Porsche turbo boost reference timing retard

Post by **Jayme** » Fri Mar 13, 2015 4:50 pm

unless there is a hose running to it somewhere? or a TPS? does the timing change with throttle change if you lock the dyno at a particular RPM? if not then it musnt have load based spark control at all.....

and if there is no load based spark control... it will have TERRIBLE fuel economy.... add a decent spark system and it will literally be a different car.

Dylan · Post by **Dylan** » Fri Mar 13, 2015 5:37 pm

I reckon fit a 808 for spark control with a map sensor. One of VL400's guru modules with 12 LS2 coils.
Customer will love you!

Post by **vlad01** » Fri Mar 13, 2015 10:00 pm

antus wrote:Is there a maf sensor or map sensor connected to it? If not then it is just advancing with rpm like a weighted distributor with no vaccume advance would, with the only advantage being better dwell times and bigger spark than stock. Still far from optimal.

yeah I think you hit the nail on the head. This is very similar to the electronic dis-x style ignition in the aircooled market just a 6 cly version. it is dumb and only advances with rpm.

Biggvl,
Do you want to replace this whole system with delco awesomeness + VL400 ignition module? I would love to get involved if possible.

Post by **VL400** » Fri Mar 13, 2015 11:03 pm

If you do want to go down that path with it let me know and can get things happening. Sounds like fun

Post by **Gareth** » Tue Mar 17, 2015 8:09 pm

If you do want to go down that path with it let me know and can get things happening. Sounds like fun

Yep, lets do it. PM me with payment detail please.

Hey Vlad, looks like some late nights and pizza to come

immortality · Post by **immortality** » Tue Mar 17, 2015 8:11 pm

I'll be watching this one with interest.

Post by **vlad01** » Tue Mar 17, 2015 9:09 pm

Biggvl wrote:
If you do want to go down that path with it let me know and can get things happening. Sounds like fun
Yep, lets do it. PM me with payment detail please.

Hey Vlad, looks like some late nights and pizza to come

hell yeah!

Post by **Jayme** » Tue Mar 17, 2015 9:41 pm

owner will think its a different car to drive, and economy will be loads better, with some vacuum advance!

Post by **Holden202T** » Wed Mar 18, 2015 8:17 am

and the 2 step rev limit hahaha

Post by **vlad01** » Wed Mar 18, 2015 9:50 am

we will need to add some cylinder head temp sensors I think and monitor those with different AFRs and timing.

air cooled engine need to run a bit richer than water cooled ones. But the figures I dont know but I'll try to find out a ball park before we start.

Porsche turbo boost reference timing retard

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