The newest 100% bolt on Greddy Hybrid turbocharger!
#876
Boosted Kiwi
iTrader: (2)
Dyno is helpful, but simple g/s log will do for me.
Anyway. I asked MM for advice, he didn't respond (that's ok) so I ordered BNR and waiting.
Got a used greddy kit with bad crack and hole in the manifold. Got it repaired but don't know how will hold. But I've sourced some new ones for grabs.
Ready to play in a couple of weeks.
Anyway. I asked MM for advice, he didn't respond (that's ok) so I ordered BNR and waiting.
Got a used greddy kit with bad crack and hole in the manifold. Got it repaired but don't know how will hold. But I've sourced some new ones for grabs.
Ready to play in a couple of weeks.
And with the manifold - a older repaired one may actually be a better bet than a new one .
#878
1st RX8 BNR Turbo Owner..
iTrader: (1)
I've seen more than one person produce logs showing over 400g/s then fail to break 300whp at the Dyno so I wouldn't be putting too much faith in a g/s log without at least one dyno to correlate it to .
And with the manifold - a older repaired one may actually be a better bet than a new one .
And with the manifold - a older repaired one may actually be a better bet than a new one .
#880
I've got a fully ready to go turbo setup..New intercooler (30x10x3), TiAL bov, new couplers, fuel pump, BHR ignition, MS intake and accessport, and an engine with 50 miles on it, and the vertex kit being put on in the body shop now.
I want to do this upgrade, but I'm not sure if I can justify the expense of the turbo as well as buying new injectors if the gains will be minimal.
I guess the only pre-req mod I don't have is water/methanol, which would definitely happen before an upgraded turbo in any sense. The best part is I've got a good buddy who is a tuner at a local shop and told me whenever I get my car back and ready to go to bring it down to the Dyno on a Sunday and we'll play with it all day.
I've been on the fence for a while now
I want to do this upgrade, but I'm not sure if I can justify the expense of the turbo as well as buying new injectors if the gains will be minimal.
I guess the only pre-req mod I don't have is water/methanol, which would definitely happen before an upgraded turbo in any sense. The best part is I've got a good buddy who is a tuner at a local shop and told me whenever I get my car back and ready to go to bring it down to the Dyno on a Sunday and we'll play with it all day.
I've been on the fence for a while now
Last edited by Frosty288; 08-14-2010 at 06:05 PM.
#882
Pull My Finger
iTrader: (7)
you should really consider sending your injectors and having the caps removed most of the turbo owners go this route including myself
http://injector-rehab.com/
Prices are great
http://injector-rehab.com/
Prices are great
#884
Boosted Kiwi
iTrader: (2)
Reverse is true for a vac. leak after the maf but before the turbo . Extra air enters the system that has not been measured therefore a lean condition can result .
#885
1st RX8 BNR Turbo Owner..
iTrader: (1)
simple - If you have a boost leak the air that leaks out still went past the maf so has been measured but never makes it to the engine . This leads to a rich condition.
Reverse is true for a vac. leak after the maf but before the turbo . Extra air enters the system that has not been measured therefore a lean condition can result .
Reverse is true for a vac. leak after the maf but before the turbo . Extra air enters the system that has not been measured therefore a lean condition can result .
#886
Boosted Kiwi
iTrader: (2)
It's a matter of degrees . Sure an uncalibrated maf is an issue and can hamper tuning significantly . But in all probability if you are seeing 400g/s maf but only 290whp then it's a boost leak . You would have to make one huge ***** up to make that much of an error with calibration .
#887
Illudium Q-36 Space Moderator
iTrader: (1)
I don't even know what you guys are fighting about.... I tuned the damn thing, and I'm telling you there is a huge boost leak and therefore the MAF scale was off (actually reading low since I was trying to back fuel out of it). In vacuum it was ok, we got the variation down to almost zero.
But the scale went haywire in boost (for obvious reasons), so I ended up scaling the P2 injector to get AFR's in line (although rich). At the end of the day, tuning a car with a boost leak is a big no-no; and I feel bad for not having more time to fully inspect the car while I was there the day prior.
But the scale went haywire in boost (for obvious reasons), so I ended up scaling the P2 injector to get AFR's in line (although rich). At the end of the day, tuning a car with a boost leak is a big no-no; and I feel bad for not having more time to fully inspect the car while I was there the day prior.
Last edited by Kane; 08-15-2010 at 04:15 AM.
#888
1st RX8 BNR Turbo Owner..
iTrader: (1)
It's a matter of degrees . Sure an uncalibrated maf is an issue and can hamper tuning significantly . But in all probability if you are seeing 400g/s maf but only 290whp then it's a boost leak . You would have to make one huge ***** up to make that much of an error with calibration .
#890
Boosted Kiwi
iTrader: (2)
I am 100% sure that when I made 290whp my g/s were NOT over 400. So I am a bit confused if you think I am referring to my car when I am saying that the MAF needs to be dialed in correctly. I am not saying in no way shape or form that I didnt have a boost leak because I did and when I fixed it I know that I had a 330whp car...based off my know g/s=whp at the dyno with Kane.
Last edited by Brettus; 08-15-2010 at 03:42 PM.
#891
Tailgaters beware
I am 100% sure that when I made 290whp my g/s were NOT over 400. So I am a bit confused if you think I am referring to my car when I am saying that the MAF needs to be dialed in correctly. I am not saying in no way shape or form that I didnt have a boost leak because I did and when I fixed it I know that I had a 330whp car...based off my know g/s=whp at the dyno with Kane.
Well, I will definitely be buying the Greddy from RX7store and having them do the install. I'm sure by the time I'm ready to do a turbo upgrade there will be more data available on the BNR.
#892
1st RX8 BNR Turbo Owner..
iTrader: (1)
to be honest, my car has literally been sitting in my parking garage since Jan of this year... I am just having too much fun making easy power with my other car. Although, here pretty soon I think I will have the engine looked at in detail then decide whether or not to keep it stock or just flat out sell the darn car.
#893
Asshole for hire
iTrader: (1)
Join Date: Jun 2006
Location: Colfontaine, Belgium
Posts: 3,214
Likes: 0
Received 3 Likes
on
3 Posts
I've seen more than one person produce logs showing over 400g/s then fail to break 300whp at the Dyno so I wouldn't be putting too much faith in a g/s log without at least one dyno to correlate it to .
And with the manifold - a older repaired one may actually be a better bet than a new one .
And with the manifold - a older repaired one may actually be a better bet than a new one .
#894
Boosted Kiwi
iTrader: (2)
True - unfortunately those who tout the 'flow is king' paradigm often forget that boost leaks and calibration errors make the known air part of that equation a lottery for many setups .
Which is partly why I kept the pressure vs flow argument going ...
Which is partly why I kept the pressure vs flow argument going ...
Last edited by Brettus; 08-15-2010 at 11:52 PM.
#900
Asshole for hire
iTrader: (1)
Join Date: Jun 2006
Location: Colfontaine, Belgium
Posts: 3,214
Likes: 0
Received 3 Likes
on
3 Posts
I've seen more than one person produce logs showing over 400g/s then fail to break 300whp at the Dyno