Done deal.. Maxed out 4.8L/76mm Magnum. Next?
Oct 13, 2012 | 10:00 AM
#191
This is the same timing table I'm using on my 89 and on my brothers 4.8 (Jake99) mabe we could use more yet? We're both running on straight E85
The boost timing is the one I was using on my 89 at the track running 50/50 91/E85
The boost timing is the one I was using on my 89 at the track running 50/50 91/E85
Oct 13, 2012 | 10:03 AM
#192
Oct 13, 2012 | 04:46 PM
#195
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Thanks for posting up guys. I'll be getting home tomorrow. You all got me excited about tossing some timing in this girl down low. I also want to try one more thing to see if I can get more flow with the 40mm wastegate. One is clean up the flanges to make sure i'm getting a full 40mm, and also cut a coil on the spring and test it with compressed air. If the valve move further back, it should flow more.
That doesn't work I got a hit on a local with a brand new JGS 60mm gate for 425. I'll likely pick that up. That almost a 2.5" valve, so damn, thats venting the whole left bank, should get the job done.
That doesn't work I got a hit on a local with a brand new JGS 60mm gate for 425. I'll likely pick that up. That almost a 2.5" valve, so damn, thats venting the whole left bank, should get the job done.
Oct 13, 2012 | 04:57 PM
#196
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If your going with pump 93, I would give yourself some room and go with some 60's and call it a day. E85, go with 80s. Next, honestly if it's for you old lady, a 76mm@10psi & a stick wiil make well over 500 wheel and be hand full for her. My 70mm made 523/523 at 10psi and 17 degree's timing. You would also likely be fine with 15-17 timing on 93 and 10psi with a good intercooler.
Once 10psi starts feeling slow, or she's feeling froggy, then turn it up.
Oct 15, 2012 | 06:12 PM
#198
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Little update, got the 5" intake in and turbine blanket. Hope to have 60mm JGS installed tomorrow, then maybe track Wednesday for some testing if I get a tune on her in time. 
