Greddy T-kit moderate mods
08-11-2010, 07:05 PM
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Greddy T-kit moderate mods
I've been trying to gather some numbers on what's safe to do in terms of FI.
I'm going to be installing the greddy kit on my shinka '05 in the next 3 weeks, however it comes with the emanage blue , which I've read here is simply not good.
I can buy the ultimate + harness , but I was wondering if people have tuned it with the Cobb AP instead? Is that the better option?
When I read about the greddy kit it says it operates between 5-6 psi, giving it around 50-60hp. What most people seem to say is that to go higher than that requires major upgrades. It seems that the injectors are good for 300 hp from reading on this board, is that whp or at the crank? If I wanted to go about 9psi or so boost, what would be a good setup? From what I understand here's the basic list, please give suggestions as to any experience you have with a brand or anything else I might need or where I'm wrong. I'd appreciate any suggestions, thanks.
-injectors
-fuel pump
-ignition
-upgraded IC ???
-better turbo ( ala mazda maniac upgrade)
-a different Cobb tune ( if that's the route to be taken)
Oh, I'm also curious those who have blown their tranny's , what's a relatively "safe" level of torque the transmission can take assuming now clutch dropping or random sillyness ?
-j
I'm going to be installing the greddy kit on my shinka '05 in the next 3 weeks, however it comes with the emanage blue , which I've read here is simply not good.
I can buy the ultimate + harness , but I was wondering if people have tuned it with the Cobb AP instead? Is that the better option?
When I read about the greddy kit it says it operates between 5-6 psi, giving it around 50-60hp. What most people seem to say is that to go higher than that requires major upgrades. It seems that the injectors are good for 300 hp from reading on this board, is that whp or at the crank? If I wanted to go about 9psi or so boost, what would be a good setup? From what I understand here's the basic list, please give suggestions as to any experience you have with a brand or anything else I might need or where I'm wrong. I'd appreciate any suggestions, thanks.
-injectors
-fuel pump
-ignition
-upgraded IC ???
-better turbo ( ala mazda maniac upgrade)
-a different Cobb tune ( if that's the route to be taken)
Oh, I'm also curious those who have blown their tranny's , what's a relatively "safe" level of torque the transmission can take assuming now clutch dropping or random sillyness ?
-j
08-11-2010, 08:16 PM
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welcome to the fi forums, as winglebeast said, ur best tool is to research. many of the questions u are asking have been answered over and over, im in the same boat as you are... a little further but same none the less. yes cobb has been used to tune the ecu with the greddy kit and very recommended, HOWEVER, cobb is no longer being sold for the rx8. your best bet is to find one in the for sale forum, the stock injectors are good to go up to around 300 whp, the only thing holding u back at that point is the greddy turbo. the turbo housing is too small for our application and cannot flow the amount of air past 300. i plan on disproving this but we will see where it leads me.
you should not have to swap the injectors on the stock turbo. ive seen people not replacing the fuel pump while going FI but it is good insurance to have incase there is a kink in your fuel supply. get yourself some NGK plugs(BUR9EQP), im not sure if its mandatory to run a cooler plug on the stock kit but im guessing its added insurance again.
the IC on the kit is good enough, if you swap turbos consider swaping IC also, there is enough facts around here to show that the IC becomes a restriction.
make sure you read the stickys at the top of the forum page, they have a wealth of information about this stuff.
you should not have to swap the injectors on the stock turbo. ive seen people not replacing the fuel pump while going FI but it is good insurance to have incase there is a kink in your fuel supply. get yourself some NGK plugs(BUR9EQP), im not sure if its mandatory to run a cooler plug on the stock kit but im guessing its added insurance again.
the IC on the kit is good enough, if you swap turbos consider swaping IC also, there is enough facts around here to show that the IC becomes a restriction.
make sure you read the stickys at the top of the forum page, they have a wealth of information about this stuff.
08-11-2010, 09:41 PM
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I have, the problem is it's very hard to distill the facts down to what is needed for me specifically. The general sticky threads are great, especially for the fixes, which it SEEMS if I could get my hands on an AP, would solve 2/3. Generally though, one topic will get very detailed to the point where it gets application specific. The problem is you'll see one thread where someone will mention " oh 300 hp definitely requires ingition upgrade" vs another where it's not even talked about. I also note a lot of the threads are necro, so I'm wondering if there are any changes. For instance, reading a lot of threads that deal with Cobb, show one problem or another tuning with it, but those are pretty old. I see in some tags that it is used, and some who now praise it, so I'm interested in knowing what the recent status quo is. I also read threads where people change ingition, fuel pump with an additional mod due to the split tank) differential upgrade, injector upgrade and so on.
My goal isn't 450 rwhp, more like 320 would be a great target.
My interested route is focused on shift my expenditures mostly on longevity with the greddy turbo with a slight increase in the boost from it.
Anyway, I get the annoyance and your need to pull out the face palm when a dumbass comes asking what is considered stupid questions, but bear in mind this isn't a game forum where it doesn't matter, I think you'll probably find more dumbass questions on a forum like this, even if they are 90% sure of the answers, just because they are scared of making a mistake on say, a 20k investment.
My goal isn't 450 rwhp, more like 320 would be a great target.
My interested route is focused on shift my expenditures mostly on longevity with the greddy turbo with a slight increase in the boost from it.
Anyway, I get the annoyance and your need to pull out the face palm when a dumbass comes asking what is considered stupid questions, but bear in mind this isn't a game forum where it doesn't matter, I think you'll probably find more dumbass questions on a forum like this, even if they are 90% sure of the answers, just because they are scared of making a mistake on say, a 20k investment.
