cubaniche

iTrader: (1)

It is def easier with the head off since you dont have to worry about dropping a valve into a cylinder. I dont know if a basic handyman can do it. It is pretty involved taking the cams out and having to redo the timing once your all done. And to do that, you have to remove the timing chain cover, which in turn means you have to remove the engine mount, and so on and so forth lol
There are quite a few things you have to do and its def a two man job. If you havent done it before I wouldnt recommend trying it yourself. Luckily, one of my best friends is a genius when it comes to all this and he was on hand helping me out and telling me what to do lol
I must admit, it was pretty cool doing it though

Sweetsandman

iTrader: (-1)

Hmm...well...luckily ZZP is only like 4 and a half hours away

Matt M

You need to be careful with that. Most of the time when an Ecotec valve cover gets baked after powder-coating, the plastic baffles in the pcv passages melt and then it doesn't vent good anymore.

HHRSSouth

Good info there, I didn't know that.

Terminator2

Seeing as a normally 380-385 whp LS3 put down 347 whp (10% less then a dynojet) on that dyno a fully bolted and tuned stock turbo lnf on an E-blend would likely put down ~320 whp (10%less than a dynojet). So all and all I would say the BNR 2871 is worth about 70-75 whp over the stock turbo. I would say if he dynoed his car as it sits right now on a dynojet it would have made 10% more power which is 430 whp and 470 wrtq.

drewbroo

iTrader: (2)

You are correct sir. And the sheet I got is my low numbers. I will get the other sheet next week with my 398whp run

Matt M

But then again we did 360 sae(373 std) on a Mustang dyno with the k04 on E85 when I was still running stock cams. We would need more test samples.

drewbroo

iTrader: (2)

My numbers are sae. I also have elevation working against me. Also an srt4 w/ a gt3076 on full e only put down 435 whp there. He has done over 500 whp on a dynojet in phoenix. Also an nsx put down 218whp on it. It was a stingy Dyno, I'm good with it. If I make good numbers on that Dyno, I will do well on any Dyno.

drewbroo

iTrader: (2)

And was this on your dual feed rail? Your shop cars have much more available than the average joe.

Matt M

No, it was stock fuel system, stock head, stock cams, ZZP silicone intake tube, charge tubes, IC and exhaust, and E85 from the gas station up the street. Nothing fancy.

Matt M

But the posted numbers are corrected, so elevation isn't really working against you.

Matt M

I'm not knocking your numbers. They show solid, respectable gains. I'm only responding to someone saying that they are 70-75whp over k04 numbers, which they are not.

drewbroo

iTrader: (2)

We need to get in on the secret to running full E85 then.

Matt M

There wasn't any secret. It was september/october. It was 75% ethanol at the most. The stock fuel system easily supported it at anything over 4500 RPM.

drewbroo

iTrader: (2)

its a decent increase in WHP, only comparison I have is the 334WHP run on a dyno jet in FL. Also an E47 fully modded cobalt with basically the same mods as me put down about 50WHP less on a dynojet at 1000 ft of elevation. So a 60-70WHP increase isn't out of the question. I am also on very conservative timing.

drewbroo

iTrader: (2)

Yeah we don't get E75 down here.

raver0789

Nice job guys!

This is something I won't be doing. IMO Dollar value isn't worth putting a few grand for this for the gains.

My next step will be fully forged zzp motor, efr turbo, stage 4 plus clutch, zzp trans, and 600whp.


In a couple of years.

Sweetsandman

iTrader: (-1)

It's ~$1200 for the 2871 IIRC...not a few grand. Good luck with your potential future build

HHRSSouth

I have $1500 into my BNR 2871, thats with me buying a new Tial Q BOV and re-tuning.

Have fun spending $2-3k + on any other turbo upgrade

Terminator2

Nope but I seriously douubt a fully bolted and tuned stock turbo LNF will make more than 320 whp on that dyno he used. Do you honestly think that it is normal for a brand new LS3 to make only 347 whp? Sorry they normally make 380-385 whp on a dynojet.

Terminator2

Your stock turbo LNF also made 240 whp on your dyno. Your mustang dyno reads higher than any other mustang dyno I have ever seen before. Stock LNFs make 210-220 whp on Mustang dynos normally. Many cars I have tuned have reached their fueling limits on the stock turbo on E-47 at 24 psi and lower whp and wtrq numbers than your shop car on E-74. Hmm I wonder why? The torque limit on E-47 is about 425 wrtq and on E-74 it is about 10% lower or ~382 wrtq.

Terminator2

When Nick goes to dyno his 5857 turbo you should bring your car to that dynojet to redyno it. I am willing to bet it will make about 425-430 whp and 465-470 wrtq on the dynojet. Fully bolted and tuned E-47 stock turbo at 24 psi makes ~355 whp on that dyno.

drewbroo

iTrader: (2)

I will bring it up there. Again, I am happy with the numbers I made on a mustang dyno. Also the better air up there will make for some better power.

Terminator2

The dynos will correct the numbers for the DA but we both know that that mustang dyno you used reads lower than the dynojet Nick made 353 whp with the stock turbo on. I wish you would have run your car on the stock turbo on there for before vs after gains.

I am happy with the numbers as well but the torque curve could be better up top. I have 2 ideas idea that just might help that issue.

drewbroo

iTrader: (2)

I am open to anything that does gains. The shop just opened up a few weeks ago, its a really nice place. Here is pictures from there.











The vette in the pic was also an LS3 and put down in the low 340's.

here is a vid from my 398 pull.

YouTube - drew cobalt SS on the dyno

the dyno operator thought I was knocking at the end because of the power dip. (I was logging in the passenger seat and saw nothing of the sort.)