The bolt on efr Sean takes a 7163 supercores and machines the porsche turbine housing to fit.
as for his k24/71 I'm sure the housings are cast in Taiwan as possibly the wheels. They have just as good or better manufacturing as the USA for about 1/2 the cost. I've had housing and wheels made their myself for 10 years and can tell you that do a much better job than most places in the usa.

I'm not sure on what Sean uses. To note that Taiwan turbo and Chinese turbos are very different.

 

Darren did 1080awhp on his srm 7163 turbos. 800 isnt even breathing hard for these turbos.
15psi at 3300 rpm and 28 psi at 5200. Hard to find another turbo that spools that fast and still handle 1000+ hp

 

Chinese/Taiwan turbos are not the same. Does SRM warranty them? A quick search of their history is not that great.

 

Not yet they don't. Metal is not the same. The oversight for manufacturing is not the same. There's a reason why things are cheaper overseas. Not knocking them totally, but you can't compare USA manufacturing to China.

 

800hp on 3082 xona ball bearings are not breathing hard also lol. Ahh xona turbos spool as hard as a k24 7163. 7163 makes same or less power then a 3082 xona turbo and at 5200rpm.

3076 xona makes a tad less power then a k24 7163.

 

Cant wait to get this little red devil back on the street with these turbos, ported heads, upgraded cams and so on..
Now i really really really need Sean to send me the last parts..
Sean promised that my rods and wiggins clamp parts will ship out today, so as soon as the rods are here I can start assembling the engine..

 

Sean had an issue with the first few sets and problem has been fixed.

again China and Taiwan are totally different. The machining and manufacturing ability there is huge and a lot more very high end automotive parts are made there than you think.

Down on China parts I'm with ya but quality Taiwan manufacturing is just as good as 95% of the stuff made in the states.

 

I would agree on that. I had a issue with my turbos from SRM but he changed my turbos with no questions asked. He's a straight up guy and his fuel system works great no issues.

 

the 3082 is going to spoil slower than your 3076 Keith. It's a gt35 side comp wheel. The turbine side again is going to limit you higher rpm and boost is where the efr turbos really shine. Because they use titanium turbine wheels and are so light, they can up side the turbine wheel and gain much better efficiency and flow on the got side. This is why a efr compared with a one side larger Garrett for up. A 7163 makes 3076 power even know a 3075 uses a larger compressor

 

Guys, please take this in another thread
For several reasons EFR7163 was best for what I wanted.
Xona might be better for others
Doesnt matter - they will both be great fun on the road

I wanted to update that turbos are here and I cant wait to finish this build!
Now I just really really need Sean to send me my last parts - he promised to ship them this week.
So hopefully my rods will soon be here so I can start assembly of bottom end.

 

I have a new OEM pump that I was looking at and it seems simple to drop in a Walboro single 450 into the stock basket. Should work well enough for decent HP.

 

It does not, it makes more. I have tried this.


SRM EFR7163 is a great bolt on option, they are cheaper, they usually have a much shorter wait than Tial ...... but the Xona A3076s make more power and spool faster.



here is a 3076 making 1050whp at 27psi. 1700cc injectors. ProEFI 112, stock 3.6L pistons, stock cams, just rods, headstuds and ported heads. SRM dual walbro 450 fuel system. car is out of fuel pump, once he takes care of that and cranks it to 30-32psi it will make 1100whp the way it sits. we experimented with EFRs on this same car and it made less whp at more boost.


this is the same car that ran 9.84 on the 1/4 and 4.5s 60-130 several months ago on SRM7163s making 930whp.





https://youtu.be/P6sYrRDEm1E

 

Sure we can run thru those real quick, even apples to apples your turbos made less with better air inlets.


Setup 1:
- Xona A3076 @ 30 psi
- Silicone Inlet piping, Stock Airbox
- X pipe exhaust 3" catless
- 965whp all in


One Alpha 3076 explodes and we decide to try EFRs while its getting rebuilt/replaced by Tial. We buy a set from SRM it arrives in 1 week, while it takes Tial 4 months to handle the turbo that went bad.


same car, e85, same standalone, same tuner, same dyno


Setup 2
- SRM EFR7163 @ 31 psi
- Upgraded aluminum fender turbo inlets with individual air filters ( ditched silicone inlets and stock airbox)
- Same X pipe exhaust 3" catless
- 930whp all in , 9.84@149mph 1/4 mile , 4.5 60-130


Anyway you twist it, car made less power even with having better air intakes now.





Setup 3
- back to Xona A3076 @ 27 psi
- Same upgraded aluminum fender turbo inlets with individual air filters
- Same X pipe exhaust 3" catless with now added boost activated cutouts
- 1050whp out of fuel pump, no time slips yet because our tracks are closed and it has been snowing here and there.


whp Difference at 7200rpm = 200whp now







NOTE 500 wheel torque at 3000 RPM. I haven't seen any 7163 dynos on a dynojet showing this kind of spool.

 

Thread cleaned up...start your own argument thread gents

 

EFR turbo struggles passed 30psi vs xona turbo. 3076 and 3082 can go passed 30psi with no issues. Plus I'm switching from the 3076 xona to a 3082 xona because the event is higher elevation.