Mild single turbo?
07-24-10, 01:04 PM
#51
Back on topic: can anyone provide some feedback on this ball bearing 35R kit? Seems like Jason always has good prices.
http://www.rx7store.net/product_p/gt35r%20kit.htm
http://www.rx7store.net/product_p/gt35r%20kit.htm
jason is redesigning the kit right now with that new exaust manifold as it moves the turbo a bit
he is traying to make better downpipe he is going to send one out to me to test fit it for him...
the new exhaust manifold is much better...the ports on it actually match up with gt35r...i use steel gasket with it and no problems at all compared to the old manifold i went through 3 gaskets within 2000 miles....
07-24-10, 04:41 PM
#54
I didn't read everything posted, but I've had sequential, non sequential (rich and poor mans) and a few different single turbo setups all on the same car.
I don't too much mind the lag my big single makes. I gladly accept the extra power. Wouldn't be ideal for a road course, but straight line and high speed runs, it's a monster.
Poor mans non sequential is just worthless. Rich mans non sequential is better but still nothing impressive. There's a host of singles that build boost just as quickly with a much higher top end.
Even if you port the hell out of your engine and get a couple hundred RPM's faster spool, it will just feel flat on top since the turbo's wont supply enough air for the engine.
I'm a single turbo guy all the way, but between sequential and non sequential I see little benefit to going non sequential. Sure you pick up a little more flow on top, but there's some sequential systems done right, that make very respectable power while having basically no lag. This makes for a very fun car.
The only way to get some better thrills is to add an extra 150+ Hp on top of it and feel the car get squirrelly in 4th gear.
I don't too much mind the lag my big single makes. I gladly accept the extra power. Wouldn't be ideal for a road course, but straight line and high speed runs, it's a monster.
Poor mans non sequential is just worthless. Rich mans non sequential is better but still nothing impressive. There's a host of singles that build boost just as quickly with a much higher top end.
Even if you port the hell out of your engine and get a couple hundred RPM's faster spool, it will just feel flat on top since the turbo's wont supply enough air for the engine.
I'm a single turbo guy all the way, but between sequential and non sequential I see little benefit to going non sequential. Sure you pick up a little more flow on top, but there's some sequential systems done right, that make very respectable power while having basically no lag. This makes for a very fun car.
The only way to get some better thrills is to add an extra 150+ Hp on top of it and feel the car get squirrelly in 4th gear.
07-24-10, 08:37 PM
#55
downpipe don't seal properly where it meets the rest of the exhaust... as new manifold moves the turbo bit more to the front and levels it out more....
you can use double gasket to get it to seal but it wont last long....just as the old manifold gaskets didnt....
if you all ready got the new manifold buy a steel gasket for it....so far for me no problems there...
i am going to test fit his new design for down pipe and give him some feed back...
but i am just sick of bullshit and i am building my own exhaust, converting everthing to vband flange(update the technology lil bit)...so there wont be any more gaskets...also i am routing the wastgate back in - new manifold brings it closer to the engine bay....
i guess every one can see now how much work this cheaper kits realy are...and i thought to, that they are just bolt on and go...yea right...
you can use double gasket to get it to seal but it wont last long....just as the old manifold gaskets didnt....
if you all ready got the new manifold buy a steel gasket for it....so far for me no problems there...
i am going to test fit his new design for down pipe and give him some feed back...
but i am just sick of bullshit and i am building my own exhaust, converting everthing to vband flange(update the technology lil bit)...so there wont be any more gaskets...also i am routing the wastgate back in - new manifold brings it closer to the engine bay....
i guess every one can see now how much work this cheaper kits realy are...and i thought to, that they are just bolt on and go...yea right...
07-24-10, 08:55 PM
#56
It fits but we have to use a thicker gasket to seal. The redesign is changing it so you don't have to use a thicker gasket or double gasket. The kit will bolt up with no problems but may have to go thicker gasket at the downpipe depending on the midpipe you are using.
07-24-10, 10:56 PM
#57
Yes, on 93 pump gas, with water injection. Yes, on KDR's dyno. Dave's worked on my car since forever and the pull was strictly to compare a cat/no cat setup ie. there was no reason to not give me an accurate number. This was the no cat number. It was my cat and my mid-pipe.
I'm not interested in the incessant flame wars that go on here, and seldom post because of that. I think (but may be wrong) that SAE corrections have to do with temperature and barometric pressure. The day the pull was done was a very average fall day. I'm too lazy to find the dyno sheet and see what it says about SAE correction.
