:04 AM.
Old 08-30-2006, 09:49 AM
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very cool, and great results. congrats.
Old 08-30-2006, 10:03 AM
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Dave is awesome. I haven't been to his shop in more than 4 years, but I still ***** for him on this site on a regular basis.

Glad to hear things worked out for you.
Old 08-30-2006, 10:07 AM
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Glad to hear that things finally worked out for u
Old 08-30-2006, 10:45 AM
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Great job w/ the tune - but I am really REALLY thankful for my car's numbers.
Old 08-30-2006, 12:29 PM
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Now that's how to use a dyno! He definitely knows what he is doing. I'd be curious to see what your maps look like now. I know Scott purposely built in a good degree of safety into his base tune, not to mention the ability to run on low octane, so it's not surprising that you got more power out of it. You did it right this time.

Last edited by rotarygod; 08-30-2006 at 02:57 PM.
Old 08-30-2006, 12:33 PM
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Dang - that's allot of writing. Had to scroll down to keep reading! Nice job BTW
Old 08-30-2006, 10:57 PM
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Congrats Flyboi
So how its filling the 195whp???
I am thinking about intX now
Old 08-30-2006, 11:12 PM
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great to hear a positive rx8 tuning session...

glad you are happy..

beers
Old 08-30-2006, 11:37 PM
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Just proves once again that Scott's interceptor does nothing for NA

180hp base plus 7 for intake and exhaust. Fine tune for 8 more.

Where's the 10 - 15 hp gain from the interceptor?

Are you telling me we only get 160 RWP from a stock 238 HP Mazda RX8 ?

That's a 33% drive train loss!

I don't think so..........

Just like my friend..... he shows zero gain from Scott's interceptor.

Several reviews and seeing results make me sceptical.

Sorry, I don't believe in the interceptor. You guys need to check more statictics.

Haven't seen any proof yet.. don't expect to see any either.

In fact the interceptor isn't better than the E Manage Blue.

Some tunings with the old Greddy ECU unit got the same RWP as Scott's.

Although there are better benefits with Scott's over the old Emanage...

I think the new Blue is better.

Not to be negative just factual and sceptical of gains from his unit.

Prove to me we all get 160 RWP or the Inteceptor is garbage.

Let's talk about peak RWP. We should be getting 11hp from intake and exhaust plus 3 from high flow/mide pipe. That's 14 plus 180 stock RWP gives us 194.

Where is the Inteceptor gains?

Too many dyno's show 180 stock with zero add ons......

Glad you found a good tuner fly boi121
Old 08-30-2006, 11:41 PM
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What do you mean no gain from the Interceptor? It worked perfectly. Didn't you see how the tuning increased his power?
Old 08-30-2006, 11:42 PM
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wow,

the 22 hp gains were in the 4.5k to 7k range... not a lot to be gained up top... depending on exhaust, cat.

but i thought you read that???? the new blue???

few have figured out the ultimate. and none have shown a dyno chart. but none has been shown here...

beers


Originally Posted by Razz1
Just proves once again that Scott's interceptor does nothing for NA

180hp base plus 7 for intake and exhaust. Fine tune for 8 more.

Where's the 10 - 15 hp gain from the interceptor?

Are you telling me we only get 160 RWP from a stock 238 HP Mazda RX8 ?

That's a 33% drive train loss!

I don't think so..........

Just like my friend..... he shows zero gain from Scott's interceptor.

Several reviews and seeing results make me sceptical.

Sorry, I don't believe in the interceptor. You guys need to check more statictics.

Haven't seen any proof yet.. don't expect to see any either.

In fact the interceptor isn't better than the E Manage Blue.

Some tunings with the old Greddy ECU unit got the same RWP as Scott's.

Although there are better benefits with Scott's over the old Emanage...

I think the new Blue is better.

Not to be negative just factual and sceptical of gains from his unit.

Prove to me we all get 160 RWP or the Inteceptor is garbage.

Let's talk about peak RWP. We should be getting 11hp from intake and exhaust plus 3 from high flow/mide pipe. That's 14 plus 180 stock RWP gives us 194.

Where is the Inteceptor gains?

Too many dyno's show 180 stock with zero add ons......

Glad you found a good tuner fly boi121
Old 08-30-2006, 11:43 PM
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razzi,

i can find the link for the dyno..

btw, if you are going to ask me premix ? by pm. and reply, you might give me an answer...

beers

Last edited by swoope; 08-30-2006 at 11:51 PM.
Old 08-31-2006, 01:16 AM
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i'll post the dyno with each runs... and u'll see improvements with each tune (except the last one cuz it was in 3rd gear)

dave got back to me saying he was a bit too busy. i'll take a picture of my dyno sheet in sections if i have to if i dont get the dyno from dave tomorrow.

dave did a bolt on test...

this is what he wrote to me in an email before i went to tune at his place:

Hello Yo...hope the following helps in some form...

