Has anyone ran this new 6870 at the track yet to see if it's faster or as fast as the 71hpq . At the 5700-6000 rpm at 25-30 psi boost range.I just bought this new 6870cea dbb but I haven't bolted it on yet . But I went out trying to buy the 71hpq. The guy at precision told me & swears that this new 6870 will make more power than the 71 hpq at the 5700-6000 rpm range /25-30psi boost range... With all other things being equal . I haven't heard of any TSM guys using it.Any input would be appreciated thanks .
6870 cea vs 71hpq
- Thread starter 007gn
- Start date
Yes I just bought the 6870dbb h cover .85 ex for my car. But this wasn't the turbo I was after. So what are all the TSM guys are gonna use now ?? The 71hpq seemed to be their go to turbo.
really?boost is just a number.from what I have seen boost/power is affected by the build approach.
that's is a lot of turbo.
ttypewhite
Well-Known Member
- Joined
- Oct 1, 2001
If this is the turbo I think it is, then it's based off of the GT42 style turbo's. The exh housing are huge like the GT42's and support big hp. I was talking to Cal about this turbo the other day. Not sure if it's the same one you are talking about, But it is new and it is 68mm. I'm hearing that it is comparable to my turbo I am currently running.
fastblackracing
Well-Known Member
- Joined
- Apr 7, 2009
Was this in 3 or 4 bolt configuration and do you know what size engine and heads?6870 has been in the 8s already. And is capable of making 1100 hp. If you have the supporting mods. And will spool faster too of course with the right converter
TTA976
Active Member
- Joined
- Jun 22, 2014
6870 has been in the 8s already. And is capable of making 1100 hp. If you have the supporting mods. And will spool faster too of course with the right converter
Hello,
Not in the 3 bolt configuration which is offered to us.
BEATAV8
The Engine Whisperer
- Joined
- Feb 14, 2002
Posted some dyno numbers and data for this turbo here:
http://www.turbobuick.com/forums/threads/precision-6870-gen2-cea.407363/
it runs more backpressure than I had hoped. Aggressive compressor does a good job of loading that turbine. Supra numbers with a 4 bolt are a bit lower on backpressure but still in the neighborhood.
http://www.turbobuick.com/forums/threads/precision-6870-gen2-cea.407363/
it runs more backpressure than I had hoped. Aggressive compressor does a good job of loading that turbine. Supra numbers with a 4 bolt are a bit lower on backpressure but still in the neighborhood.
fastblackracing
Well-Known Member
- Joined
- Apr 7, 2009
I looked at one these in a four bolt config this weekend at the Yellowbullet nats. Another question I have is this turbine wheel the same one that is in a 6266? Looked like the same wheel cut down 4 mm to me.
It will work well in a 10:1 engine with a bunch of other important stuff if you want to run low 9's/high 8's. It's not happy in a 3 bolt housing and needs other things to get it done. A .96a/r tang housing or pro mod style would really open up the potential
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RICHIE HIGH PSI
Active Member
- Joined
- May 25, 2001
RICHIE HIGH PSI
Active Member
- Joined
- May 25, 2001
8.1 compression .85 housing. pretty deep into the 8sec zone with lazy 60ft times.
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