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Old 08-02-06 | 02:27 PM
  #76  
matty's Avatar
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From: CT
Originally Posted by 4CN Air
but I thought the hesitation at throttle tip in, and other annoyances were just part of getting up there in HP numbers. I was wrong, they were products of a bad tune..
i would like to know more about this as i have the problem as well. its a friggen pain in the *** soemtimes. Some guys claim that its lean'ness but i think its just the opposite, richness. i think that b/c my car will backfire soemtimes when going on/off throttle.

one guy told me to replace the 02 sensor but the problem arose right after a tune. car was fine with the previous tune. then once it got tuned by another guy it started doing it.

did u fix the problem?

any comments welcome.

Last edited by matty; 08-02-06 at 02:31 PM.
Old 08-02-06 | 02:28 PM
  #77  
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KDR got a bad reputation from using Hurley Apex seals. That's a FACT !

7 years ago, I had tons of work done by KD Rotary. I had a great experience with him.

Does he still sport that bitchin MULLET ? That thing was rockin !
Old 08-02-06 | 02:38 PM
  #78  
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Originally Posted by 4CN Air
Well let's see, you took 6 months to fix my 5th gear synchro with nothing but bullshit excuses and ignored phone calls/e-mails. You installed your ultimate fuel setup which was to included new injector insulators (we'll come back to this). Your $300 tune made my car run better than when I pulled it in untuned, but I thought the hesitation at throttle tip in, and other annoyances were just part of getting up there in HP numbers. I was wrong, they were products of a bad tune.

Then you kept all my stock parts you replaced. I called several times and was told they would be shipped to me, it never happened. There was a rats nest in great condition with a silicone vac job just done, brand new airpump with like 2k miles on it (bought from you by the previous owner), secondary injectors, etc, etc.

Also when I took it to you I was loosing coolant, I thought it was a bad coolant seal, you checked it out and said "No, it looks fine, we'll go ahead and tune it". Took it home and it just got worse. Couple weeks later I pulled the engine for replacement, bad coolant seal. Pulled the primary injectors to find bits of chewed up rubber where the new insulators should have been!

Then there's the little things like charging me $75 labor to change spark plugs before my tune because they were so bad even though you "supposedly" changed them when I was there like 1k miles prior.

Also some may wonder why I made two trips there in such a short period. Well that's because the tranny work took so long it went into the winter, there were big storms coming and I had to get it home, well promises were made that it would be done Thursday, then Friday because the dyno was broken, I told you I had to come Friday to get it back before the big snow storm. So I was forced to pick it up Friday, untuned and drive it home in a snow storm; only to return in the spring to give you more money so I could run my car.

I also know all about your "knowledge" as a tuner, maybe it has improved since you've probably done a lot of cars at this point, but you had no business charging other people to tune when you first began to.
To answer those questions:
If it took us that long to fix the 5th gear syncro then we were obviously busy which we always are and get cars in here when we can. I dont know if we sent your tranny out or we did it here since I dont know your name.

If you were having a tip in issue then that is any easy fix, but hard to notice on a dyno when we are doing WOT pulls.

If you new anything about our ultimate fuel system we use new grommets on all of them. The problem is once they go in they dont come out without tearing them apart, which is what happened when you took them out.

Not sure why we would keep your stock parts since I have about 50 rats nest here and the same number of airpumps sitting in the corner of my garage. If you like I can send them all to you. Just let me know an address.

We never charged you $75 to replace plugs. I dont think I have ever charged anyone to replace plugs. It might have been for something else, but not plugs.

If my dyno was broken then I obviously couldnt tune it and if there was snow on the ground then I wasent able to do it on the street.

Since I dont know your name I cant tell you exactly what was going on at that time.

Jason
Old 08-02-06 | 02:41 PM
  #79  
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From: CT
Originally Posted by Jason
If you were having a tip in issue then that is any easy fix, but hard to notice on a dyno when we are doing WOT pulls.
Jason
how?
Old 08-02-06 | 02:45 PM
  #80  
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What size injectors are you running? Is it just stumbling out of the hole?
Old 08-02-06 | 02:48 PM
  #81  
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From: CT
Originally Posted by Jason
What size injectors are you running? Is it just stumbling out of the hole?
no. on off throttle and partial throttle. the car will buck and back fire soemtimes.

i have 1300cc injectors
Old 08-02-06 | 03:01 PM
  #82  
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What RPM and does it do it all the time?

