There all on dynojets.

 

i think the most realistic number is 420, and i believe that is what ams told me was entirely doable when i asked them long ago.

 

how much more power would the 3076 make than the 3071 at say 26psi with pump and alky?

the graphs you posted are very interesting, as the spool up seems the same. most people say that the 3071 spools 500 or so rpm faster than the 3076, which seems to be untrue unless something was different in the tune between the two.

i want to make sure i choose the right turbo for the right reasons. i am looking for the most power and performance from 91oct and alky. i live in a high elevation area, so the 35r is out of the question. i have narrowed my decision down to these two turbos, as i once considered the 20g, but realized that the turbo kits will probably provide better results. i definitely would appreciate your recommendation in my situation.

 

I think 450whp is doable with a 3071, but only on racegas.

On pump gas you would be lucky to break 400whp on your average dynojet and still have a safe tune. On the street my 3071 spools up at 3500 rpms ... mobounce who runs the same setup as me, but with 264 cams instead of 280s spools up at 3300 on the street.

l8r)

 

IMHO, I would go with the 3071. If you only want 26 psi, the extra lag associated w/ a 3076 wouldn't be worth the 10-20hp increase in performance.

As for 3071 spool up, the graph above is the only one I have ever seen for a true GT3071 turbo. I really believe that a 3071 will spool 300rpm-500rpm faster then a 3076, but haven't seen any evidence of it. Next year i am going to try a hybrid GT3071 and see if I can get 23psi by 3800rpm.

 

A 3076R will make 50WHP more then a 3071. A 3071 flows LESS then a 50Trim which flows 49pounds of air, the 3076R flows 52Pounds.


A GT35R flows 62 Pounds.......

 

is this an actual fact? i would think it would make quite a bit more power since it flows more than the 3071. i know someone that made 420whp on 91oct, which is why im asking how much more power it can make with alky injection.

another question i have is: how much power does an alky kit add to turbos like the 3071 and 3076? it seems like for the most part it adds about 40-50whp and around the same in tq on the stock turbo.

 

On our MD, which is about 18% lower than our old Dynojet, we made 351 whp on the 3071 with pump/alky at 25 psi.

The 3076 on an AWD Dynojet at Pruven's shop I was only able to hit 440 whp on C16 race fuel.

Looking at this there is about a 40 whp difference between the two. But.....I just remembered the 3076 was also at 30 psi.

David Buschur
www.buschurracing.com

 

FWIW, we routinely see 460-480whp (awd dynojet) with the 3076 on 100oct or pump/meth mixture. On the 3071, we usually see 420-440whp on similar fuels. Both at 30psi although the 3071 seems to naturally taper down to 25-26psi by redline.

2c,
shiv

 

Between 3071R and 3076R whats the spool up difference.Roughly

 

turbos on these cars are they your turbo kits?And are they the new kits

 

edit, double post.

 

These are the numbers i am looking for(450+whp), thank you for the post. is it worth it to get the 3076 even though it spools slower than the 3071? is it safe to run 30psi on pump and meth?

 

From what I've seen, I'm guessing 300-400 rpm ... assuming identical mods. A simple change such as camshafts or just camshaft timing will affect spoolup greatly.

l8r)

 

Yep, and kinda why David Buschur says to go with the 35R, it may be laggy but is streetable with proper mods and MASSIVE power potential, like Enzo beating power from a roll and will easilly make another 100WHP then a 3076R.

I personally like the 3076R, it DOES spool faster then a 35R, noticably, and will make a nice and SAFE 500WHP on a stock bottom end, which is why I like it, if you want to exploit the 35R, you need a built bottom end, the 3076r is right in line with what the stock bottom end can handle, which is 500WHP.

The 3071R is also great but CAN'T hold 30PSI up top, the 3076R CAN, so you can see why I love that turbo, I hope this helps.


Can't go wrong with a 50Trim either, essentially the same power wise as a 3076R, slightly more laggy, Turbo Trixx has a BB one and it is awesome as long as Inovative makes them right. I have a Inovative NON BB unit, it's fine.