I'm not interested in the incessant flame wars that go on here, and seldom post because of that. I think (but may be wrong) that SAE corrections have to do with temperature and barometric pressure. The day the pull was done was a very average fall day. I'm too lazy to find the dyno sheet and see what it says about SAE correction.
07-25-10, 09:35 AM
#58
Yes, on 93 pump gas, with water injection. Yes, on KDR's dyno. Dave's worked on my car since forever and the pull was strictly to compare a cat/no cat setup ie. there was no reason to not give me an accurate number. This was the no cat number. It was my cat and my mid-pipe.
I'm not interested in the incessant flame wars that go on here, and seldom post because of that. I think (but may be wrong) that SAE corrections have to do with temperature and barometric pressure. The day the pull was done was a very average fall day. I'm too lazy to find the dyno sheet and see what it says about SAE correction.
I'm not interested in the incessant flame wars that go on here, and seldom post because of that. I think (but may be wrong) that SAE corrections have to do with temperature and barometric pressure. The day the pull was done was a very average fall day. I'm too lazy to find the dyno sheet and see what it says about SAE correction.
bridge port.....i made 346rwhp @12 psi water injection stock motor and ports
07-25-10, 10:09 AM
#59
Banned. I got OWNED!!!
Join Date: Mar 2009
Location: NC
Posts: 1,045
Likes: 0
Received 0 Likes
on
0 Posts
Jason's new 35R kit sounds like the way to go - I do plan to go single but want to make sure it's not going to lag significantly. 400 rwhp is all I need to be happy.
07-25-10, 10:12 AM
#60
Banned. I got OWNED!!!
Join Date: Mar 2009
Location: NC
Posts: 1,045
Likes: 0
Received 0 Likes
on
0 Posts
Do you really need water at 12 psi? I can't see getting into a risk of detonation below 15 psi (especially on a single turbo, which probably runs a bit cooler charge temps). Most say 17 psi with quality 93 octane fuel, like Shell V Power.
07-25-10, 07:50 PM
#64
s5 turbo alone simply can't outflow the stock twins. 250 is a good, strong number to expect from one. People have gotten higher than that but they're not flowing any more cfm at a certain psi no matter how hard you crank the boost controller. Not unless you change the compressor housing/wheel. Good idea though.
07-25-10, 07:54 PM
#65
Exhaust flange leak tip. Have the turbine housing flange and manifold flange machined perfectly flat and run NO gasket. Vband everything is a really good solution and is fairly inexpensive. Less of a headache to work on a v-band system too. No pesky bolts.
07-26-10, 01:08 AM
#66
at next tune i will go for 17psi or might try 20psi
07-26-10, 01:15 AM
#67
s5 turbo alone simply can't outflow the stock twins. 250 is a good, strong number to expect from one. People have gotten higher than that but they're not flowing any more cfm at a certain psi no matter how hard you crank the boost controller. Not unless you change the compressor housing/wheel. Good idea though.
07-26-10, 01:23 AM
#68
I agree with everything but the "cheaper" part. There's hidden costs.
Exhaust flange leak tip. Have the turbine housing flange and manifold flange machined perfectly flat and run NO gasket. Vband everything is a really good solution and is fairly inexpensive. Less of a headache to work on a v-band system too. No pesky bolts.
Exhaust flange leak tip. Have the turbine housing flange and manifold flange machined perfectly flat and run NO gasket. Vband everything is a really good solution and is fairly inexpensive. Less of a headache to work on a v-band system too. No pesky bolts.
07-26-10, 01:49 AM
#69
i might put out my own full exhaust system that would be sold with single turbo kit as pakage...
or bolt on exhaust for stock twins...
turbo kit that would come with
GT35R
or
GT3071R or 76R internal wastegate....for people not obsessed with power....
manifold and gaskets
full exhaust system v-band...down pipe, mid pipe,mufler, you pick optional high flow cat diffrent muflers or streight pipe...
all braded lines and fitings for oil and coolant
for 3000$ - 3500$ max
will start work on one concept 8/01/2010
or bolt on exhaust for stock twins...
turbo kit that would come with
GT35R
or
GT3071R or 76R internal wastegate....for people not obsessed with power....
manifold and gaskets
full exhaust system v-band...down pipe, mid pipe,mufler, you pick optional high flow cat diffrent muflers or streight pipe...
all braded lines and fitings for oil and coolant
for 3000$ - 3500$ max
will start work on one concept 8/01/2010
07-26-10, 06:37 AM
#70
I have the 35r t4 .82 with a streetport, spools really really fast. Doesn't feel like i sacrificed any low end punch or response, has alot more power on top end. I've never had the car on a dyno or a dragstrip and probably never will so I have no numbers or times to share, but it is a great turbo if you do not want lag.
