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In the time after swapping to the high output pump, the problem of too much switched current, re; the ignition switching on the combined [computer + fuel pump circuit] eventually stressed the electrical box to the point of internal arcing and subsequent relay failure.... the result, (a common problem with early Chevy efi systems), produces a result quite similar to our DME relay issues.... I went about searching the internet and found where to check for a burnt relay... opened the computer hatch and found the suspect relay was clearly 'burnt'.... The events that brought this discovery proved yet again, that a good amateur mechanic like Doug Bray can keep this beast running indefinitely.... i didn't want to go near it, but Doug went straight to work......
By re-routing the fuel pump circuit and simply running a pigtail off the ignition wire into a new, dedicated relay box, and by changing the oem 14 (or 16) gauge wire to #10 wire, the high amps/high heat running on 1 circuit is now distributed to 2 low amps/low heat circuits.... Now my computer is running cool, and with plenty of juice.... With about 4 hous of work, Doug ascended to legend status... because not only do i have a perfectly running engine with just the single turn of the key, but this relatively easy upgrade can be done for the 944/968's running the oem engines. .... re; no more DME relay issues.....
Last edited by odurandina; 12-17-2017 at 04:38 PM.
I can't easily express how amazing it is to have the perfect gear from 3rd to 6th running these tall ratios,
and the short stroke LS7 engine running @ full power.
back roads.... spirited driving on the twisties whatever the speeds...... Pacific Coast Highway.... freeway driving.... and steep mountain grades!!
sublime!
once you experience it, there's no way having 944/T gearbox combo running the tall 5th will suffice......
just not enough performance there.....
to cap it off.... look at that final ratio (last pic)!!
I can't easily express how amazing it is to have the perfect gear from 3rd to 6th running these tall ratios,
and the short stroke LS7 engine running @ full power.
back roads.... spirited driving on the twisties whatever the speeds...... Pacific Coast Highway.... freeway driving.... and steep mountain grades!!
sublime!
once you experience it, there's no way having 944/T gearbox combo running the tall 5th will suffice......
just not enough performance there.....
to cap it off.... look at that final ratio (last pic)!!
Sweet pics OD. Will you be back east in time for Hershey? Love to see that monster!. Could you get that full size spare in the well with some carpet mods?? Cut a little hole in the carpet and build a CF roof over the hole!!
Will you be back east in time for Hershey? Love to see that monster!. Could you get that full size spare in the well with some carpet mods?? Cut a little hole in the carpet and build a CF roof over the hole!!
i drive through Hershey often. Never in April. Maybe some day. ....Car is at Lart's Cut, Chop, Sawzall 'n Ship getting back breaking Koni stuff so i can tear up my ball joints, tie rod ends, etc on whatever you call that sorry excuse for an interstate between LA and Boston. Probably cheaper just to ship the car home. .....i drive the 968 trillions of miles on a stock suspension because it's the only way to not destroy everything else. Better to sacrifice sets of stock shocks and caster blocks every 15-20 k miles,
12-17-2017, 02:47 PM
