Just how durable is a s400?

[ISBeINSIDE]

Thank you jose for your work on this... I am going to put water injection in till the end of the season. I will do what I can fora wastegate, most likely won't get one in toll the off season...thank you everyone for your input

Jason
SBT/LCD

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[zstroken]

I don't build turbos for a living, but the few I've pulled apart with blue shafts had oiling problems.

I would quadruple check the feed line, maybe it has a kink or manufacture defect. The 1/8" NPT feed port is marginal. Not big enough in my personal opinion, but I am far from a turbo expert. On my twin setup with HT4B, I purposely adapted from the stock turbo large feed port on the filter block to the bottom HT4B turbo, and used the smaller 1/8" NPT port to feed the small He351 top turbo. So far, both turbos are running great and show no signs of extreme wear.

I agree, I haven't fed one from the 1/8" port, always use the factory, and have a 3/8" hydrualic line made with the right fittings.

 

[DRTurbo]

Thank you jose for your work on this... I am going to put water injection in till the end of the season. I will do what I can fora wastegate, most likely won't get one in toll the off season...thank you everyone for your input

Jason
SBT/LCD

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Jason turbo is being ready to ship today. My personal opinion would be go to an 80mm comp wheel, but that is "my " personal opinion...not opinion of the guys here in the shop. I feel the 80 would create the boost you need, and lower shaft speed by probably 15%.

 

[DRTurbo]

I don't build turbos for a living, but the few I've pulled apart with blue shafts had oiling problems.

I would quadruple check the feed line, maybe it has a kink or manufacture defect. The 1/8" NPT feed port is marginal. Not big enough in my personal opinion, but I am far from a turbo expert. On my twin setup with HT4B, I purposely adapted from the stock turbo large feed port on the filter block to the bottom HT4B turbo, and used the smaller 1/8" NPT port to feed the small He351 top turbo. So far, both turbos are running great and show no signs of extreme wear.

Smart man.....over oiling a turbo is a lot better then under oiling one.

 

[nwpadmax]

It's truly sad to see a 2week old charger fail to dramatically and be told..."Your fault". Eventgough it wasn't ran nearly hard enough to warrant the damage....

Isn't there any quality assurance anymore???

Why pay $1500 for something that just won't last....

Jason...Hx-60.....I know a guy who can get one...and I know another who can make it work....!!!

~Les

I hear what you're saying, but...

1) you don't know the drive pressure

2) you don't know shaft speed

3) you didn't list EGT


I don't think you can really complain too much.

 

[ISBeINSIDE]

Jason turbo is being ready to ship today. My personal opinion would be go to an 80mm comp wheel, but that is "my " personal opinion...not opinion of the guys here in the shop. I feel the 80 would create the boost you need, and lower shaft speed by probably 15%.

i think that would be a lot of wheel. i like the spool characteristics of the 78li wheel. if you made an 80mm wheel LI that would be awesome.

 

[ISBeINSIDE]

I hear what you're saying, but...

1) you don't know the drive pressure

2) you don't know shaft speed

3) you didn't list EGT


I don't think you can really complain too much.

what if you could list all those things? would you be concerned? how many people are running these turbos at 1:1 DP @ 1800f with say 110k shaft speed?

as stated i am not complaining, but am concerned...

the map on the comp wheel shows 50-55psi to be way lower than even 100k? comp wheel map shows 66psi at 101k. is comp wheel map compareable to total turbo speed?

 

[2007 5.9]

One would think that with a L.I. Wheel design that overspending should be of concern and instructions to prevent such instance would be in order.

Or at least a heads up..."oh by the way since this wheel IS so light you NEED to monitor drive and ensure that overspending doesn't occur".

But as I recall Jason told Jose the build of the truck and the fueling, and the trucks main purpose...one would think that if there was a "glimmer" of a chance that a overspending condition was to be encountered...perhaps a different wheel should have been suggested.

I'm not trying to bash FI or Jose, but I am completely frustrated that we have our most important pull in 3 days at our best track...(which is what the truck was built for) and no go. And I feel that a little more forethought should have gone into this turbo suggestion. Just because something is the "Latest and greatest" doesn't mean its a "one trick pony".

Sorry if I've offended anybody, I wish not too.

~Les

 

[paulb]

Jason,

What engine rpm are you running? How well does the engine breath (i.e. cam, head work, intake, etc.)?

Do you have a link to the turbo map you are looking at?

Thanks,
Paul

 

[DRTurbo]

One would think that with a L.I. Wheel design that overspending should be of concern and instructions to prevent such instance would be in order.

