bhmsupra;1574767 said:
Any progress turbotoy? Ho about the stealth stereo install you mentioned? We're all hungry to see what's next.
Maybe you are too busy playing with that Lambo?????
Eh, too busy with grad school.
I finished the stereo over the winter, but ran into issues. I'm using a 93-94 ish MKIV head unit coupled to an Arc audio 4 channel mini amp. In the doors are Dynaudio 6.5" mids with Morel tweeters in custom fiberglass enclosures (all stealth) running through custom made passive XOs. Have an Alumapro Alchemy 10" sub in the hatch. However, the signal from the HU is proving very weak, and consequently I'm running into all sorts of noise issues I haven't been able to overcome yet. I really want to stick with a near correct period Toyota HU that fits and looks correct. I may just rip it all out, and go back to 100% original. The original deck was a cassette only unit, and is dead. I've been looking forever for an 89-90 CD HU (with built in amp) but they seem to be beyond rare. I'll probably just try to find a clean cassette only unit and run with that.
I've put a couple hundred miles on the car this year, and it is downright awesome. I'm running with nothing but the original Lexus AFM screw all the way in and hitting reasonable AFRs across the board. Running rich way up top, but that's fine, I really don't care. It pulls hard from 3000-6000, and that's fine. I'm seeing 85% injector DC with AFRs in the 11.5:1 range, so there's minimal margin left in the fuel system anyway. I also know from running the SP-63 and VPC setup before that I have minimal margin left before I can not supply sufficient fuel pressure. These two facts alone suggest that running a larger turbo using 550s/MKIV pump/stock fuel lines is likely not justified and will get you nothing but more lag and possibly a slightly greater peak HP number that means little on the road.
The biggest thing I wanted to report on was the suspension.... I've driven MKIIIs with the following setups (all on the same Racing Hart 17" wheels/rubber):
- stock springs/struts in poor condition
- Tokico springs/TEMS shocks, S/T sway bars
- Tein RA coilovers, S/T sway bars, nylon suspension bushings
- current car - 100% original (non-TEMS) and in excellent condition
Let me tell you, for rough upstate NY roads, the original suspension setup in good working order is BY FAR superior to anything else. Trust me on this. Yep, there is more body roll and it looks like it needs to be lowered visually, but it stays hooked up FAR better than any of the other setups. On a couple of the roads I play on frequently there are corners I can take dramatically faster than I could with the Tein RAs. On a road course I'm sure the Tein RAs would have shown their stuff, but the roads here are just too rough and on numerous occasions I would face rear-end step out due to bumps on corners. Eventually you realize that 99.99% of the time a MKIII spends is NOT on a road course.
My guess is that very few current MKIII owners have ever driven the car with good condition OEM suspension components.
Just my $0.02 after a lot of money and time spent.