reworked stock turbo

[Ryz]

i have a boba fett helmet in my closet. i will fill it with cookies and send it to Ryz.

Gimme, gimme.

 

[driver311]

lol at starwars nerdz x2

When I was younger (10 or 12) my brother and I had a 4minute light saber fight routine all over the living room, jumping off of couches and etc. Those were the days.

My feeling on turbos at this point:

I'm going bigger, no doubt about it. Ken has something in mind for the stocker I sent him and that is awesome. I wouldn't mind finding something that utilizes the stock downpipe flange, because it would be cheaper and more practical for all of the guys that already have aftermarket downpipes, and thats exactly what Ken at PG has in mind too (as far as I know)

I plan on getting something that can put down near 350-370whp with all supporting mods (I/C, dp/midpipe, intake) at under 22psi or so. I don't mind lag at all, I'd prefer it. As palerider said, the lag is actually a nice gift to the tires. I just replaced my potenzas (got in may 07) at christmas time 2007. they were bald. Now my 912 all seasons aren't lookin good in the front either. I drive too hard too much. The cold weather doesnt help them stick either, instead they just heat up and burn rubber on top of the surface.

Anyways, I'm sold on the 3071r, but don't wanna limit myself for the future, so I think the 3076r would be a better choice for me. Maybe 400rpm later spool when I've got the 3" DP and PG exhaust manifold? I plan on getting a 1949-1953 Chevrolet Deluxe Cab 3100 truck out of school for a daily, and have the mspeed as the grocery getter and night time fun car.

So a spool time of 4k or so? I can live with that. Pushing under 18psi, with no map clamp, even better, less fooling of the ECU.

The top end of the power band will be taken care of eventually (throttle plate closing) by Cobb, CP-E, Xede ProCede system maybe, or maybe what Nutari's 'standalone interest' thread has to offer, if not someone else behind the scenes at this point. I have ideas and am working with a company on my own time to try and figure out what parameters the ECU is seeing to close the throttle, to see if there is a simple fix.

Conclusion:

Bigger is better, but not 35r bigger. I think (know) the 3071r and 3076r are the best turbos available for the car at this point. If you're not going to build the bottom end, go with the 3071r. if you are, or are considering it, go with the 3076r. Both setups will be very streetable. The sucky ECU will be reprogrammed eventually (time is all thats against it), and a the fueling is fixed, and there are forged motor options out there. ATP offers these solutions with a propietary flange setup to force consumes to buy their downpipe (good marketing idea), yet it sucks at the same time. If something is to come relatively quickly with the same sized setup on a stock exhaust flange, you can bet I'll be on that.

Until then, I'm sold with ATP's 3071 or 3076r setups. (usa)

3076r is not a good turbo for this car. If anything a 2871r should be first choice and the 3071r should be the choice for people who dont mind lag and are planning on going over 400whp. Im telling your right now from experience the 3076 r is just to laggy and doesnt make good power until your over the 22psi level. Ive done that turbo on two different cars and the 50trim just always spooled better and made more power pound for pound under 25psi. Plain and simple. The 3071r is just a little bit smaller than the 50trim and spools harder. Great choice for people wanting big power. You can hit 450whp with this turbo. If your looking for 400whp being your max go 2871. if your looking for around 350whp, go big wheel stock turbo. Thats what im going with. Hopefully Ken or John gets on the ball and puts one in my ride soon. LOL

 

[ericrapp]

When the turbo comes on later it 'lag' aren't you just postponing the wheelspin a 2 stage boost controller might be helpful? But good point about throttle plate, is this the tuning gremlin that wont allow it to run power to redline? I am aware there is my involved than just the one piece of the puzzle 157. But it seems this issue will need to be overcome regardless of how you approach your tuning? Good luck with more turbo!

 

[palerider]

The 3071r is just a little bit smaller than the 50trim and spools harder. Great choice for people

Is this true? I thought the 50 trim was smaller than the 3071r.

 

[dkswim]

subscribed

 

[driver311]

Is this true? I thought the 50 trim was smaller than the 3071r.

3071r is a little bit smaller. This breaks them down in what they flow for air in lbs. per. min.

stock turbo around 35-38lbs.
2871r flows around 45lbs.
3071r flows around 47lbs.
50trim flows around 49lbs.
3076r flows around 53lbs.

 

[redspeed]

3071r is a little bit smaller. This breaks them down in what they flow for air in lbs. per. min.

stock turbo around 35-38lbs.
2871r flows around 45lbs.
3071r flows around 47lbs.
50trim flows around 49lbs.
3076r flows around 53lbs.

How is the lag on the 2871, if any? What about the 2876r?

I'm starting to agree with some people in here, that think we need some lag. The stock turbo is really good for torque, but that is the reason we're frying the front tires in 1st & 2nd.

 

[shadrag]

Later spool and lag are two different things.

 

[driver311]

Later spool and lag are two different things.

Exactly. Even the 2871r is gonna slow down the spool time. Even the big wheel upgrade will help wiht the turbo spooling to fast and aggressively.

 

[mrlilguy157]

?

we'll see. I'm still on the fence at this point. the precision 3076r we used on a 1.8l gti at 20psi was pretty balls out with a leaky log exhaust manifold (needed to be decked). with the extra .5L present in the disi motor, i'd be happy with it... I don't know. I haven't figured out my goals with this car yet. to build the motor or not...... I'll be onboard with AT LEAST at 3071r.

 

[ericrapp]

subscribed, keep this one alive fellas

 

[ms3guy22]

mrlilguy, as i was asking myself....maybe i should buy that turbo and see if somebody would port and polish it form me? Only to find out that now its gone.

 

[mrlilguy157]

mrlilguy, as i was asking myself....maybe i should buy that turbo and see if somebody would port and polish it form me? Only to find out that now its gone.

sorries.

the block looks like it may be gone soon too. I'm willing to forge it and ship for $3360 paypal'd. That covers the fees and shipping ~ $3250 NET COST

 

[palerider]

3071r is a little bit smaller. This breaks them down in what they flow for air in lbs. per. min.

stock turbo around 35-38lbs.
2871r flows around 45lbs.
3071r flows around 47lbs.
50trim flows around 49lbs.
3076r flows around 53lbs.

Thank you.... intersting. And I guess a reworked stocker would be around 40-41? I like the 3071.

What kind of power will I make at 15-16 psi with the 3071?

 

[mrlilguy157]

600whp

 

[palerider]

600whp

Man dont screw with me tonight. Im not in the mood...(argh)

I think 15psi was where Ken tuned their ms6 to 329.

 

[palerider]

Modern Performance's turbo work is very good. We've got a turbo coming to us thanks to mrlilguy which we will be re-working in a similar vein.

Are these guys in Houston, Texas?

 

[winniep]

I think it is a different MP................. I think the MP we are talking about is in Kentucky or Virginia/Carolinas area. Or at least somewhere that is not Texas.....

 

[Dream]

Later spool and lag are two different things.

(uhm)

 

[numbnuts22715]

I think it is a different MP................. I think the MP we are talking about is in Kentucky or Virginia/Carolinas area. Or at least somewhere that is not Texas.....

I believe its new jersey.
Its modern performance inc. that does these turbo upgrades.
hopefully ken or somebody comes out with something new, and pretty fast.