07-26-10, 03:10 PM
#71
Tell you what mark put or shut up. These days everyone's phone has video option so get your revs up to 3500 RPMS (past your threshold) gun it and show us your lagless non sequential twins.
Like this guy. The guy is claiming that his set up is not laggy. If yours resembles his response... well dude you're laggy in comparison to the non-seq guys.
http://www.youtube.com/watch?v=rdjh3EY6shU
whaa happened here? Boost response out of the corners was the topic of conversation so what does your straight line achievements have to with anything?
i spank new zo6 in streight line i dont need to wait for the corner...you think z06 would keep up with me in corners...
but my car the way it is right now with GT35R single turbo feels like a wapon i cant explaint it....i let my friend drive it and he
called it a "raging bull"...
but my car the way it is right now with GT35R single turbo feels like a wapon i cant explaint it....i let my friend drive it and he
called it a "raging bull"...
Also you seem to think very highly of your car. As if it's something special (calling other people out and ****)... This thread was started in the third gen section and guess what we all have FDs. **** these days a GT35R FD is extremely common as I have one and few others in this thread do too. Go out and get a 20B and then you can boast all you want, until then you are just part of the pack.
Last edited by Montego; 07-26-10 at 03:14 PM.
07-26-10, 04:27 PM
#72
Banned. I got OWNED!!!
Join Date: Mar 2009
Location: NC
Posts: 1,045
Likes: 0
Received 0 Likes
on
0 Posts
*sigh* you're truly annoying....just drop it, no one gives a ****
I believe in downshifting. The sequential system has a slight advantage for highway rolls but you have to be in the midrange to get any real power out of these engines, everyone knows this...."low end torque" is a fantasy related to the 13b
*sigh* round and round....same stupid comments, the only thing that "sucks ***" might be your slow car
So I can post a youtube vid like you? What is this, jr. high? My car is plenty fast, I never have any problem in the proper gear.
Again, I defined boost lag. It's not complex. My car doesn't "lag" above 3400 rpm.
The pack is all behind me
It really sucks *** compared to non sequential twins.
Tell you what mark put or shut up. These days everyone's phone has video option so get your revs up to 3500 RPMS (past your threshold) gun it and show us your lagless non sequential twins.
I explicitly stated it was boost lag
until then you are just part of the pack.
07-26-10, 04:44 PM
#73
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.
07-26-10, 04:46 PM
#74
then why did you start this ****? Or did you forget? It's only annoying because you backed yourself into a corner. The bullshit you claim I swear.
blah blah blah...
yeah but given that I have a GT35R and you DON'T my slow car is FASTER than yours...
I'm asking you to prove what you claim because at this this point its a he said/she said situation. The main function of this forum is for reliable information not fantasy mods. You claim ZERO lag when in fact the whole purpose that mazda designed the sequential system was to eliminate lag. But yeah you devised a setup that spools just as quickly as mazda using the same stock turbos. Bullshit.
If it wasn't BS you would do it in heart beat as it would solidify your claim and then EVERYONE on nonseq twins would use your findings/setup as gospel. But you don't, and so far all you do is talk. Talk is cheap my friend.
Yet you refuse to prove it. Yeah that's what I thought...
Yeah but they be a little farther back if you were sequential. ha ha
You know so would I. The better our cars are with stock components the better it is for all of us.
The thing is people have claimed for years that their non seq set up has a low boost threshold and that they hardly any lag or in this case NO lag. I have yet to see any proof of that in this forum or in real life. Seriously WTF why is it so hard to prove? It would be real nice to put this to bed.
If it wasn't BS you would do it in heart beat as it would solidify your claim and then EVERYONE on nonseq twins would use your findings/setup as gospel. But you don't, and so far all you do is talk. Talk is cheap my friend.
Yeah but they be a little farther back if you were sequential. ha ha
You know so would I. The better our cars are with stock components the better it is for all of us.
The thing is people have claimed for years that their non seq set up has a low boost threshold and that they hardly any lag or in this case NO lag. I have yet to see any proof of that in this forum or in real life. Seriously WTF why is it so hard to prove? It would be real nice to put this to bed.
Last edited by Montego; 07-26-10 at 05:12 PM.
