Mild single turbo?
07-26-10, 05:20 PM
#78
Mark here I'll explain it in a different way because for some reason you seem to take this whole non-sequential personally.
Yes in my experience the nonseq "sucks ***" in comparison to sequential. But that does NOT mean that non seq is SLOW nor that it sucks OVERALL. It is ONLY a comparison between those two setups. That's it man, there is no reason to prove that you have never been beaten because frankly, that is not relevant.
Yes in my experience the nonseq "sucks ***" in comparison to sequential. But that does NOT mean that non seq is SLOW nor that it sucks OVERALL. It is ONLY a comparison between those two setups. That's it man, there is no reason to prove that you have never been beaten because frankly, that is not relevant.
07-26-10, 05:22 PM
#79
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Originally Posted by TRWeiss
I hear you there, and I agree that everything is relative. But I think Montego was referring to your setup with respect to the rest of the RX7 community, in which case no, you are not that fast.
07-26-10, 05:24 PM
#80
I went back a page to see and it's my mistake. Montego was replying to another member, not you when he said "just part of the pack." I interpreted your "the pack is all behind me" comment as being directed toward other members on this board, not toward vehicles in NC, since that's what Montego was referring to - RX7s...That's the only reason I called you out on it.
My mistake.
My mistake.
07-26-10, 11:18 PM
#81
He asked for a video, so why not give him one? 
Truthfully, I'd like to see a non-laggy non-sequential setup. 
Speaking from personal experience of going from sequential to non-sequential to single turbo, non-sequential is undeniably more laggy than sequential. There's just no way around it. The factory twin turbo setup was DESIGNED to minimize lag, so when you go non-sequential and have 1 rotor spooling 1 turbo and the 2nd rotor spooling the 2nd turbo, it's GOING to lag. I have a moderate street port and the lag was certainly noticeable when I was non-sequential. However, I did learn to downshift/live with it/etc...Regardless though, the lag WAS there...FWIW I was running the stock twins @ 15 psi making 370RWHP.
As long as you size your single turbo properly, and go with the proper porting, you're not going to lag anymore than a non-sequential setup. I know I get full boost in my 500R by 4k rpms. Again, just speaking from personal experience, a single turbo is not going to lag anymore than the twins do (non-sequential) unless you go with some ridiculous a/r / size the turbo totally wrong.
Just MHO.
Truthfully, I'd like to see a non-laggy non-sequential setup. Speaking from personal experience of going from sequential to non-sequential to single turbo, non-sequential is undeniably more laggy than sequential. There's just no way around it. The factory twin turbo setup was DESIGNED to minimize lag, so when you go non-sequential and have 1 rotor spooling 1 turbo and the 2nd rotor spooling the 2nd turbo, it's GOING to lag. I have a moderate street port and the lag was certainly noticeable when I was non-sequential. However, I did learn to downshift/live with it/etc...Regardless though, the lag WAS there...FWIW I was running the stock twins @ 15 psi making 370RWHP.
As long as you size your single turbo properly, and go with the proper porting, you're not going to lag anymore than a non-sequential setup. I know I get full boost in my 500R by 4k rpms.
Again, just speaking from personal experience, a single turbo is not going to lag anymore than the twins do (non-sequential) unless you go with some ridiculous a/r / size the turbo totally wrong.Just MHO.
i originaly recomended that for others that are thinking of going single turbo but only want 50-100hp more... to save them some trouble and money
thing is no one claims that non sequential setup is not lagy people just need to learn how to drive with it....
07-27-10, 12:51 AM
#82
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I don't think it's laggy. Again, this engine will never be a low end monster and 5th gear is useless. Let it rip. Rotaries and made to rev. Non-sequential delivers a very broad powerband from 3400 up. Anything more than about 400 hp isn't going to add much to my driving experience because I'm just going to be struggling for traction. It's been proven that these cars only need about 350-400 to tear up a roadcourse.
07-27-10, 01:01 AM
#83
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Is this engine more reliable at 23 psi? I highly doubt it. Sure, water injection helps, but all it takes is one little thing to go wrong at that boost level and you're done. I've detonated at 16-17 psi and the motor lived another day. 500 hp is pushing this engine extremely hard, past the point of true reliability imo, and also based on the general track record I've seen on this forum. I've seen these high hp dyno queens come and go on this forum for years, the owners usually crash or end up selling. Yes, Howard does it, but he has a ton of equipment on his car and alot more experience (plus if the engine pops, it's not a big deal for him). There is ALWAYS someone faster, that cycle never ends. I just enjoy driving.
07-27-10, 07:16 AM
#84
I'm running Nitto NT 555Rs (285/35zr18s) and I couldn't be happier with them, quite honestly.As far as reliability goes, you say "is the motor anymore reliable @ 23 psi?" Obviously it's not more reliable, but as you stated I've got a dual nozzle water/meth setup by coolingmist with a variable pressure pump for added insurance.
You are correct that if that fails the motor *could* be in trouble, but we did try to take this into consideration. Dave @ KDR is a very conservative tuner, so we went with as safe of a tune as possible. Sure I could've made more power, but I'd rather be safe than sorry. 
What really sucks is that @ 23 psi my turbo is JUST starting to get into its efficiency range, but I'm running out of fuel due to my stock fuel lines.
Either way, my AFRs are safe, and I just wanted to make over 500RWHP so I'm happy! Not to mention, with minimal lag the car still has a very useable powerband! I make 350RWTQ @ 4200 rpms. 
07-27-10, 10:14 AM
#86
This is geting to be pointless... Driving a NS setup car is like driving a single turbo car ...you got to be in the right gear and they will spool up fast...lag is minimal... And this is a god way to go if you have over boosting problems and wanna make things simple and I wouldn't go more then 15psi on NS setup
Ok when I was talking about high boost I was talking about my car...and that's what I am going to do...got it now...
Ok when I was talking about high boost I was talking about my car...and that's what I am going to do...got it now...
07-27-10, 05:54 PM
#87
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I don't think it's laggy. Again, this engine will never be a low end monster and 5th gear is useless. Let it rip. Rotaries and made to rev. Non-sequential delivers a very broad powerband from 3400 up. Anything more than about 400 hp isn't going to add much to my driving experience because I'm just going to be struggling for traction. It's been proven that these cars only need about 350-400 to tear up a roadcourse.
07-27-10, 07:23 PM
#88
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Wow, how do you confuse 350 and 500 whp? That is a jump.
I have to say that Dave does my tuning too and I'm currently sitting at tight around 350 with his conservative tune. It is really fun in an FB--makes for great looks on Mustang owners faces when you pass them!
I have to say that Dave does my tuning too and I'm currently sitting at tight around 350 with his conservative tune. It is really fun in an FB--makes for great looks on Mustang owners faces when you pass them!
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