Ddnspider's- Project Wrong-Way- Rear Mount Turbo Thread
#686
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
The GT67 and the 7665 had essentially the same turbine wheel just a different AR and obviously a bigger compressor side on the 7665. The 7875 I believe someone on here already posted measurements on. The 7665 was good for about another 100 hp over the GT67 for me.
#688
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Good to hear. I've always like the way turbos sound in rear mount cars too. Get some videos.
#689
8 Second Club
iTrader: (13)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Most people come to find that a properly sized turbine isn't much if any laggier then an undersized one. I have a 102/112 wheel on a 5.3 and can roll into the throttle at 2K RPM and have boost, much the same way I did with the 75/83 turbine. Difference is the larger turbine breathes even better up top, which you should realize as well moving up 10mm.
#692
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
In other news I discovered last night that I have 4.10 gears. I'm sure that's doing a great job loading it down to light off the turbo
![The Jester](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_jest.gif)
#693
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
This 7875 is just excellent. The rearmount is giving me just enough boost limit in 1st that I hook up no problem and in higher gears it just wants to keep pulling even at 7k. I'm maxxing the frequency on a 50% scaled LS7 MAF. It would be even crazier if I didn't have 4.10s I imagine. So glad I chanced the $260 on this turbo. And the meth kit is working great too. I managed to get the LED in the center console vent next to the wideband and boost gauges so I can see when it turns on and I have guaranteed flow. Nice that all the bugs are sorted and everything is working right and I get to enjoy the car.
The following 4 users liked this post by ddnspider:
#696
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Yes, same one on ebay. It was a direct swap for my 7665 without a problem. Only change was the compressor outlet coupler size for me. Otherwise dropped right in.
In other news I discovered last night that I have 4.10 gears. I'm sure that's doing a great job loading it down to light off the turbo![The Jester](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_jest.gif)
In other news I discovered last night that I have 4.10 gears. I'm sure that's doing a great job loading it down to light off the turbo
![The Jester](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_jest.gif)