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CT26 + Maximum Boost - 6G Celicas Forums

Topic #33208 49 posts Started by nemesis
tangcla
#31
ahh k. cos I already did the fuel pump with a Walbro GSS341 255lph smile.gif

Interestingly, I get better fuel economy while the car runs richer... kindasad.gif

This post has been edited by tangcla: Feb 4, 2006 - 5:14 PM
www.tangcla.com- photographyCanon EOS 5D Mark II | EOS 1D Mark II N | 16-35mm f/2.8L|24-70mm f/2.8L| 70-200mm f/2.8LIS15mm f/2.8 fisheye | 85mm f/1.8 | 100mm f/2.8 macro | 580EX-II x2
Insanity-74
#32
Up to and including 850cc injectors can use the origional fuel rail with some slight modifications 1000cc will need a new fuel rail smile.gif
lagos
#33
here is something to keep in mind tho. all these tests and claims of cylinders running lean is all "in theory" type of stuff. the test were done by WolfKatz, a company who sells nothing but fuel rails. so just keep that in mind.

like jeff said....for 75 bucks, why not... but i dont think its a problem i would loose any sleep over. i dont think any 3s owner ever pulled out his spark plugs to find one of them was running lean.
15PSI - 30MPG - Megasquirt Tuned
BBoYRuGGeD
#34
>
QUOTE(presure2 @ Feb 4, 2006 - 7:46 PM) [snapback]388914[/snapback]
>
i didnt mean boost level, i meant a 14-17psi FUEL pressure drop across the rail.
ALL the time, at ANY boost level.


oh...then i guess i better get crackin' on that rail soon tongue.gif cheap and good reliable insurance....cant go wrong with that!

bboy

edit: on a side note...i agree with lagos that this issue is not that crucial and should not be that big of a deal for most future swappers, specially those who plan on staying on or below 14psi for awhile. reason i say this is i dont really know anyone who has had any issue with the stock rail on upgraded pump... be it celica, mr2, camry, or whatever car a 3sgte has been swapped into.

This post has been edited by BBoYRuGGeD: Feb 5, 2006 - 1:40 AM
..(formerly daily driven) 3S-GTE powered celica currently set @ 12psi..
presure2
#35
>
QUOTE
>edit: on a side note...i agree with lagos that this issue is not that crucial and should not be that big of a deal for most future swappers, specially those who plan on staying on or below 14psi for awhile. reason i say this is i dont really know anyone who has had any issue with the stock rail on upgraded pump... be it celica, mr2, camry, or whatever car a 3sgte has been swapped into.

i dont at all.
by the time you realize the problem, theres a big hole in the side of your block.
>
QUOTE
>edit: on a side note...i agree with lagos that this issue is not that crucial and should not be that big of a deal for most future swappers, specially those who plan on staying on or below 14psi for awhile. reason i say this is i dont really know anyone who has had any issue with the stock rail on upgraded pump... be it celica, mr2, camry, or whatever car a 3sgte has been swapped into.

Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered
jgreening
#36
A new rail is necessary on TUNED engines. If you are running the stock ECU, the leanest cylinder on the stock rail is still pig rich.

I asked a similar question in their original thread a long time ago and the Wolfkatz's could not say there would be a problem on the stock rail and ECU even with an upgraded pump. Check out posts 87 and 88 in this thread:

Fuel Rail Thread

I have yet to see someone having a problem at 15psi on stock injectors, stock rail, and upgraded pump.

This post has been edited by jgreening: Feb 5, 2006 - 9:59 AM
QUOTE(lagos @ Jul 10, 2006 - 1:55 PM) [snapback]454118[/snapback]i know your trying to do the right thing for your motor, but this is one of those times where you should just trust the guys who have had their swaps for a while and have done a ton of research into this.
BBoYRuGGeD
#37
>
QUOTE(jgreening @ Feb 5, 2006 - 2:47 PM) [snapback]389148[/snapback]
>
A new rail is necessary on TUNED engines. If you are running the stock ECU, the leanest cylinder on the stock rail is still pig rich.