99% of our interceptor tuning was with the turbo version rx8...with the normally aspirated RX8 we have learned a ton of what it does and doesnt like...to give ya an idea

a stock RX8 averages 178 rwhp....we then took one and added a greddy muffler only...we got 181...we then took that back off..and tried every intake on the market...racing beat...greddy...sr...blitz...etc and we never gained more than 1 hp...so we put it back to stock and added a midpipe...we gained 3 hp...so then we installed a midpipe and greddy muffler and an air intake...and we dynoed repeatedly at 183 rwhp..not much gain for a lot of parts cost...then we installed greddy's emanage and tuned all day with a gain of 2 more hp...and then we installed the interceptor and tuned the next day and ended up with 187 rwhp...the last thing we did was add a light weight flywheel and we ended up at 191 rwhp with all boltons and interceptor...we were somewhat disappointed....then we bolted on the greddy turbo kit and he dynoed at 278 rwhp at 8 psi...so whats all this mean...we wil probably end up in the 182-187 rwhp range with your interceptor...a nice gain..but not big...and yes..we do dyno piston cars with afc also...more than welcome to bring your friend also...there are nice gains there to be had witha maxima...hope this helps...thanks..dave@KDR

-------------------------------------------------------------

just shows... bolt ons dont do a whole lot on our cars... (some even take away hp from our car...) and if you think the interceptor did nothing for my car, you are wrong.

now... is the interceptor worth the money for someone who wants to keep it n/a... that all depends but even for n/a'ers i wouldn't say it's not worth it.

i personally got the interceptor because i planned on buying scott's turbo. and i figured i'd get the interceptor with the n/a set up just to see how much it does w/out the turbo. i was hoping to be in the 200's but 195 is fine. i was kinda upset that i had so many issues when i got it tuned at mother's but now that it's tuned well, i really enjoy the extra power w/out the expense of terrible mpg.

there's a lot more to the interceptor than just raw hp...

Last edited by flyboi1121; 08-31-2006 at 01:22 AM.
Old 08-31-2006, 07:30 AM
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scotts turbo... when is that coming out? any actaull specs on it or... sorry... dont mean to jack the thread.. but anything containing scotts turbo will be like 90 pages in length.. and again.. to much to sift threw..whens it do to be released..
Old 08-31-2006, 09:25 AM
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let me just say, everyone seems to be looking at the interceptor and comparing peak hp. yes i got a few more horses at peak but if you saw what the interceptor did through out the powerband, you'd be impressed.

now on the dyno sheet that i have, i dont have the original dyno run recorded where i have 178 whp but spikes everywhere and the power drops at 7.5k rpm.... but now with the tuned interceptor, my power is carried out all the way throughout to redline. not worth it? i think not

basically, you bring me an untuned na car with 195 whp and 140 tq, and we race head to head, i'd pull on him pretty hard, and every shift, i should pull too. so if you think the interceptor isn't worth it, you are wrong once again. it basically makes everything run more efficient (assuming you get it tuned by someone who knows what he's doing).

let's not just look at the peak hp, but realize all the options the interceptor x gives you.

i don't know exactly when scott's turbo is coming out but supposely by the end of this year? either the case, it's gonna be worth it and i have my heart set on buying it just based on the fact that it's scott's product.

Last edited by flyboi1121; 08-31-2006 at 09:28 AM.
Old 08-31-2006, 01:22 PM
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Good call to take your car away from Mothers. I'm not too keen on their tuning abilities, but I do know that if their customer service is anything like their tuning you want to stay far away.
Old 08-31-2006, 03:51 PM
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Originally Posted by flyboi1121
basically, you bring me an untuned na car with 195 whp and 140 tq, and we race head to head, i'd pull on him pretty hard, and every shift, i should pull too.
I'm tellin' ya - if you weren't ALL THE WAY on the other side of the country, I'd bring my car out and we'd run. That'd make for VERY cool video.

:D
Old 08-31-2006, 05:25 PM
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living in canada im to affraid to buy the InterX, as there arnt really any close Tuner shops that know rotaries.... id be stuck with someone that tunes it real crummy.. and be stuck with it.. unless i drove all the way from london ontario too pennselvania.. or where ever scott is located.. but.. thats one hell of a drive to just get the car tuned.. again..i feel so Shunted by the lack of options i have...
Old 08-31-2006, 07:55 PM
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Originally Posted by Skiptomylue
living in canada im to affraid to buy the InterX, as there arnt really any close Tuner shops that know rotaries.... id be stuck with someone that tunes it real crummy.. and be stuck with it.. unless i drove all the way from london ontario too pennselvania.. or where ever scott is located.. but.. thats one hell of a drive to just get the car tuned.. again..i feel so Shunted by the lack of options i have...
hm... maybe i can give your local tuner my map and he just has to replicate it. then obviously since our cars are slightly different, you can get it fine tuned with dave or scott over the phone? they're always available for assistance. when you buy scott's products, your also getting his A+ service.
Old 08-31-2006, 08:33 PM
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hmmm.. very possible, i wouldnt mind that at all... isnt it just a program that pretty much goes into your Laptop, that you put into your interX? that would be awesome, i dont plan on getting it for a long time, well.. a year or so...
Old 08-31-2006, 10:10 PM
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yep, u just install the microtech software into your laptop and there's a cable that goes from your lap top straight into your interceptor...and you just click here and click there.
.
Old 08-31-2006, 10:55 PM
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Hey man congrats on the numbers! Could you post up some of your screens? I am curious what he did to fix the flat spot at 3,000 rpm's as I have also tried to add fuel at that point but could never manage to remove it completely. It seems as if the DECEL function is kicking in at 3,000 taking away fuel only to add it a split second later because your accelerating (thats my theory anyway)...

How about posting up your rpm_wot, rpm_crs and load map?



Cool? I'll post mine up to if you like. I have been tuning my car ever since I had the int-x installed and it's running right around 12.9 to 13.1 afr's all the way to redline. It seems that with the int-x anything higher than this will lose power and anything lower does the same.. I thought that taking the afr's higher (above 13.7) would greatly add power but it did exactly the opposite.. takes it away...

I am curious what your afr's are as well...
Old 08-31-2006, 11:40 PM
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Here is a link to my int-x screens. I have two posts with screen shots located at the bottom of page 3 and the top of page 4.

https://www.rx8club.com/showthread.p...2&page=3&pp=15

Though I have changed them since I last posted these screen shots. I'll post up my new ones soon..
Old 09-05-2006, 02:04 PM
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bump for scrn prnts


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