JimVR4 95 Spyder Engine Rebuild

**DocWalt** · 01-02-2014, 03:11 PM

Your car makes me want a Spyder

Seriously, lovely work!

I had the same downpipe with the same fitment issues. The flanges warped because I had to crank down on it so hard... I ended up having to use RTV to make the downpipe gaskets seal to pass emissions.

BTW, is your oil pan dented or is that a weird reflection?

**Jimvr4** · 01-07-2014, 02:06 PM

Daily driving her until the break in is completed. Done about 100 miles so far. Logging AFR now and starting to tune. She's at about 14 psi wastegate boost. I think that's about the limit of my fuel supply right now so I have to upgrade my hot wire.

**Jimvr4** · 01-10-2014, 02:07 PM

I do have the AFR working right after discovering I made an error when I changed the WideBand Scaled scaling formula in Evoscan. Scaling stays at 0.0627 * x + 7.

Also found an odd issue where laptop and standalone Tactrix 2.0 logging methods give a different result for the IPW requests 2B and 29 (front and rear bank IPW). It looks like the standalone is incorrect on these.

I'm trying to figure out how to get the Evoscan soft gauges to display my Wideband Scaled number.

Also discovered that cruise control is not working and my ETAC timer delay is also not working. These are probably unrelated.

**Jimvr4** · 01-20-2014, 12:22 AM

The Spyder did DD service over the last couple weeks, logging over 500 miles in commute traffic back and forth to the office. She performed really well and has plenty of power at wastegate boost. So I dumped the Royal Purple break-in oil and OEM filter and the oil was clean of particulates and barely had any color other than purple lol. So I put in Rotella T6 and a WIX 51318 filter. The 1 gallon isn't enough, needed an extra quart. The filter fits up there and has plenty of clearance above the left member. But two things I'm not keen about are the clearance for torquing the sump bolt and there are no flutes or wrench fitting on the filter so it will be a pain to remove it when the time comes. On the plus side, the splitter still has enough clearance for the oil filter access. I cut a piece of drop cloth and taped it up there to keep the suspension clean when I pulled out the old filter.

Road trip time!! I logged 300 miles on a drive up to Winters and Lake Berryessa with the Norcal3S group. Chargerx3 had his 95 Stealth TT and Spider Dan had his 95 VR4 Spyder. The other guys had a R35 GTR, BMW 635is, and S2000. Plenty of fun was had with the twisties on this drive and the Spyder performed flawlessly on the whoe trip.

She deserved a drink for the drive home after a great day! Even with the spirited 7/10ths outing she managed 18 mpg. I'll take it!

**mb3000** · 01-20-2014, 12:36 AM

Absolutely beautiful!

**Djmba** · 01-21-2014, 11:45 PM

Very nice. 10/10 build.

**Jimvr4** · 01-28-2014, 01:41 PM

Thanks

Did some wiring work over the weekend. The front mounted camera was picking up interference from the Wideband heater circuit because I tapped into the same circuit for power and ground. I rerouted the WB power and ground to the beefier power wiring that my Viper alarm uses. Problem solved - no video interference now and the wideband also reads the same as it did.

I also hooked up pin 92 of the FECU harness to my AVC-R sensor which is a 3 bar pressure sensor. But first I hooked up the sensor on the bench and applied pressure with a Mityvac pressure tester. I was able to plot out the PSI / volts curve for the device and flash it into the FECU ROM. After hooking it up and trying out Evoscan I am getting a -8 PSI reading at idle which matches my AVC-R reading of 413 mmHG.

I also downloaded Virtual Dyno v1.25 and played around with my last logs. I don't have any complete pulls but I did have a brief third gear pull that I could load. I'm still at about 14 PSI wastegate boost and the log was done with only about 75% TPS and RPM up to about 5800. I'm seeing AFR a little below 11 and IDC around 60% in this log. I went into VD and adjusted the profile to reflect the 4123 lb Spyder weight and also my 26.03 tall tires (255/40/18). With all that it's reporting 317 whp. Obviously there is MUCH more power to be had.

Now that I can log boost I need to take the car out again and do a full 3rd gear pull. It's hard to find enough road here in NorCal as I think I'll be hitting 110-120 before third gives out. Probably keep it at wastegate a little longer until I see how the IDC and KnockSum react.

Having fun!