I asked a similar question in their original thread a long time ago and the Wolfkatz's could not say there would be a problem on the stock rail and ECU even with an upgraded pump. Check out posts 87 and 88 in this thread:

Fuel Rail Thread

I have yet to see someone having a problem at 15psi on stock injectors, stock rail, and upgraded pump.


thnx jay...yah i was thinking myself "why would it be leaning?" when the ecu dumps a crackload of fuel after 12psi to prevent detonation. im not doubting theres a pressure drop...but i dont believe this will lean anything out to dangerous levels. still tho...75 bucks is still pretty cheap for an upgraded rail from ATS

bboy
..(formerly daily driven) 3S-GTE powered celica currently set @ 12psi..
jgreening
#38
>
QUOTE(BBoYRuGGeD @ Feb 5, 2006 - 3:13 PM) [snapback]389246[/snapback]
>
>
QUOTE(jgreening @ Feb 5, 2006 - 2:47 PM) [snapback]389148[/snapback]
>
A new rail is necessary on TUNED engines. If you are running the stock ECU, the leanest cylinder on the stock rail is still pig rich.

I asked a similar question in their original thread a long time ago and the Wolfkatz's could not say there would be a problem on the stock rail and ECU even with an upgraded pump. Check out posts 87 and 88 in this thread:

Fuel Rail Thread

I have yet to see someone having a problem at 15psi on stock injectors, stock rail, and upgraded pump.


thnx jay...yah i was thinking myself "why would it be leaning?" when the ecu dumps a crackload of fuel after 12psi to prevent detonation. im not doubting theres a pressure drop...but i dont believe this will lean anything out to dangerous levels. still tho...75 bucks is still pretty cheap for an upgraded rail from ATS

bboy


Its your money. If it were me, I would wait until you get an EMS and then buy a real rail from either Wolfkatz, Hux Racing, or Speed-Source. I like ATS and they provide very good products but I would never buy one of those rails.
QUOTE(lagos @ Jul 10, 2006 - 1:55 PM) [snapback]454118[/snapback]i know your trying to do the right thing for your motor, but this is one of those times where you should just trust the guys who have had their swaps for a while and have done a ton of research into this.
BBoYRuGGeD
#39
>
QUOTE(jgreening @ Feb 5, 2006 - 9:29 PM) [snapback]389251[/snapback]
>
Its your money. If it were me, I would wait until you get an EMS and then buy a real rail from either Wolfkatz, Hux Racing, or Speed-Source. I like ATS and they provide very good products but I would never buy one of those rails.


my thoughts exactly...i was gunna wait it out 'til i upgrade the entire fuel system originally until this topic came up. i havent had any input from anyone who actually has experience w/ the ATS fuel rail so far...so i may just wait it out like i originally planned. Wolfkatz sounds good to me, but out of curiousity why wouldnt u buy an ATS rail Jay?

bboy
..(formerly daily driven) 3S-GTE powered celica currently set @ 12psi..
lagos
#40
>
QUOTE
> i dont at all.
by the time you realize the problem, theres a big hole in the side of your block.


lol, and how many mr2 guys have you seen this happen to, on the stock turbo and injectors? there are TONS of 3sgtes with well over 100,000 miles on them, still running ritch after many years of use.


>
QUOTE
>A new rail is necessary on TUNED engines. If you are running the stock ECU, the leanest cylinder on the stock rail is still pig rich.


yeah, i totally agree.


>
QUOTE
>I like ATS and they provide very good products but I would never buy one of those rails.


i also agree. their rail is basically just a stock rail, that has one hole drilled out bigger to try to fix the problem. if you are really worried about fixing this possible "problem", then buy the 300$ wolfkatz rail that they offer.

This post has been edited by lagos: Feb 5, 2006 - 4:50 PM
15PSI - 30MPG - Megasquirt Tuned
jgreening
#41
>
QUOTE(BBoYRuGGeD @ Feb 5, 2006 - 3:47 PM) [snapback]389261[/snapback]
>
>
QUOTE(jgreening @ Feb 5, 2006 - 9:29 PM) [snapback]389251[/snapback]
>
Its your money. If it were me, I would wait until you get an EMS and then buy a real rail from either Wolfkatz, Hux Racing, or Speed-Source. I like ATS and they provide very good products but I would never buy one of those rails.


my thoughts exactly...i was gunna wait it out 'til i upgrade the entire fuel system originally until this topic came up. i havent had any input from anyone who actually has experience w/ the ATS fuel rail so far...so i may just wait it out like i originally planned. Wolfkatz sounds good to me, but out of curiousity why wouldnt u buy an ATS rail Jay?

