Guys. what can give porting ??? does it need for turbo??

 

Between the two I'd go with red, more room to grow...spool is miniscule.....blah blah blah been in a Bb green car quick spool and quick torque hit, on a red including what I drive, hits harder in top end. As far as a Bb red it'll spool faster then my jb red....so you'll be closer to stockish spool....good luck. You want an idea of an fp red on pump, check my vids below for a demonstration. Good luck op.

 

i know when i upgrade im going with the fp red.

 

Turbos like the Green and BBK Full are the fastest on the street at legal speeds, while the Red and Black shine at 60+ mph. A 2-step launch will make up the low speed difference, but who drives like that on the street?

 

Anyone interested I have a fp red journal bearing that Im looking to sell.

 

I've been tuning my BBRed on my car, from the bkk full i had before, and tuned a friends green as well. I was worried about the red spool as I road race the car, however I'm totally happy with it. I get 24psi at 4150rpm. 18 psi by 3950. The only place I notice the bigger turbo is cruising in 5th gear at like 2-2400 it doesn't have quite the torque that it did. Otherwise totally liveble!

 

Hmmm. I think that I have discussed this with you before. 24# @ 4150 RPM from a BB Red is nothing to write home about. I am seeing 24# @ 3750 from my JB Red....... untuned. I am still not too happy with the way it is spooling yet though.

I am not trying hate but if you figure that a BB Red has got to spool 300-400 RPM sooner than a JB Red, then you would not be seeing 24# with a JB Red on your setup 'til 4450-4550 RPM. It seems way sluggish to me.

 

I could pick up some spool by retarding the timing some, but that makes the car feel slower to me. I'd rather have slightly higher timing, and therefore more torque, and sacrifice a little bit of spoolup. I have the 18lb gate preloaded to the point I creep to 22psi up top with no WGDC.

Overall, I'm happy with it, it was no where near as bad as I thought it was gonna be.

BTW, why have you still no tune yet? That would suck to spend an entire year putting a car around that I was afraid to rip on. I'd have issues. My car sees 7500rpm or better every time I sit in the seat lol.

 

really late on this post, but would the fact that it spools later increase the MPGs??

i really dislike being in boost cruising at 65 on the stock 05 evo turbo..

 

Yeah, I installed the Red and dicked around preloading the actuator and then installed the injectors all over a year ago. I never even got around to getting the injectors scaled. I haven't driven it in over a year. Just sheer laxness on my part combined with the burden of my 64 years. I have been dealing with some health issues as well. But, still, I am younger than the Stones. LOL

 

Yeah, in general by retarding the ignition timing in the lower rev range you create additional heat as combustion temps and thus EGT's should increase. So, in theory, the higher heat produces higher thermal energy. But, I agree with you that although this is the theory it seems to result in a less resonsive feel overall.

 

as an option, you might consider the gtx3576r. I'm running the 3582r and love the results.

 

We need to analyze what you are saying, or implying above and thus leaving unsaid. Irrespective of ignition timing you need to deal with the slow spool issue as well as the creep isssue at such low preload levels. I get the feeling that you are tuning around the creep issue. That is you are sacrificing BB spool and living with the 3-4# of creep.

Once you eliminate those 3-4 PSI of creep, then you will be able to increase WG spring pressure (preload) by 3-4 PSI, or alternately run a more agressive WGDC. You will thus move the efficiency map of the compressor down to the left, deeper into your engine's midrange power band.

Since you state that your desire is to increase midrange torque....the way to do this with a turbocharged car is to improve spool, not delay it. Get the compresor moving more lbs/min earlier, not later. So, let's try to improve engine torque by having the Red's compressor move more air sooner, not later.

Afterall, one of the main benefits of the BB upgrade in comparison to the JB format is to achieve quicker spool so that the compressor is into the sweet spot of its map earlier ...not later. Or am I missing something. If you wanted slower spool then you coud have achieved it with a JB Red and saved yourself some money.

I would stop tuning around the creep. Let's first eliminate the creep issue altogether, so that we can preload the pee out of that BB turbo and thus get it to spool and produce torque sooner in the midrange not later. You should be seeing 24# by 3500-3800 RPM with that puppy.

 

We need to analyze what you are saying, or implying above and thus leaving unsaid. Irrespective of ignition timing you need to deal with 1) the slow spool issue as well as, 2) the creep isssue at such low preload levels. I get the feeling that you are tuning around the creep issue. That is you sacrifice any inherent spool advantage of the BB center section and live with the 3# of premature creep.

Once you eliminate those 3-4 PSI of creep, then you will be able to increase WG spring pressure (preload) by 3-4 PSI, or alternately run a more agressive WGDC. You will thus move the efficiency map of the compressor down to the left, deeper into your engine's lower midrange power band.

Since you state that your desire is to increase torque....the way to do this with a turbocharged car is to improve spool, not delay it. Get the compressor moving more lbs/min of charge air, earlier, not later. So, let's try to improve engine torque by having the Red's compressor move more air sooner, not later.

Afterall, one of the main benefits of the BB upgrade in comparison to the JB format is to achieve quicker spool so that the compressor is into the sweet spot of its map earlier ...not later. Or am I missing something. If you wanted slower spool then you coud have achieved it with a JB Red and saved yourself some money.

I would stop tuning around the creep. Let's first eliminate the creep issue altogether, so that we can preload the pee out of that BB turbo and thus get it to spool and produce torque sooner in the midrange not later. You should be seeing 24# by 3500-3800 RPM with that puppy.

 

I cut the actuator arm and preloaded the **** out of it. It would hit 16-17 psi and creep to 26 by itself. I presumed that the flapper was not able to open sufficiently at higher rpm. Backed it off two turns and now it will do ~15-16 and climb to 21-22. At the moment yes I am tuning around the creep, which is easy with the ecuboost.

Which, now that I think about it, it may be the standard gate, and not even the 18.

However I do plan to raise the boost more(the 22psi is just for my road race map) so the wgdc map should get more normal looking.

I am running an o2 eliminator style dp, full 3" off the turbo all the way out the back. 2" wg tube off a cnc edged flange from JMF that recircs with a big hole. I ported the housing and manifold decently, and ported the WG area as well.