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Q8_TwinTurbo
Well-Known Member
Ryan,
wishing you the best of outcomes. Be safe.
wishing you the best of outcomes. Be safe.
silverarrow
Member
^I'd like to know as well
OP
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LS3Twins
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- Thread starter
- #50
Sorry for the delayed post but I have been out sick. Left NC around 3pm so we could be at the dragstrip when it went hot at 7pm. Traffic out of Charlotte was horrendous and the same in Columbia SC. We didn't get to the track until about 7:30pm but immediately took the car out to go make a baseline pass on low boost. Here are all the results:
1st Pass low boost- Clean Pass no drama and went low 12's
Lined right back up for another run. IAT's looked good and all temps were solid.
2nd Pass mid boost- I did my burnout in drive and during my burnout boost kicked in during 2nd gear and threw it into limp mode
Run was done after this.3rd Pass mid boost- Did my burnout in 1st and kept it a little more tame. She ran 11.30 no issues so I lined back up to put it on high boost. It is now about 9:30pm at this point due to delays from all the spilled fluids from other race cars.
I pulled back up with the high boost setting and waited in the line for about an hour....no movement. At like 10:30 they decided to announce they were closing it and no more passes would be made. This was pretty rough because I started running a fever the night before and worked all day, loaded the car up, drove 4 hours to not be able to make a pass on high boost. I can't tell you how frustrating that was. Now I'm looking for the next available 1/4 mile night within a 2-3 hour distance from Charlotte.
It was a rough day for sure but that's how it goes.
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Were you on pump gas or 100 octane still?Sorry for the delayed post but I have been out sick. Left NC around 3pm so we could be at the dragstrip when it went hot at 7pm. Traffic out of Charlotte was horrendous and the same in Columbia SC. We didn't get to the track until about 7:30pm but immediately took the car out to go make a baseline pass on low boost. Here are all the results:
1st Pass low boost- Clean Pass no drama and went low 12's
Lined right back up for another run. IAT's looked good and all temps were solid.
2nd Pass mid boost- I did my burnout in drive and during my burnout boost kicked in during 2nd gear and threw it into limp mode
3rd Pass mid boost- Did my burnout in 1st and kept it a little more tame. She ran 11.30 no issues so I lined back up to put it on high boost. It is now about 9:30pm at this point due to delays from all the spilled fluids from other race cars.
I pulled back up with the high boost setting and waited in the line for about an hour....no movement. At like 10:30 they decided to announce they were closing it and no more passes would be made. This was pretty rough because I started running a fever the night before and worked all day, loaded the car up, drove 4 hours to not be able to make a pass on high boost. I can't tell you how frustrating that was. Now I'm looking for the next available 1/4 mile night within a 2-3 hour distance from Charlotte.
It was a rough day for sure but that's how it goes.
Just so i understand the parameters of the car and when it's activated, boost in 2nd gear while doing a burnout causes limp mode?
1st pass on low boost - What PSI were you at (if you don't mind me asking)? and when does full boost usually kick in (forgive me i you've already posted this, i'll take a look to reconfirm)?
3rd pass - 11.3 is much better. How was your 60'?
Regarding the rest of your post: Get some rest, get better (first priority). I can't express my appreciation enough about you paving the way for the community. I'm sure the rest of the members feel the same way. Thank you for sharing! I'm looking forward to round two.
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LS3Twins
Well-Known Member
- Thread starter
- #52
- I was still on 100 octane but have a 93 octane tune ready.
- It's more like if the trans sees too high of a load it will just throw the code. I'm imagining that when it changed into 2nd gear the load was higher and the tires were hot so it was just enough to make it throw the code.
- Low boost is like 18psi and full boost is there about 3500rpm.
- I was being a little careful not to spin so my 60ft was only 1.9 but speed was 131mph.
I should prob get a Dragy and do some testing whenever it is convenient. I do have Mooresville dragstrip but it's only 1/8th mile, it's a good place to work on 60ft and setting the car up though. I'll keep everyone posted.
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Nice! I'm really interested in your setup for boost control. Are you running a separate electronic boost controller, or did you find a way to wire up and make compatible a boost control solenoid with the stock computer? This has been a question plaguing me for a while now with people who run external wastegates. I'm also curious to know how the power band feels, i'm sure it's shifted quite a bit from the stock turbo low/mid rage power to mid/high range power. Like the MKIV supras used to be, dyno queens with almost no low to mid range power, but would turn a 11 sec 1/4 mile at 140mph. Your 131mph trap seems to be indicative of that.
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LS3Twins
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- Thread starter
- #54
Right now I am using a Turbosmart Eboost2 and it does a really great job at controlling boost on the external gates. Burger Tuning has sent me a controller that should be able to turn the JB4 into an external gate controller. MHD will be handling the tune and the JB4 will be controlling boost and possibly some port injection
On my setup it comes on strong before 4000rpm and I've had big turbo MK4's and this spools much faster. It's similar to the stock power curve but shifted up about 1000 rpm. It def doesn't feel like a stock turbo car anymore but it also doesn't feel like I couldn't turn it down and go hit the twisties. I've been impressed with the EFR setup so far but haven't had a ton of time to really test it out. So far it is still a great daily and has the potential to run some fast times at the 1/4 mile. I'll be sure to take it up to tail of the dragon sometime soon and see how she does up there.
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whats your power goal and what are you planning on using the car for
- First Name
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the pure turbo can make 600-700whp, but you're going to have to run it pretty high. if you're going to do a LOT of racing i'd recommend bypassing the Pure Turbo stock fram upgrade and going with an aftermarket setup with larger higher flowing turbine and manifold to help keep backpressure down.