bboy


Have you held a 3sgte fuel rail in your hands? Its made of extremely thin material. Boring out the rail, even a little bit, would concern me due to structural integrity. Now, I have never heard of a problem with an ATS rail so I don't want to imply that the structural integrity is weakened to a point that they are not safe or that they don't do their job in lowering the pressure drop. I am just saying that >>I>> wouldn't buy one.
QUOTE(lagos @ Jul 10, 2006 - 1:55 PM) [snapback]454118[/snapback]i know your trying to do the right thing for your motor, but this is one of those times where you should just trust the guys who have had their swaps for a while and have done a ton of research into this.
BBoYRuGGeD
#42
>
QUOTE(jgreening @ Feb 5, 2006 - 9:55 PM) [snapback]389266[/snapback]
>
Have you held a 3sgte fuel rail in your hands? Its made of extremely thin material. Boring out the rail, even a little bit, would concern me due to structural integrity.


good point

>
QUOTE(jgreening @ Feb 5, 2006 - 2:47 PM) [snapback]389148[/snapback]
>
I have yet to see someone having a problem at 15psi on stock injectors, stock rail, and upgraded pump.


this is what im talking about...out of all the 3sgte swappers i know of (and there are alot here in NJ...celica, mr2, camry, and even 1 corolla) ive never heard anyone having problem with the stock rail on upgraded pump

bboy
..(formerly daily driven) 3S-GTE powered celica currently set @ 12psi..
brianforster
#43
i agree, this thread makes it sound like bad juju, but dont most swappers run a constant 12-15 psi? i mean stock boost is what, 10? 8? and your throwing a nice intercooler on, coupled with the fact that most turbo engines are detuned from the factory, it seems like 12-15 psi is safe.
presure2
#44
just a couple pics of the ATS modifyed rail for refrence..
i dont see a problem with this:
user posted image

user posted image

the only time i would see a problem is when the rail is modifyed to accept a larger feed, where the tension created could potentially crack it.
thats not the case with the ATS rail.
Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered
lagos
#45
>
QUOTE(brianforster @ Feb 23, 2006 - 12:42 PM) [snapback]398435[/snapback]
>
i agree, this thread makes it sound like bad juju, but dont most swappers run a constant 12-15 psi? i mean stock boost is what, 10? 8? and your throwing a nice intercooler on, coupled with the fact that most turbo engines are detuned from the factory, it seems like 12-15 psi is safe.


yep
15PSI - 30MPG - Megasquirt Tuned
XxAxnCelica95xX
#46
aww man i sure miss 6gc.net..man i just came back to visit you guys/girls and i see sooo much turbo/swap going around up in here..kinda make me sad since i cant even turbo my 04 accord v6...make me wanna go back to a celica..snif snif but anyways good information tho...
As the time goes byMy life change...I hope i wont changeNor my heartbut it is broken..wat can i do..IT life...I hate it...but i lov my creation
brianforster
#47
would my safe maximum boost be lower since i have an "upgraded ct26"

the specs are: T04E 46 trim and 10 degree clip (whatever all that means)
jgreening
#48
>
QUOTE(brianforster @ Feb 24, 2006 - 1:22 PM) [snapback]399099[/snapback]
>
would my safe maximum boost be lower since i have an "upgraded ct26"

the specs are: T04E 46 trim and 10 degree clip (whatever all that means)


doubtful. You probably get a lot more lag and a little more top end. Almost certainly nothing to worry about exceeding the stock fuel system.
QUOTE(lagos @ Jul 10, 2006 - 1:55 PM) [snapback]454118[/snapback]i know your trying to do the right thing for your motor, but this is one of those times where you should just trust the guys who have had their swaps for a while and have done a ton of research into this.
brianforster
#49
>
QUOTE(jgreening @ Feb 24, 2006 - 8:33 PM) [snapback]399132[/snapback]
>
>
QUOTE(brianforster @ Feb 24, 2006 - 1:22 PM) [snapback]399099[/snapback]
>
would my safe maximum boost be lower since i have an "upgraded ct26"

the specs are: T04E 46 trim and 10 degree clip (whatever all that means)


doubtful. You probably get a lot more lag and a little more top end. Almost certainly nothing to worry about exceeding the stock fuel system.



a lot more lag? :cry:
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