SPC Horsham Project IS 550
SPC Horsham Project IS 550
19-10-2017, 03:22 PM
![[Image: LexuS-Copy.jpg]](http://i65.photobucket.com/albums/h204/Sparkystav/LexuS-Copy.jpg)
Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.
OutlawJapClub Admin Team
Sparkystav
19-10-2017, 03:22 PM #171looks good lads!
Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.
OutlawJapClub Admin Team
20-10-2017, 12:17 PM
dimis Good to hear this. :w00t: I cannot believe that OEM rods can handle so much power!
Hi Dimis, regarding your concern over the strength of the std conrods. I have seen a few failed motors the same as I guess you and most other people have on the internet on various forums. All the failures IMO have been down to piston failure and not the conrod. What I mean by this is that the piston below the pin has failed due to either over rev or detonation pressure causing the pin to part company with the piston. The rod and pin then flails round until the top of the rod literally parts company as it has no option but to do so. The remaining section of rod then punches through the water jacket and outer block face.
IMO I think that even at the boost level we are currently running ( 1bar ) the rods should be safe with the std factory rev limit imposed by the std ecu. The killer for conrods is rpm not boost. The factory 1g gte conrods all be it visually superior are IMO probably not the saving point as it is more likely the pistons ( 1g gte ) that are helping the cause. However you can guess what parts we stock in uprated quality materials.
Regards Ike
SPChorsham.com
20-10-2017, 12:17 PM #172dimis Good to hear this. :w00t: I cannot believe that OEM rods can handle so much power!
Hi Dimis, regarding your concern over the strength of the std conrods. I have seen a few failed motors the same as I guess you and most other people have on the internet on various forums. All the failures IMO have been down to piston failure and not the conrod. What I mean by this is that the piston below the pin has failed due to either over rev or detonation pressure causing the pin to part company with the piston. The rod and pin then flails round until the top of the rod literally parts company as it has no option but to do so. The remaining section of rod then punches through the water jacket and outer block face.
IMO I think that even at the boost level we are currently running ( 1bar ) the rods should be safe with the std factory rev limit imposed by the std ecu. The killer for conrods is rpm not boost. The factory 1g gte conrods all be it visually superior are IMO probably not the saving point as it is more likely the pistons ( 1g gte ) that are helping the cause. However you can guess what parts we stock in uprated quality materials.
Regards Ike
20-10-2017, 12:21 PM
SPChorsham.com Hi Dimis, regarding your concern over the strength of the std conrods. I have seen a few failed motors the same as I guess you and most other people have on the internet on various forums. All the failures IMO have been down to piston failure and not the conrod. What I mean by this is that the piston below the pin has failed due to either over rev or detonation pressure causing the pin to part company with the piston. The rod and pin then flails round until the top of the rod literally parts company as it has no option but to do so. The remaining section of rod then punches through the water jacket and outer block face.Interesting info Ike, thanks :thumbup1:
IMO I think that even at the boost level we are currently running ( 1bar ) the rods should be safe with the std factory rev limit imposed by the std ecu. The killer for conrods is rpm not boost. The factory 1g gte conrods all be it visually superior are IMO probably not the saving point as it is more likely the pistons ( 1g gte ) that are helping the cause. However you can guess what parts we stock in uprated quality materials.
Regards Ike
If it's the pistons/pins that are the problem, how is your motor going to handle the power running on standard pistons/pins ? Or have those been changed ?
![[Image: Sig-enginebay.jpg]](http://i5.photobucket.com/albums/y179/SteveHammatt/Sig-enginebay.jpg)
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
20-10-2017, 12:21 PM #173SPChorsham.com Hi Dimis, regarding your concern over the strength of the std conrods. I have seen a few failed motors the same as I guess you and most other people have on the internet on various forums. All the failures IMO have been down to piston failure and not the conrod. What I mean by this is that the piston below the pin has failed due to either over rev or detonation pressure causing the pin to part company with the piston. The rod and pin then flails round until the top of the rod literally parts company as it has no option but to do so. The remaining section of rod then punches through the water jacket and outer block face.Interesting info Ike, thanks :thumbup1:
IMO I think that even at the boost level we are currently running ( 1bar ) the rods should be safe with the std factory rev limit imposed by the std ecu. The killer for conrods is rpm not boost. The factory 1g gte conrods all be it visually superior are IMO probably not the saving point as it is more likely the pistons ( 1g gte ) that are helping the cause. However you can guess what parts we stock in uprated quality materials.
Regards Ike
If it's the pistons/pins that are the problem, how is your motor going to handle the power running on standard pistons/pins ? Or have those been changed ?
