Hello,

I have a built LR2.0L 4g63 - I would like to ask those in the know, what boost I could run a new style, dual row ceramic ball bearing cored, FP Black at?

When I say run - I mean reliably for road racing without shaft overspeed or silly high intake temps.

I understand the new core is supposedly much more reliable/durable but I want gain an understanding into what a reliable boost pressure would be sensible to run.

Thanks,

Karl

 

Mmm hello?!

 

Mmm hey!

 

Mmm Howdy!

 

***Bump*** for this legitimate question.

 

Best answered by whom you get to tune it safely for your needs.

 

Ultimately I will go off the advise of my tuner and mapper.

I thought I would post the question as the turbo is relatively new and there doesn't seem to be much information available yet – so I figure this is the perfect time to ask the questions

Having a specification or guideline to its maximum recommended working parameters sure would be useful . If I am forking out $2500 for a bolt turbo it would be nice to have an indication from the manufacturer of its capabilities wouldn’t it – or is that asking to much?

I'm not interested in pushing the turbo outside of it's designed operating limits (much like some on here). Some figures on here seem to defy the convention of physics and they can’t last long at all being worked that hard. Reliability is of greater importance to me rather than forum bragging rights. I want to be able to extract the most from the turbo on my setup whilst retaining a reasonable level of reliability. I do appreciate that the harder I push it the less reliable the turbo becomes but I want to find that happy compromise.

Obviously a compressor map would be extremely useful, but as far as I am aware, there are non available for Forced Performance turbo’s (yet).

There is information floating around online that the FP Black flows 68lb/min. Where has this information materialised from? Is it a figure supplied by FP themselves or is it simply guesswork that has gone round the houses and somehow turned into hard fact?

What I really would like to see is some sort hard data from Forced Performance themselves.

A) A compressor map.
B) Maximum recommended boost pressure.
C) Maximum recommended shaft speed.
D) An indication of lifetime expectancy at various boost levels (I wish)

I understand much of the above would require large amounts of R&D time / cost but never the less certainly would be useful information from a customer / end users perspective. Obviously some information is available from the turbo industries manufacturing giants – but it would awesome to see a manufacturer from the performance sector of the turbo market willing to invest time and money into providing such info with their products.

It would be nice if FP offered an option to fit a shaft speed sensor - I guess the turbo could be customised but it would be cool to be able to select this as an option (much like the Borg Warner EFR’s). If the FP Black prides itself as the premium bolt on turbo then it would be excellent to see such a feature as an option.

I would be interested to find out Forced Performance structure guarantees for their products. Do FP base the warranty purely around examination of a failed turbo to see if a replacement is deserved?

-Karl

 

I see you're in England so picking up the phone might be expensive, but if you could calling Robert at FP is my recommendation.. he has spent tons of time discussing questions like yours with me.. perhaps you can email him instead with your exact build information and get the information needed..

Kins that flow information does come directly from them, and if I recall you can get a speed sensor installed but again one would have to call.

 

Karl,


My black flowed around 68 lbs / min at 34.8psi

The maximum boost it would make on my setup with the internal gate was around 34.8psi, Marios has achieved similar boost figures on his BB black setup.

Others have achieved upto 40psi using an external gate setup but I was told this is out of the performance window.

I was also told that running it close to 9300rpm was probably into overspeed terrority.

No reason why the new BB version would be any less reliable than say a Garrett BB.

 

I would say your sweet spot would be between 32-35psi....

 

Do you have a EGT sensor? I would think for road racing you would want to keep the boost down a little (less than 30) due to the prolonged usage. Would not give much time to cool and excessive EGT could build up and kill it.

 

If road racing, get a baffled pan or ams pan to keep the oil in the pan during cornering. Yes you do have the ball bearing which is not an "oil hog" but ultimate reliability would be oil pan, kiggly hla for less oil in the head and more in the pan, and running great oil. If you go e85 you'd have lower egts, and porting helps also with lower egt. Combine this with 32-33 psi e85 or 28 -29 psi pump gas for maximum reliability. You can push it of course, but this is as much as you can do in my opinion

 

The guys over at FP say to never exceed 147k rpm spool and 1650 degrees egt. Hope that helps

 

147k ...damn never knew motors could go that high!

 

Wow ^^^^