Can't Decide on a Turbo Upgrade

[highaltitudesky]

Hey all,

I'm having trouble deciding on a turbo upgrade and would like to get a little input from you knowledgeable folks. My choices are:


1) DDMWorks GT2871 Upgrade - DDMWorks GT2871 Turbo Upgrade

I like the price and ease of this upgrade and have heard good things.


2) Werks WR-3 Upgrade - The Home of WERKSracing products!

A bit more pricey but more power and still an easy upgrade. More lag though? I've never heard anybody talk about this one.


3) Werks 6758 EFR Kit - The Home of WERKSracing products!

Expensive and additional upgrades required, but lots of power with little lag, scaleable, and I've heard great things.


I'm currently running E-85 with a Terminator2 custom tune, Hahn IC, DDM IC pipes, Solo HF cat, 3" Magnaflow exhaust, and K&N drop in filter. I'd like to get around 400whp.

Any thoughts or suggestions?

[miller11386]

Option 1 with E85. You will meet your power goals and should see full boost by 3k rpm

The werks kits are nice, but #3 is a unicorn and never in stock. #2 The WR-3 is a good choice, but a little bigger so you will see more lag.

[Dave@ddmworks]

Originally Posted by highaltitudesky

Hey all,

I'm having trouble deciding on a turbo upgrade and would like to get a little input from you knowledgeable folks. My choices are:


1) DDMWorks GT2871 Upgrade - DDMWorks GT2871 Turbo Upgrade

I like the price and ease of this upgrade and have heard good things.


2) Werks WR-3 Upgrade - The Home of WERKSracing products!

A bit more pricey but more power and still an easy upgrade. More lag though? I've never heard anybody talk about this one.


3) Werks 6758 EFR Kit - The Home of WERKSracing products!

Expensive and additional upgrades required, but lots of power with little lag, scaleable, and I've heard great things.


I'm currently running E-85 with a Terminator2 custom tune, Hahn IC, DDM IC pipes, Solo HF cat, 3" Magnaflow exhaust, and K&N drop in filter. I'd like to get around 400whp.

Any thoughts or suggestions?

The 2871 with E85 will get you 400whp, anything over that and really you want to be thinking about having some engine work done for longevity. That 400whp area on a Kappa is the level at which we recommend it.

[RedSkyWV]

With a good E85 tune even on the stock turbo I'd assume you're making well in excess of 350. The 2871 will get you over 400 easily.

Properly done, the 6758 will get you at least another 100, but it's expensive and hard to get ahold of.

[Elff]

Option 1 will but with E47

No fueling issues, and almost the exact amount of HP.

It's been found that a E47 is a better choice on our cars vs straight E85

If you go this route, just make sure you add the E85 seals to your fuel injectors.

[highaltitudesky]

Originally Posted by Elff

Option 1 will but with E47

No fueling issues, and almost the exact amount of HP.

It's been found that a E47 is a better choice on our cars vs straight E85

If you go this route, just make sure you add the E85 seals to your fuel injectors.

I already have the seals installed. That's why I borrowed your injector seal tool...

[Elff]

I didn't even notice you started the thread.

It's been one of those days.

Between me, Miller, DDM Dave, Terminator and 40rty
You have alot of people who really like their 2871
and
have had zero issues with it
[Mine has 18months of use]

On meth or E47, it's like a Raped Ape

not that I condone the raping of Apes

But if I did, it would be with a 2871 Turbo'd sky

[premlor]

Are the injector seals all you need to change in order to run E85?

[Elff]

Yes

With the LNF being direct injection, the fuel is not sprayed over the intake valves.
The rest of the system shares parts with the Flex fuel HHR. As such, GM does not sell E85 resistant Valve seals.

The only time you might remotely want to consider those, is if you add a 5th injector, but so far, that has not been an issue for the guys running that either.

[werks]

I highly recommend E-47 over E-85 for fueling. Best of both worlds in my opinion. I raced my GXP Coupe on it all last year and it ran strong all season long!

We have some new EFR bolt on turbocharger solutions in the WERKS, contact me for details on these

[highaltitudesky]

One of the things I like about the WR-3 over the 2871 is that it has a BPV instead of having to install an external BOV. My understanding is that our MAF doesn't always get along well with BOVs, and BPVs tend to be more efficient and keep the turbo spooled. I'm not super knowledgeable about the inner workings of turbos so I may be wrong.

On a side note, is there any way to approximately determine turbo lag, say, based on the sizes of the compressor and turbine?

[premlor]

Do you know of a link to the injector seals I should get to run E47 or E85??

I don't think I've seen E47 at any stations near my house though. What about 103 octane racing fuel??

[Elff]

For the fuel injector seals, You have to buy the whole kit, but it is cheap
LNF Fuel Injector Seal Kit 217-3425 12633374 12653395
(You only need the black ones)
As far as the BPV vs BOV
Good tuning will make that a non issue and you can alway recirculate it.
One EFR install added a synapse BOV just for the sound

[premlor]

Ok, so I am not familiar with E47. Is this a mix you buy or do you mix your own?

[highaltitudesky]

Originally Posted by premlor

Ok, so I am not familiar with E47. Is this a mix you buy or do you mix your own?

Find a gas station with both E-85 and 91 octane and mix them 50/50.