IH8TOADS Silver Donating Members 3,618 Member For: 19y 5m 26d Gender: Male Location: OZ Posted 14/08/15 05:06 AM Share Posted 14/08/15 05:06 AM Did you overboost to reach that turbine rpm? Interested in hearing more!! Link to comment Share on other sites More sharing options...
demon1300 Member 435 Member For: 12y 10m 25d Gender: Male Posted 14/08/15 10:23 AM Share Posted 14/08/15 10:23 AM I'm also keen in hearing some more info. There is bugger all people running EFR's fulls stop and I'm keen to hear peoples opinions with real world experience. Thinking of going 9180 myself. Link to comment Share on other sites More sharing options...
IH8TOADS Silver Donating Members 3,618 Member For: 19y 5m 26d Gender: Male Location: OZ Posted 14/08/15 10:39 AM Share Posted 14/08/15 10:39 AM mummba on this forum went from a 6466 T4 1.00 a/r rear to a EFR9180 1.05 a/r and he loves the EFR. The technology in the EFR leaves Precision for dead. It's a shame to hear about the failure posted above....but then again mummba only changed as the Precision failed.There is a budget Borg Warner version out soon called the S300 SX-E. It's a T4 platform and journal bearing but there is a whole lot of good about it!! 2 Link to comment Share on other sites More sharing options...
zc347 New Member 7 Member For: 17y 1m 16d Posted 17/08/15 01:16 PM Author Share Posted 17/08/15 01:16 PM Did you overboost to reach that turbine rpm? Interested in hearing more!!Yeah, had 2 separate issues causing over boost.The first one was boost spike on gear changes in 3rd & 4th. We believe from the blow off valve being small. Boost was spiking 5+ psi.The second was a restriction from the intercooler at high rpm. We were still using a PW stepped cooler at this stage, had a 6 psi difference from hot to cold side of the intercooler.The result was a spike to 30+ psi when there should have been 21psi. Link to comment Share on other sites More sharing options...
zc347 New Member 7 Member For: 17y 1m 16d Posted 17/08/15 01:21 PM Author Share Posted 17/08/15 01:21 PM This is the actual data log of the run at Racewars when the turbo failed.It shows the car going 1st, 2nd, 3rd (boost spike), 4th (turbine explodes!)The purple line is boost using an aftermarket 3 bar map sensor. Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 7m 3d Gender: Male Location: Adelaide Posted 17/08/15 09:18 PM Share Posted 17/08/15 09:18 PM Boost spiking is common on changes, normally auto changes as it loads up the turbo harder on the change That's massive boost for a PW1 stepped cooler especially with the EFR turbo Got any timing logs with the boost and 3bar ? Link to comment Share on other sites More sharing options...
IH8TOADS Silver Donating Members 3,618 Member For: 19y 5m 26d Gender: Male Location: OZ Posted 18/08/15 10:53 PM Share Posted 18/08/15 10:53 PM You shouldn't get spikes with a manual on gear changes. I don't have a BOV and don't get any spikes. My mates with the 9180 just uses the EFR BOV and he has no dramas either. It also looks like the boost spikes prior to the throttle closing. It might be something more sinister so keep poking around. Link to comment Share on other sites More sharing options...
The Kerb Warrior Donating Members 612 Member For: 12y 3m 8d Gender: Male Location: Perth, Western Australia Posted 19/08/15 07:57 AM Share Posted 19/08/15 07:57 AM Don't see many people using the Borg Warner's on their falcons. I know little about them so can't comment much, but it's funny you don't see many of them round if they have better technology/drivability etc than the precision turbo's. Because the last 2 years has been raving on about how precision are more versatile and better than the garretts.... Link to comment Share on other sites More sharing options...
sixman Donating Members 600 Member For: 20y 5m 12d Gender: Male Location: Hills District, NSW Posted 19/08/15 08:13 AM Share Posted 19/08/15 08:13 AM Price is a big factor. The efr range is expensive compared to the precisions.You can get good results with the precisions or garretts so many people think why spend more for marginal benefits? Link to comment Share on other sites More sharing options...
The Kerb Warrior Donating Members 612 Member For: 12y 3m 8d Gender: Male Location: Perth, Western Australia Posted 19/08/15 08:30 AM Share Posted 19/08/15 08:30 AM Price is a big factor. The efr range is expensive compared to the precisions.You can get good results with the precisions or garretts so many people think why spend more for marginal benefits?Fair call mate thanks Link to comment Share on other sites More sharing options...
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