Post by
CA19DET »
https://forums.nicoclub.com/ca19det-u7344.html
Fri Oct 15, 2004 5:12 am
well i fianlly got to the dyno, after many months driving around on a LAME A$S fuel and ignition map, as well as a fualty CAS harness...
we made about 14 runs for about $70 US from the local Dyno - gotta love it..
the first 10 or so were a waste cause only after we found the CAS harness causing the ignition cut at about 4500rpm, thats after we changed the plugs and checked the coils, ah well...
finally it was the Deltagate that was the big let down. it made 9-11psi all night, then the last few runs it made ~11psi till about 6000rpm then it creppt/spiked hard to almost 17psi @ 7500rpm before i backed out. i ripped out the manual boos tcontroller, but ti was still spiking, i am thinking the deltagate is toast.. or the spring just cant hadle it..
i also didnt have the top vaccum port hookeed up so i think thats was part of it too, the boost/vaccum signal from the manifold would keep the diaphram closed under heavy engine load and boost... i'll try a few things over the weekend...
i changed the rev limit to 7500rpm for now and let me tell you, the boost spiking to 17 psi at 7000rpm IS CRAZY.. when everything is sorted i'll make a pull at 24psia dn see what happens..
Engine is as follows
CA18DET - JE 84mm Pistons 8.5 CR, Crower Rods. Total Seal Rings, Tomei 260* 8.8 PROCAMS, Tomei valve Springs and Cam Gears, HKS 1.6mm HG, Turbonetics T3/T04E 50T w/ .63 A/R stage 3 turbine, deltagate, 550's, walbro, XS engineering silvia intercooler, Haltech E6K, manual boost controller, etc etc...