Turbo Ignition Rant
11-13-2015, 05:14 PM
#176
SARX Legend
iTrader: (46)
Brettus, what did these cars run boost-wise? Would be curious to know if we all ran into issues at the about the same. The tipping point for me was 14-15psi...
9k, I don't have any first hand info on the other cars but I am still running stock coils. To recap my experience: I ran 17psi with ZERO misfires hitting over 230% load, pegging the MAF at 4.99V and dyno'ed 430RWHP all on the STOCK style (eBay no less) coils until I popped the motor last summer. I never could get that far with the 585 coils, they always pooped out by 14-15psi, if not sooner. I still maintain: if it were a tuning issue then why would the stock coils run just fine with the only changes to the tune being stock dwell vs increased dwell for the 585s?
I've been slowly turning the boost back up over the last year, currently running 14-15psi peak. Peak load is currently hitting over 225%. MAF is hitting 4.79V. Got a little timing pulled in this log, which I adjusted for but haven't taken a new log yet. Will be adding W/M this winter before I go higher. Constantly spinning 275 tires in 2nd gear, sometimes third. Point is there is no doubt I have been putting down some decent power for the last two years on the STOCK coils with ABSOLUTELY no misfires. If people want to spend money on other coils that is fine by me, I personally have not seen a need for other coils up to the limit of the MAF, at which point a number of changes will need to be addressed. How many other Renesis cars are running at the same boost/load levels? Perhaps we need a larger sample size. If my situation is a fluke so be it
9k, I don't have any first hand info on the other cars but I am still running stock coils. To recap my experience: I ran 17psi with ZERO misfires hitting over 230% load, pegging the MAF at 4.99V and dyno'ed 430RWHP all on the STOCK style (eBay no less) coils until I popped the motor last summer. I never could get that far with the 585 coils, they always pooped out by 14-15psi, if not sooner. I still maintain: if it were a tuning issue then why would the stock coils run just fine with the only changes to the tune being stock dwell vs increased dwell for the 585s?
I've been slowly turning the boost back up over the last year, currently running 14-15psi peak. Peak load is currently hitting over 225%. MAF is hitting 4.79V. Got a little timing pulled in this log, which I adjusted for but haven't taken a new log yet. Will be adding W/M this winter before I go higher. Constantly spinning 275 tires in 2nd gear, sometimes third. Point is there is no doubt I have been putting down some decent power for the last two years on the STOCK coils with ABSOLUTELY no misfires. If people want to spend money on other coils that is fine by me, I personally have not seen a need for other coils up to the limit of the MAF, at which point a number of changes will need to be addressed. How many other Renesis cars are running at the same boost/load levels? Perhaps we need a larger sample size. If my situation is a fluke so be it
Yeah I bet your car is a beast, I wish I had a big boy turbo already. There are so many variables and the turbo Renny is a finicky beast. Your actual dyno numbers are motivating but as we have seen, maintaining that kind of power is tough. I don't even bother with looking at the virtual dyno stuff. I am excited to get the PTP kit on and the BW EFR and Adaptronic, I want to see what is capable with a decent amount of reliability. Hopefully E85 will allow me to push it a bit.
The fact that you are doing it on stock coils is somewhat surprising but results speak for themselves so if it works then leave it alone. I had BHR coils long before going turbo, in fact the three local turbo guys and the Pettit SC guy all had BHR coils before going boosted so I am sure a good set of OEM coils is fine for most setups.
11-13-2015, 06:37 PM
#177
Yeah I bet your car is a beast, I wish I had a big boy turbo already. There are so many variables and the turbo Renny is a finicky beast. Your actual dyno numbers are motivating but as we have seen, maintaining that kind of power is tough. I don't even bother with looking at the virtual dyno stuff. I am excited to get the PTP kit on and the BW EFR and Adaptronic, I want to see what is capable with a decent amount of reliability. Hopefully E85 will allow me to push it a bit.
The fact that you are doing it on stock coils is somewhat surprising but results speak for themselves so if it works then leave it alone. I had BHR coils long before going turbo, in fact the three local turbo guys and the Pettit SC guy all had BHR coils before going boosted so I am sure a good set of OEM coils is fine for most setups.
The fact that you are doing it on stock coils is somewhat surprising but results speak for themselves so if it works then leave it alone. I had BHR coils long before going turbo, in fact the three local turbo guys and the Pettit SC guy all had BHR coils before going boosted so I am sure a good set of OEM coils is fine for most setups.
The virtual dyno stuff is helpful as a tuning aid to look at relative changes. Make a tweak and see how the car reacts, then adjust. Since I know what the car did on a real dyno I am fairly confident that the numbers are in the ballpark. But again my use of the tool is more to look for relative changes while tuning, not absolute results.
11-13-2015, 06:40 PM
#178
20psi is definitely good results! I haven't ever intended to say that they are all bad, just that there are undeniable cases of problems.
11-13-2015, 07:39 PM
#179
There may be a possibility that something may have changed in the coils time wise, perhaps that may be why you don't hear alot of the older kits with issues and from what I see it's the newly purchased kits or warrantied. My original kit is currently in Konigs car with no issues and I took his recently acquired warranty coils which did not work out very well.
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