08-11-2010, 09:47 PM
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welcome to the fi forums, as winglebeast said, ur best tool is to research. many of the questions u are asking have been answered over and over, im in the same boat as you are... a little further but same none the less. yes cobb has been used to tune the ecu with the greddy kit and very recommended, HOWEVER, cobb is no longer being sold for the rx8. your best bet is to find one in the for sale forum, the stock injectors are good to go up to around 300 whp, the only thing holding u back at that point is the greddy turbo. the turbo housing is too small for our application and cannot flow the amount of air past 300. i plan on disproving this but we will see where it leads me.
you should not have to swap the injectors on the stock turbo. ive seen people not replacing the fuel pump while going FI but it is good insurance to have incase there is a kink in your fuel supply. get yourself some NGK plugs(BUR9EQP), im not sure if its mandatory to run a cooler plug on the stock kit but im guessing its added insurance again.
the IC on the kit is good enough, if you swap turbos consider swaping IC also, there is enough facts around here to show that the IC becomes a restriction.
make sure you read the stickys at the top of the forum page, they have a wealth of information about this stuff.
you should not have to swap the injectors on the stock turbo. ive seen people not replacing the fuel pump while going FI but it is good insurance to have incase there is a kink in your fuel supply. get yourself some NGK plugs(BUR9EQP), im not sure if its mandatory to run a cooler plug on the stock kit but im guessing its added insurance again.
the IC on the kit is good enough, if you swap turbos consider swaping IC also, there is enough facts around here to show that the IC becomes a restriction.
make sure you read the stickys at the top of the forum page, they have a wealth of information about this stuff.
08-11-2010, 11:10 PM
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I have, the problem is it's very hard to distill the facts down to what is needed for me specifically. The general sticky threads are great, especially for the fixes, which it SEEMS if I could get my hands on an AP, would solve 2/3. Generally though, one topic will get very detailed to the point where it gets application specific. The problem is you'll see one thread where someone will mention " oh 300 hp definitely requires ingition upgrade" vs another where it's not even talked about. I also note a lot of the threads are necro, so I'm wondering if there are any changes. For instance, reading a lot of threads that deal with Cobb, show one problem or another tuning with it, but those are pretty old. I see in some tags that it is used, and some who now praise it, so I'm interested in knowing what the recent status quo is. I also read threads where people change ingition, fuel pump with an additional mod due to the split tank) differential upgrade, injector upgrade and so on.
My goal isn't 450 rwhp, more like 320 would be a great target.
My interested route is focused on shift my expenditures mostly on longevity with the greddy turbo with a slight increase in the boost from it.
Anyway, I get the annoyance and your need to pull out the face palm when a dumbass comes asking what is considered stupid questions, but bear in mind this isn't a game forum where it doesn't matter, I think you'll probably find more dumbass questions on a forum like this, even if they are 90% sure of the answers, just because they are scared of making a mistake on say, a 20k investment.
My goal isn't 450 rwhp, more like 320 would be a great target.
My interested route is focused on shift my expenditures mostly on longevity with the greddy turbo with a slight increase in the boost from it.
Anyway, I get the annoyance and your need to pull out the face palm when a dumbass comes asking what is considered stupid questions, but bear in mind this isn't a game forum where it doesn't matter, I think you'll probably find more dumbass questions on a forum like this, even if they are 90% sure of the answers, just because they are scared of making a mistake on say, a 20k investment.
Like you I will be going turbo very soon but I have all the parts already except for a few that are still back ordered. I have a thread here with the complete list of parts which is based on lessons learned by forum members here and my own goal of addressing all the weak links. This list is based on very extensive and obsessive research here on the forum.
08-12-2010, 12:01 AM
#7
-injectors (pair of blues from the AT rx8 in P2 posn will get you to 320)
-fuel pump BHR upgrade is recognised as the way to go although I'm still on stock
-ignition Again BHR is the recognised way to go but again I'm still stock without issues.
-upgraded IC ??? Greddy is fine to 300whp don't think about upgrading it till you get to that point .
-better turbo ( ala mazda maniac upgrade) MM UG not available so BNR 60-1 has been popular but without results . I'm leaning toward the BNR50trim till I see a decent result from the 60-1
-a different Cobb tune ( if that's the route to be taken) yep - need to get a cobb
Oh, I'm also curious those who have blown their tranny's , what's a relatively "safe" level of torque the transmission can take assuming now clutch dropping or random sillyness ? You can blow your tranny N/A by doing dumb sh*t but Chicken wafer made 325ftlbs before his went from too much torque. Mine sits around 250-260ftlbs and has survived 35000km so far
-j
-fuel pump BHR upgrade is recognised as the way to go although I'm still on stock
-ignition Again BHR is the recognised way to go but again I'm still stock without issues.
-upgraded IC ??? Greddy is fine to 300whp don't think about upgrading it till you get to that point .
-better turbo ( ala mazda maniac upgrade) MM UG not available so BNR 60-1 has been popular but without results . I'm leaning toward the BNR50trim till I see a decent result from the 60-1
-a different Cobb tune ( if that's the route to be taken) yep - need to get a cobb
Oh, I'm also curious those who have blown their tranny's , what's a relatively "safe" level of torque the transmission can take assuming now clutch dropping or random sillyness ? You can blow your tranny N/A by doing dumb sh*t but Chicken wafer made 325ftlbs before his went from too much torque. Mine sits around 250-260ftlbs and has survived 35000km so far
-j
08-12-2010, 12:33 AM
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Wow thanks a lot guys, I kind of feel better about what my plans were. Due to the high recommendation from this board, I already bought a Cobb AP from someone selling it in the for sale section here about 20 minutes ago.
Very interesting too, that you can use AT injectors, saves a lot of hassle since that'll be easy to find.
Very interesting too, that you can use AT injectors, saves a lot of hassle since that'll be easy to find.
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