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I was thinking more along the lines of fouling plugs, carbon build up at low boost/daily speeds - my very tame 991 usually only does daily/city type driving, but last week when it went north, the first couple hundred kms mileage was pretty rotten and there was hesitation - a few solid 'Italian Tune Up' applications of the throttle cleaned it up, improved the mileage, sounded better - in his case, a healthy plug cleaning will need a lot of road...
The car will be on full e85 at all times and I have different maps for my needs. I'll probably leave it at the 1000whp map once it's dialed in, that should be good enough for fun on the streets whenever I take the car out.
I don't think fouling plugs will be an issue, no carbon build up either as it has port injection so it will keep those valves clean
LOL, I just some empty cans left over from dyno runs, I have a ton at BMS that we use for that same reason
Yes and no, as the turbo boost gets higher it will fall into efficiency range, then slowly back out of it. I'd say about 36-40 psi to max out these turbos, but we won't really know until they start to turn it up.
Good thing I have shaft speed sensors and a compressor map to go off My ultimate goal is 1200whp, hopefully that's doable.
Haha, thanks Mike! Maybe I'll get the car back in time so we can do some friendly runs
-Payam
Originally Posted by BMS
The car will be on full e85 at all times and I have different maps for my needs. I'll probably leave it at the 1000whp map once it's dialed in, that should be good enough for fun on the streets whenever I take the car out. I don't think fouling plugs will be an issue, no carbon build up either as it has port injection so it will keep those valves clean
Welp, one of the turbos blew yesterday during final tuning and testing while trying to slowly turn it up. It blew up at around 28-30 psi. Evospec ordered a new CHRA and will try to get it in tomorrow to finalize everything for me. So dang close, I was supposed to pick up the car tomorrow lol. Oh well, it's the name of the game.
That's a **** off, hopefully didn't blow towards the inside of the engine...
Nice numbers too.
I think the CHRA just seized up or something, he said no damage to compressor or turbine housings so a simple CHRA swap will do it. I'm just happy to see the power curve, it looks really damn good with a nice powerband from 5k to redline. Plus DA was about 5k yesterday and 115* in AZ. Once I get the car back to Cali I'll test it on our dynojet with the cooler weather and better DA. I think 1200whp is going to be the max this can make, if that.
That sucks. What power was it pushing at 30psi? I'm surprised it blew up at 30psi, did a bearing fail, like mine or? I have a friend here with another ES1100 kit that has G30-770 and he's pushing more than 30 psi on E85 and his build has been trouble free.
Ball bearing Garrett G30-770, their newest line of turbos heard to be one of the best on the market right now. That's why I offered to try it, if not I would have gone with Precision turbos.
Ball bearing Garrett G30-770, their newest line of turbos heard to be one of the best on the market right now. That's why I offered to try it, if not I would have gone with Precision turbos.
-Payam
You bought an extremely high quality turbo. I’ve bought 4 Garrett’s and 4 Precision’s without issues. Probably just a bad luck deal.
Only mod I had to do was to run a restrictor on the oil feed lines to keep from pushing oil past the seals and into the turbines.
You bought an extremely high quality turbo. I’ve bought 4 Garrett’s and 4 Precision’s without issues. Probably just a bad luck deal.
Only mod I had to do was to run a restrictor on the oil feed lines to keep from pushing oil past the seals and into the turbines.
Black Cat is off your back now.
I agree, Garrett is top quality IMO. They had some smoking issues first day of tuning and then added the restrictors later which could have some reason to why it failed.
Oh well, tuning is basically done at this point from what Wayne said and the logs are looking healthy. Once they swap that CHRA and do a couple more pulls on map 4 then 5 it's ready to get picked up.
Welp, one of the turbos blew yesterday during final tuning and testing while trying to slowly turn it up. It blew up at around 28-30 psi. Evospec ordered a new CHRA and will try to get it in tomorrow to finalize everything for me. So dang close, I was supposed to pick up the car tomorrow lol. Oh well, it's the name of the game.
-Payam
The number on the bottom of the Graph is boost in KPA? What fuel are you getting these numbers?
I thought with G30-770 the car should be making upwards of 1.200 whp at 30 psi, if I am not mistaken.
The number on the bottom of the Graph is boost in KPA? What fuel are you getting these numbers?
I thought with G30-770 the car should be making upwards of 1.200 whp at 30 psi, if I am not mistaken.
I’m guessing that would depend on a lot of things - engine capacity, fuel, timing etc. 2 G30-770s are making around 1100whp on a 4L build on E85 at 2bar (29-30psi)
The number on the bottom of the Graph is boost in KPA? What fuel are you getting these numbers?
I thought with G30-770 the car should be making upwards of 1.200 whp at 30 psi, if I am not mistaken.
No, it's some sort of difference calculator to show the difference in power between the graphs. I saw a log of that run and it was at about 28psi. Not sure how aggressive timing is, but they did MBT testing so I assume it's the most it's got. I've seen about 32psi to hit 1kwhp with similar sized turbos on this engine. I'm on full E85.
Originally Posted by Nikolov
I’m guessing that would depend on a lot of things - engine capacity, fuel, timing etc. 2 G30-770s are making around 1100whp on a 4L build on E85 at 2bar (29-30psi)
I think it will require 36psi to get about 1100whp with these turbos. Which is on par with some of the stuff I've seen with Sambos XR kits. Keep in mind the ambient temps during these dyno pulls are 115* in Arizona heat. Once I get the car back and dial it in a bit more on the streets and CA cooler weather I will strap it on our in house AWD dynojet to see what it makes
Crossing my fingers that I'll be picking up the car on Saturday.