Jason
Old 08-02-06 | 03:03 PM
  #83  
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Originally Posted by Jason
If you were having a tip in issue then that is any easy fix, but hard to notice on a dyno when we are doing WOT pulls.
Jason
Driveability should have been taken care of before WOT pulls were even attempted, which would have eliminated the tip in issue.

Matty,
Have you ever had your car tuned by Steve?
Old 08-02-06 | 03:05 PM
  #84  
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From: CT
Originally Posted by Jason
What RPM and does it do it all the time?

Jason
any rpm. on off throttle the car will jerk a bit. it isnt clean. if i am cruising and giving it just enough throttle to maintain speed it will break up and buck alittle.
Old 08-02-06 | 03:07 PM
  #85  
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From: CT
Originally Posted by Scrub
Driveability should have been taken care of before WOT pulls were even attempted, which would have eliminated the tip in issue.

Matty,
Have you ever had your car tuned by Steve?
i pm;ed u
Old 08-02-06 | 03:13 PM
  #86  
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From: Fort Worth, TX
Originally Posted by Scrub
Driveability should have been taken care of before WOT pulls were even attempted, which would have eliminated the tip in issue.

Matty,
Have you ever had your car tuned by Steve?

True. I typically will take it out on the street after the dyno and make sure everything is smooth and let the customer drive it. If there was snow on the ground then probably not something I would do.

Jason
Old 08-02-06 | 03:16 PM
  #87  
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From: Fort Worth, TX
Originally Posted by matty
any rpm. on off throttle the car will jerk a bit. it isnt clean. if i am cruising and giving it just enough throttle to maintain speed it will break up and buck alittle.
For cruising anytime I have had that problem it was a lean/rich issue which was fixed by adjusting fuel. Typically it was running lean.

Does it happen while in boost?

Jason
Old 08-02-06 | 04:58 PM
  #88  
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From: CT
nope not when in boost. the car is fast and very clean when accelerating. the problem only occurs when on off thrttle and partial throttle.
put it this way when the car is in neutral and i hold the revs constant at say 3k rpms it wil break up....pop..pop.pop...pop. u know? not clean. but acceleration is beautiful.
Old 08-02-06 | 11:14 PM
  #89  
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Had Dave build my eng. and turbos. Car never ran better. He never let me down. Who else is there to trust with our cars in this area. Those here this week and gone next, shops. Always went out of his way to help.
Old 08-05-06 | 07:26 PM
  #90  
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in my experiences with working with Dave, you can tell he loves the car, i feel like i can talk with him for hours just on old stories about racing and engine dynamics, he's a true rx7 enthusiast at heart. and he seems to me to be the type of person that will go out of his way for you, but he will be completely legit on things if they need work. he's meticulous from what he's done with my car. it works out pretty well really, he does all of the work on my car, and all i have to do is take care of it. i took my car to him with bucking issues, startup issues, the engine would die all the time, and i had taken it into a dealer to have them take a look at it and even their "rx7 specialist" said he did not want to touch the engine cause something was seriously wrong and did not want to take the engine apart only to tell me it was gonna cost 10K to fix and 3K to put back together.

it took it to dave, in about an hour, he found out what was wrong, i left my car with him for a little while, and he gave me back the car in perfect condition. i've been driving the car for the last 2 years with a lot of "spirited" driving (about 45K miles) and i have not have a single problem which was engine related. just took my car back to dave, he installed the pfc i got and tuned it and he got me to 280whp with even basic mods (highflow cat, intake, catback, downpipe. 12psi as long as you keep really, really close eye on the intake and water temps). so the engine is still running really strong. extremely happy with his work.
Old 08-06-06 | 08:51 PM
  #91  
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Dave has always been good to me. Years ago when I bought my first rx-7 he would be the only person I let touch it. I eventually learned to work on it myself and build my own motors, but I would recommend him to anyone that doesn't know how or want to do their own work. There is no magic to tuning. Anyone with enough knowledge about the workings of an engine, effects of air and fuel ratio, timing, and knowledge how to achieve the desired effect by manipulating a computer can learn. It is something learned through experience.
Old 08-07-06 | 10:48 AM
  #92  
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Yay. Another one of these.


I took my car to Dave last year due to some electrical gremlin issues. Anyways, he fixed it all up. He definitly knows his RX7's, and came across as a very honest person. The cost of his work was very fair. In fact, he cut be a break on things, and I didn't even ask.

My only complaint is that he is far... Definitly take my car back to him.


And chiming on the off-topics. I think it's very respectable that the other tuners are chiming in to answer the questions.