Or at least a heads up..."oh by the way since this wheel IS so light you NEED to monitor drive and ensure that overspending doesn't occur".

But as I recall Jason told Jose the build of the truck and the fueling, and the trucks main purpose...one would think that if there was a "glimmer" of a chance that a overspending condition was to be encountered...perhaps a different wheel should have been suggested.

I'm not trying to bash FI or Jose, but I am completely frustrated that we have our most important pull in 3 days at our best track...(which is what the truck was built for) and no go. And I feel that a little more forethought should have gone into this turbo suggestion. Just because something is the "Latest and greatest" doesn't mean its a "one trick pony".

Sorry if I've offended anybody, I wish not too.

~Les

Les, overspinning doesn't have anything to do with it being an LI wheel. Its simply the turbo is turning faster then the bearing can support it. Some trucks have issues some don't. Alot of those issues can be solved with data, as the person above had stated . Drive pressure is a must know figure, also EGT's and shaft speed sensor kit is a great tool, especially since you guys are running this turbo without a gate. Right now you guys are flying blind so to speak without knowing whats going on in that turbo. When we pull it apart the turbo speaks to us.....the bearings tell the tale always. Judging by what we saw, my opinion above is what "I" feel could help the issue.

 

[2007 5.9]

Jason,

What engine rpm are you running? How well does the engine breath (i.e. cam, head work, intake, etc.)?

Do you have a link to the turbo map you are looking at?

Thanks,
Paul

During pulls..42-4400rpm launch, carrying 38-4000 down the track. Screen over inlet, Hamilton 181/210 107LSA. No head work, no valve work.

Factory motor/head besides springs, pushrods, cam, and deleted grids.

~Les

 

[2007 5.9]

Les, overspinning doesn't have anything to do with it being an LI wheel. Its simply the turbo is turning faster then the bearing can support it. Some trucks have issues some don't. Alot of those issues can be solved with data, as the person above had stated . Drive pressure is a must know figure, also EGT's and shaft speed sensor kit is a great tool, especially since you guys are running this turbo without a gate. Right now you guys are flying blind so to speak without knowing whats going on in that turbo. When we pull it apart the turbo speaks to us.....the bearings tell the tale always. Judging by what we saw, my opinion above is what "I" feel could help the issue.

Fair enough...we will be doing the stated on the next go around.

Again...I'm not trying to sound attacking.

~Les

 

[DRTurbo]

what if you could list all those things? would you be concerned? how many people are running these turbos at 1:1 DP @ 1800f with say 110k shaft speed?

as stated i am not complaining, but am concerned...

the map on the comp wheel shows 50-55psi to be way lower than even 100k? comp wheel map shows 66psi at 101k. is comp wheel map compareable to total turbo speed?

Jason, boost/psi and shaft rpm have no relation to each other. An easy example.

A 60-1 on a 400ci gas engine would make maybe 5psi, , which on the map would show very low rpm.... so as you can see they are not dependent on each other.

 

[DRTurbo]

Fair enough...we will be doing the stated on the next go around.

Again...I'm not trying to sound attacking.

~Les

Les if you guys want I will have them throw the standard 80 on for free if you want to go that route to try now. Just let me know asap.

 

[SmokinCAT]

Nobody has asked this yet, is there a minimum oil flow/spec that should be met to feed these turbos.

I know I have seen some numbers listed for turbos in service manuals, but never seen an aftermarket turbo with an oil spec.

 

[DRTurbo]

During pulls..42-4400rpm launch, carrying 38-4000 down the track. Screen over inlet, Hamilton 181/210 107LSA. No head work, no valve work.

Factory motor/head besides springs, pushrods, cam, and deleted grids.

~Les

DO NOT run a screen over the inlet. That will kill the turbo, as the screen causes buffeting in front of the wheel, also too small an air filter will cause the oil to get drawn into the intake side. Best way to feed these chargers is like we do on our big turbo Supras...large inlet pipe going to the headlight with no restriction.

 

[DRTurbo]

BTW, IF you HAVE to run a screen in front, you run the Garrett screen kit. Its the only one we use for our Super Farm guys. The holes are quite large to stop large objects and causes minimal buffeting. I will post a pic for those that are curious or use them as well. They will stop small children and pets from getting stuffed in the inlet. Made for 5" inlet units.

 

[DRTurbo]

Screen kit we use from Garrett, fits all the standard S400's and GT42's.

 

[zstroken]

Screen kit we use from Garrett, fits all the standard S400's and GT42's.

Price?

 

[ISBeINSIDE]

How much, maybe have you throw it in the box when the turbo is shipped

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