Thanks, Dave you did a great job on the car. It was really nice to finally getr to meet you and spend all day at the shop. I learned a great deal just watching you work on my car. It was also cool smoking that excellent Camach Legen-Ario cigar. Well next time I drive up I'll bring a couple more cigars for you. Thanks again for the time and the great job you did on my car. I forgot to mention the dyno time thanks for the great tune.

 

I think i seen your car at JPR once???
I went to dave for a Dyno to... Great guy.....
Its a shame he isnt on the forum anymore, he has alot to offer for this place.

BTW whats your set up....???

 

thats a big dip @ 4500rpm

 

^ Yeah im wondering if its twin turbo??

 

Why would you only tune to 6800rpms?? Especially on a rotary. Still baffels me on his tuning after all these years.

 

James from JPR is also a great guy. He did a lot of work for me. BTW it's not twin turbo it's a single T4 89 Big sreet port zoom zoom. I believe the dip there has a lot to do with the huge spread in injector size. I had to throw 550 primary's in there for now and the 1650 secondary's. My 750 primay's took a crap so Dave had some 550's laying around so we threw them in. He did a great job tuning it that way for now the car runs excellent. I drove 150 miles today and yes my baby has heat lol.

 

do you always have to try and start a **** storm everytime him or his shop is mentioned? how old are you again?

 

I assume your talking about my comment. No **** storm started. Only asked a simple question. I don't want our forum members buffaloed into thinking their cars should be tuned to 6800rpms, then when they spin their cars to 7500rpms, they wonder why its broke. As far as my age, Im old enough to let everyone know on this forum the mistakes other shops make at customers expense. Anything else?

 

this is asking a question

and this is trying to bring your history into it

perhaps theres a reason its only tuned to 6800rpm, maybe thats what he asked for because he has a lower limiter?

not everyone wants to push there cars to the limit

 

You sir are only showing your lack of knowledge and ignorance on the subject of tuning. 6800rpms? Do you know the meaning of limits? If one tunes a car, it should be tuned 100%, not 65%. I can bring my history in on any thread I please, if it helps someone from making the same mistakes.

 

see the interesting thing about this thread, is he doesnt say what engine he has does he? you automatically assume its an rew, where as me owning an FC know that if he has an s4 or lower engine, it would only redline at 7000rpm and NOT 8000 like the newer engines

sure you could run it all the way through redline.....but like stated above..maybe he doesnt want to push his car to the limits

 

Seriously? Look at that graph and tell me there are not a few things that look "off" about it.

Besides what has been mentioned already, the car made 320 whp with a t4 turbo and a street port? Seems a bit low? The AFRs look a little interesting also...

Glad the OP is happy with everything though. That is what is most important.

-Austin

 

Im not getting into a pissing match, but again, your wrong. His engine is ported therefore pushing his powerband beyond your "stock" redline. And being a rotary, your not going to push it to its limits running the rpm band to 9K. Your well beyond peak torque.

 

very true....
I think hellgast is just worked up because we know dave is a good guy and always has the customers best interest in mind. And it just seemed like unfair judgment to question his tuning. Especially since dave isnt a member anymore to explain his methods....

I trust him, and im glad lous does too.... Dave is overlooked in the community. And most people dont realize how much knowledge has

 

Dave seems like a great guy and a great mechanic from my experience with him. But i dont think that anyone can over look the issues some have had with his tuning in the past. This graph just doesnt help his cause...

-Austin

 

Point taken.....
But im sure alot of tuning places have had the same bad experences....
I hear and seen nothing but good results from going to dave. It suks cause some customers have the power to influence others.... And because of there stubbornness they send a bad image out for others.

 

One more thing I just noticed. The a/f ratio at 6800rpm is almost 13/0!! Can you say boom?? As soon as the car is under load his a/f ratio will jump another .5 higher so he will be even leaner! Please tell me Im wrong, lol...

 

Bullshit. Even if it was an S4 doesn't mean it can't be run past 7000 RPM. Just because it has smaller castings doesn't mean it's made of tissue! Mine runs daily to 8500 no problems. 320 whp is not going to break an S4. ****, a hybrid could likely make that number on stock ports!

But, as Ernie said, that thing was climbing to 13 AFR at 6800 RPM, what if he misses a shift, takes it too far, etc? What will the AFR be like at 7500 RPM in case it ever goes there? If you don't tune it, you won't know until it's too late.

I have no experience with Dave or KDR, nor do I know of his past tuning experiences at all, my opinion here is strictly on this dyno.

 

ooo single turbo on a RX2 like it.

One question that has not been asked, what boost was being run on the dyno, the figures could be low because not a lot of boost is being run through it?

if its 10 psi then its about right for those power figures, though it does need a little bit more fuel I say on boost, it should be 12:1 to 11:5 AFR assuming boost is 14psi or below. It needs to be run to at least 7.5K rpm on the dyno just to make sure it has enough fuel up top.

Remember gasoline/petrol makes power if there is not enough of it the mix you will lose power.

But 320 bhp in an rx2 must feel very rapid, liking the old skool

 

No comment guys. Good luck with your cars

 

I've never met Dave or seen any of his work so really can't comment.

But looking at your cars tune from the dyno sheet looks to me like the staging is not set/tuned properly and it's going way rich when the secondaries kick in.
Also looks a bit lean for me on the top end..

What ecu are you using?

Either way as blitz stated your car must be a handful to drive with 320+ hp...

 

Well, that's what I was trying to explain 550 primary and 1650 secondary to much gap in between. The staging had to be changed to compensate for lack of fuel volume. I didn't want to push it to much on the dyno for that reason. That was only 10lbs of boost I've ran that motor at 20 lbs on pump gas. I will go back to see Dave after I put in my 750 primary. Then I will retune at 20lbs on race gas and I will update. Microtech Ltx-8s the car is awsome to drive this is the second day I commuted to work in it. The 100 mile round trip is always fun.

 

Regardless, it's great that you're happy with the car and service, that's what counts. If problems do arise though, it would be nice to know that he's going to warranty it or something.

 

First off Lou your rx is beautiful... +1 to what they are saying about your afr's a bit lean up top. Becarefull I wouldn't push it up top.

 

ErnieT your right, im sure dave is a nice guy, but that car should of been taken to ray at PFS.
It would of had a better tune and more power!