I personally had some issues with PFS back when they were in VA. But my issues were mainly with the owner at the time... Ray seems to be getting rave reviews, and he is way closer to me, so I may go to him someday... just wish the name of the shop was 'Ray's Super Cars' or something. But, times change... and people move on.
Old 08-07-06 | 10:49 AM
  #93  
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WoW... A KDR thread and only about half of the posts are on topic...

Well, I just got my car back from Dave and he reserected my baby. Yes, mine was one of those "pieces of ****" (spring will bring a cosmetic lift to my RX7). Hadn't been drivin in about 4 years.

I have nothing but good things to say...about the work, about the service, and about the time he spent explaining everything to me. And I didn't think he was expensive at all!!!

God...just thinking about the money I spent (WASTED!!!) at the local Mazda dealership (aren't those guys supposed to know how to work on Mazdas???)

AND the money I wasted on a NASCAR mechanic (that had rotary experience...or so he said)...

Dave fixed that whole mess up for me and did it very fast!!!

Thanks Dave... Next year I hope to have him do my suspension!!

Chas
Old 01-08-07 | 10:56 PM
  #94  
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well ive been doing some reading and im sending my motor/droping it of at KDR performance for a ton of work and i trust them i talked to Dave even thought it wasnt long but from his hard work i know its going to be a good job... its very hard to find a local place by me besides Acosta Motorsport and Mothers Performance (Which i didnt hear much good stuff about Mothers) that ill trust Dave with my motor... As tuning goes im not sure yet but its probly going to be done at KDR because from my understanding they wouldn't have a Dyno at their shop if they didnt know what their doing... and Dave just incase your wondering this is Greg I talked to you last night about the Bridge-Port 13b-Re from Nj
Old 01-09-07 | 06:50 AM
  #95  
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good to here man .My 13b-re 1/2br is still runnin awsome you will be in good hands!!
Old 01-09-07 | 08:34 PM
  #96  
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I just had my engine rebuilt & steetported at KDR (12/23/06 - when I got it back). I am still in the break in period, but so far I couldn't be happier. My car was one of the "pieces of ****" and still need cosmetic work, but the engine is now sound. I would trust Dave with my RX7 anytime. Like other people have said: he cut me breaks where he could through the whole process. I know I am still relatively new to rotaries, but he took the time to show me my engine through the whole process & took the time to answer all my questions whether it was me physically in his shop or over the phone or through the many emails I sent him.
Old 01-09-07 | 11:42 PM
  #97  
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yea thats what im going through first is get my exterior done, i have my body kit, wing, mirrors, fenders, Waiting for hood and getting the whole car repainted before i drop of a motor at KDR (still have to order my motor) maybe KDR could import me a motor... but im still debating if i should go wit the with a 13B-RE or a 20B
Old 01-10-07 | 07:47 AM
  #98  
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Originally Posted by LookThatsMe
yea thats what im going through first is get my exterior done, i have my body kit, wing, mirrors, fenders, Waiting for hood and getting the whole car repainted before i drop of a motor at KDR (still have to order my motor) maybe KDR could import me a motor... but im still debating if i should go wit the with a 13B-RE or a 20B
Well, the price difference between going with a 13B and a 20B is at least $10,000 more like $20,000 when all is said and done, so I'm sure that will factor into your decision
Old 01-14-07 | 03:59 PM
  #99  
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Originally Posted by GoodfellaFD3S
Well, the price difference between going with a 13B and a 20B is at least $10,000 more like $20,000 when all is said and done, so I'm sure that will factor into your decision
yes your right but the goal that im trying to reach is around 600-700hp which i could get with a 13b-re but its going to be a lot more work/tuning then with a 20B and in the long run to reach this goal will be around the same price range... also with the 20B ill reach it easier/faster, ill have the better torque, and the engine will stress less at that horsepower range, and the engine wont work that at that horsepower range... and like i said ima try to take a loan out for like 25-30k and thats all going to motor and tranny... i could get a longblock shipped to my house for like 3200, motor mounts 250, bell housing adaptor and a t56 tranny so say like 3.5k thats 7k so it leaves me with 18-23k for motor work and tuning

Last edited by LookThatsMe; 01-14-07 at 04:05 PM.
Old 01-14-07 | 05:35 PM
  #100  
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you are going to take a 30k loan out for the motor and tranny? i don't know you so just giving random internet advice...that is a really really stupid thing to do.
if you don't have the $30k now for the motor/tranny you want, either wait until you have the money, or get one cheaper that you can afford and have the cash for now. don't fund this type of work from a loan.
but good luck either way.


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