Weighing the Pros and Cons of going BB...

[Boosted98gsx]

This is how I sum it up so far. I have a 2.3 stroker...

Pros:
Faster spoolup
More effecient air charge

Cons:
Not rebuildable
Faster spool up essentially insignificant


So if something where to happen (ie; spark plud electrode falling off and breakng a fin off my turbine) i would have to spend ~800 on a new CHRA for a GT series BB turbo.

Now what I'm asking, is, how often does this happen? Where a fin on a turbo is broken or damage to the turbo is significant enough to need to buy a new rotating assembly?

It's time to decide for me. Which turbo to aim for. I want 500awhp on pump gas. This is going to be my daily driver. Which of these turbos am I going to be happiest with?

FP 3065 (BB)
FP 3565 (BB (unless I'm mistaken))
FP 3575 (Non-BB)

Remember I'm on a stroker motor, so what would the spool characteristics of each of these be?

I guess what I'm asking is this, would I sacrifice that much spool time over the 3065 by going with the 3575 for it to not be worth it?

 

[GVR4592]

http://dsmtuners.com/forums/showthread.php?t=203475

I would get the 3575. According to that thread and speaking with Jake, the spool time is nearly identical between the 3065 and 3575., and he dynoed 477 on pump.

 

[IPT]

Have you looked at the "S" line up from Borg-warner? With the Map Width Enhancment groove and their Extended Tip Technology you can have the quicker spool, but still have a normal journal bearing system.

 

[Boosted98gsx]

Have you looked at the "S" line up from Borg-warner? With the Map Width Enhancment groove and their Extended Tip Technology you can have the quicker spool, but still have a normal journal bearing system.

Please link.

 

[IPT]

They have a good explaination of the Borg-warner lineup on the first page here.

 

[Boosted98gsx]

I will never buy a Bullseye turbo. EVER.

 

[blcknspo0ln]

Have you considered the SCM 60-1?

 

[Boosted98gsx]

No i haven't. As stated above, I do not like the way the new "mitsu" housings were designed from bullseye/AGP/precision.

If I get anything, it will be either a full garrett setup, or an FP series turbo.

 

[GVR4592]

I have a PTE hotside on my 60 trim. I hate it, full Garrett or FP is the way to go.

 

[blcknspo0ln]

Understandable, I guess I missed that part about you not wanting a mitsu turbine housing.

 

[4wd-Eclipse]

I guess what I'm asking is this, would I sacrifice that much spool time over the 3065 by going with the 3575 for it to not be worth it?

You need to read this http://www.dsmtuners.com/forums/showthread.php?t=203475

Go full garrett or FP ....

 

[Boosted98gsx]

You need to read this http://www.dsmtuners.com/forums/showthread.php?t=203475

Go full garrett or FP ....

That definately answers my question then. FP3575 for me.

 

[AL92]

I fought with this question.I would have gone 3565 and stayed BB but went 3065. I think its enough for me and this car. I have a 2.4 built. Car is not together yet ,trying to get it together next few weeks.
I figure the FP3065 is going to be more than crazy enough for me and a FP3052 might have been better but building a twin turbo trans am up right now and that car will have over 1000rwhp capability so really don't need to push my talon to the absolute extreme.
The 3575 is wicked too and the FP turbos have proven themselves and think they are pretty reliable.I dont' hear much about them dying. Fact can't remember reading even one bad post and I read those FP3065 and FP3052 threads to death on dsmtalk.

I figure can always spray a 50 to 100 shot on top of my 3065 if need more.But first need a trans and 4 spider diff and now reading about guys wiping out axles at 20psi on his 3065. I want this car daily driveable not a race car. Hope things hold up ok.
I think the FP3065 spools up around 3800 full spool on a 2.4 And the 3575 just a bit higher I think. Non ball bearing is a bit simpler with no water lines.I hope I made the right choice.

 

[AL92]

Just wanted to say that so far have been running my FP3065 combo for a couple hundred miles of break in. I have seen 13psi or so briefly and the car seems decently fast already even at these boost levels. Spool seems to start around the 3000 point and seems to be all in dependning on gear and stuff by 4000 or so. Things happen very fast and its not easy to watch the tach logging would work a lot better .

A FP3052 might have been a bit better around town but the lag you get from the bigger 3065 you can get around with downshifting.Example if you are in city cruising in third you pretty much need a downshift to second and then you will be right at spool up rpm.The turbo once it starts spooling is lightning fast to hit full spool. And it holds the boost well between shifts.

Same on highway if you are in fifth overdrive a downshift to fourth will get you spooling pretty quickly.

Going thru the gears off the line well a stutterbox and or antilag are both good things.

Overall pretty happy with my FP3065.It works decently well as a street turbo on a 2.4 .My sheet metal intake and crower stage 3s think also hurt bottom end and might slow down spool slightly at lower rpms but they do come on strong in the midrange and topend.I should have maybe went with stage 2 cams to give a bit more low end grunt but the 2.4 sort of makes the stage 3s like stage 2 anyway.

I don't really think I needed a 3575 the fp3065 should be more than scary enough for me.