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
20-10-2017, 12:52 PM
steviewevie Interesting info Ike, thanks :thumbup1:
If it's the pistons/pins that are the problem, how is your motor going to handle the power running on standard pistons/pins ? Or have those been changed ?
Hi Steve,
maybe I have not made myself clear. The problem with the pins / piston failures IMO are, and have been, caused by excessive rpm and or det, not boost. You can push as hard as want within reason and the rod will not fail in normal service. So, as the std factory ecu is still controling the rpm limit in our car, at present I see no issues regarding pins and pistons.
Regards Ike
SPChorsham.com
20-10-2017, 12:52 PM #175steviewevie Interesting info Ike, thanks :thumbup1:
If it's the pistons/pins that are the problem, how is your motor going to handle the power running on standard pistons/pins ? Or have those been changed ?
Hi Steve,
maybe I have not made myself clear. The problem with the pins / piston failures IMO are, and have been, caused by excessive rpm and or det, not boost. You can push as hard as want within reason and the rod will not fail in normal service. So, as the std factory ecu is still controling the rpm limit in our car, at present I see no issues regarding pins and pistons.
Regards Ike
20-10-2017, 01:11 PM
SPChorsham.com maybe I have not made myself clear. The problem with the pins / piston failures IMO are, and have been, caused by excessive rpm and or det, not boost. You can push as hard as want within reason and the rod will not fail in normal service. So, as the std factory ecu is still controling the rpm limit in our car, at present I see no issues regarding pins and pistons.
Regards Ike
Thanks Ike, I see what you mean now.
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
20-10-2017, 01:11 PM #176SPChorsham.com maybe I have not made myself clear. The problem with the pins / piston failures IMO are, and have been, caused by excessive rpm and or det, not boost. You can push as hard as want within reason and the rod will not fail in normal service. So, as the std factory ecu is still controling the rpm limit in our car, at present I see no issues regarding pins and pistons.
Regards Ike
Thanks Ike, I see what you mean now.
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
20-10-2017, 02:30 PM
Marsdendean So does that mean the cars which have failed in the past could been pushed beyond the 6250RPM limit and thats whats made them fail?
Hi, again, IMO it is a combination of rpm limit and / or detonation caused by possible mapping ineptitude and lack of understanding of the ecu's most/all of these were fitted with. We have the luxury of being able to access all these ecu's and for sure the answer lies mostly within. This, maybe interpreted any way you so wish.
Regards Ike
SPChorsham.com
20-10-2017, 02:30 PM #177Marsdendean So does that mean the cars which have failed in the past could been pushed beyond the 6250RPM limit and thats whats made them fail?
Hi, again, IMO it is a combination of rpm limit and / or detonation caused by possible mapping ineptitude and lack of understanding of the ecu's most/all of these were fitted with. We have the luxury of being able to access all these ecu's and for sure the answer lies mostly within. This, maybe interpreted any way you so wish.
Regards Ike
20-10-2017, 02:35 PM
Marsdendean That means about as much as servicing manual for a shredding machine! Thanks for the information thou, im sure someone can explain it to me in *thick* terms!!
He is saying that someone else cocked up :lol:
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
20-10-2017, 02:35 PM #178Marsdendean That means about as much as servicing manual for a shredding machine! Thanks for the information thou, im sure someone can explain it to me in *thick* terms!!
He is saying that someone else cocked up :lol:
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
20-10-2017, 08:42 PM
Marsdendean Thanks a lot Steve!!! Something about denotation and combination of RPM limits was thrown in and it lost me.
http://en.wikipedia.org/wiki/Engine_knocking
that should help mate.
basically hes saying bad mapping caused the problems, not over boost
Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.
OutlawJapClub Admin Team
Sparkystav
20-10-2017, 08:42 PM #179Marsdendean Thanks a lot Steve!!! Something about denotation and combination of RPM limits was thrown in and it lost me.
http://en.wikipedia.org/wiki/Engine_knocking
that should help mate.
basically hes saying bad mapping caused the problems, not over boost
Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.
OutlawJapClub Admin Team
21-10-2017, 12:49 PM
"Life's goal is not to arrive safely at the grave in a well preserved body. But, rather to skid in sideways........
totally worn out and broken, shouting 'Holy ****, WHAT A RIDE!'"
FirebirdPhil
21-10-2017, 12:49 PM #180I think Ike has proven that it is the mapping that is the key - not the pistons/rods etc. Far to clever for me that man:Shooting:
"Life's goal is not to arrive safely at the grave in a well preserved body. But, rather to skid in sideways........
totally worn out and broken, shouting 'Holy ****, WHAT A RIDE!'"
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