New build for 2015
I was going to initially do E85, but the station near me quit carrying it. Now there is only one left in Portland 
I'm trying to warm up to the idea of getting a couple drums and keep them topped off in the garage, but at the same time, not happy about keeping that much under the roof and taking up floor space.
My commute to work is 22 miles each way, so it can make it a pain to manage the fuel and continue to put miles on the car. Aside from sloooow spooling turbos, the car is real easy and fun to drive.
I'm trying to warm up to the idea of getting a couple drums and keep them topped off in the garage, but at the same time, not happy about keeping that much under the roof and taking up floor space.
My commute to work is 22 miles each way, so it can make it a pain to manage the fuel and continue to put miles on the car. Aside from sloooow spooling turbos, the car is real easy and fun to drive.
I didn't realize you were driving it to work! That is so badass...
I drive a company truck that they let me take home so driving to work is not a option.
Maybe you should think about a separate 5 gallon fuel cell for the track?
There has to be something that can be done about the slow spooling!
Are you sure you have the best cam for those turbos?
I drive a company truck that they let me take home so driving to work is not a option.
Maybe you should think about a separate 5 gallon fuel cell for the track?
There has to be something that can be done about the slow spooling!
Are you sure you have the best cam for those turbos?
The cam can certainly be a factor. I didn't step up and do a custom grind and purchased one off the forums. Looking back, I should have just started out with what was in it.
In my other car when I had twins on it, I did only have a .68 exhaust housing, and those things came on like a light switch at 3000. They don't make them anymore, but those were Master Power 70mm.
My GT4788 I switched to was the same way, it was stupid by 3500.
In that combo I did have Cam motion do a custom grind for the combo.
I'm hoping bringing launch boost up to 5lbs will help how quickly they get to max boost. Putting Co2 to the gates made a huge difference on my other car, so I'm planning on that making a difference as well.
In my other car when I had twins on it, I did only have a .68 exhaust housing, and those things came on like a light switch at 3000. They don't make them anymore, but those were Master Power 70mm.
My GT4788 I switched to was the same way, it was stupid by 3500.
In that combo I did have Cam motion do a custom grind for the combo.
I'm hoping bringing launch boost up to 5lbs will help how quickly they get to max boost. Putting Co2 to the gates made a huge difference on my other car, so I'm planning on that making a difference as well.
I have read that compression makes a big difference with spool time also. 9:1 vs 10:1 is a big difference...
And I'm sure you are aware there has been lots of discussion on what size the primary should be feeding the turbo if the primaries are too large that will make it spool slow as well.
And I'm sure you are aware there has been lots of discussion on what size the primary should be feeding the turbo if the primaries are too large that will make it spool slow as well.
I built a 408 for the car and just got it running a week ago. I also ditched the borg warner turbos as they were lazy. I went with turbonetics hurricane series turbos, 6665. Swapped about the cam that Tick Performance spec'd for me.
Saturday was first night with the new combo. First pass I foot brake my street tune to see if I'd run a license pass number with it. Basically 15deg timing, 10lbs boost and 11.3 A/F. Car didn't hook in 1st or 2nd, still ran 10.65 @ 132
2nd pass I turned it up to 19lbs, Trans brake to 3000 and 1.8lb boost leave, didn't get full throttle until 2nd, car went 1.62 60' 9.74 @ 145
Was not happy with the mph at the boost. Add 2 more lbs and made another pass and it only picked up 1mph, which tells me I have a problem. So I'm going to rework the exhaust to relieve some back pressure and give it one more shot. If it doesn't run a number, I'm going to pull these turbos and go a different route. I also have a problem with high IAT and finishing my pass at 210-215 degrees. Which was actually pulling timing out, but I don't think that's killing all the mph.
I'm looking pretty hard at the Gen 2 Precision 6466's, or worst case going to a single GT4788 like I had on my old car.
One thing I have to keep reminding myself is my suspension is setup for pro touring, so I don't think my ET's will ever be killer.
Fun part is, I drove the car 25 freeway miles to work on Saturday, drove it another 8 miles to the track, and cruised home. Not that it's special for a turbo LS car these days, but I don't baby it.
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Verdad Gallardo Lost the short block about 6 weeks ago. Low oil pressure took out rod and main bearings, main caps, and crank.
I built a 408 for the car and just got it running a week ago. I also ditched the borg warner turbos as they were lazy. I went with turbonetics hurricane series turbos, 6665. Swapped about the cam that Tick Performance spec'd for me.
Saturday was first night with the new combo. First pass I foot brake my street tune to see if I'd run a license pass number with it. Basically 15deg timing, 10lbs boost and 11.3 A/F. Car didn't hook in 1st or 2nd, still ran 10.65 @ 132
2nd pass I turned it up to 19lbs, Trans brake to 3000 and 1.8lb boost leave, didn't get full throttle until 2nd, car went 1.62 60' 9.74 @ 145
Was not happy with the mph at the boost. Add 2 more lbs and made another pass and it only picked up 1mph, which tells me I have a problem. So I'm going to rework the exhaust to relieve some back pressure and give it one more shot. If it doesn't run a number, I'm going to pull these turbos and go a different route. I also have a problem with high IAT and finishing my pass at 210-215 degrees. Which was actually pulling timing out, but I don't think that's killing all the mph.
I'm looking pretty hard at the Gen 2 Precision 6466's, or worst case going to a single GT4788 like I had on my old car.
One thing I have to keep reminding myself is my suspension is setup for pro touring, so I don't think my ET's will ever be killer.
Fun part is, I drove the car 25 freeway miles to work on Saturday, drove it another 8 miles to the track, and cruised home. Not that it's special for a turbo LS car these days, but I don't baby it.
I built a 408 for the car and just got it running a week ago. I also ditched the borg warner turbos as they were lazy. I went with turbonetics hurricane series turbos, 6665. Swapped about the cam that Tick Performance spec'd for me.
Saturday was first night with the new combo. First pass I foot brake my street tune to see if I'd run a license pass number with it. Basically 15deg timing, 10lbs boost and 11.3 A/F. Car didn't hook in 1st or 2nd, still ran 10.65 @ 132
2nd pass I turned it up to 19lbs, Trans brake to 3000 and 1.8lb boost leave, didn't get full throttle until 2nd, car went 1.62 60' 9.74 @ 145
Was not happy with the mph at the boost. Add 2 more lbs and made another pass and it only picked up 1mph, which tells me I have a problem. So I'm going to rework the exhaust to relieve some back pressure and give it one more shot. If it doesn't run a number, I'm going to pull these turbos and go a different route. I also have a problem with high IAT and finishing my pass at 210-215 degrees. Which was actually pulling timing out, but I don't think that's killing all the mph.
I'm looking pretty hard at the Gen 2 Precision 6466's, or worst case going to a single GT4788 like I had on my old car.
One thing I have to keep reminding myself is my suspension is setup for pro touring, so I don't think my ET's will ever be killer.
Fun part is, I drove the car 25 freeway miles to work on Saturday, drove it another 8 miles to the track, and cruised home. Not that it's special for a turbo LS car these days, but I don't baby it.
I finally got running a few weeks ago and have been making a lot of 12 psi hits on the street with nothing but ambient temperature drinking water ....
I never see the IAT's go above 120°
so just think what will happen when I start throwing Ice in at the track....
Most guys I read about throwing in a 10 pound bag of ice and they are below 100° at the end of the run!
I need to text you again sometime soon, however you should come down to DTP race wars October 3 !!!Google it!
No rules private airstrip you can take passengers down the track with you!
This was a fun tread to read. Beautiful car and a stout set up for sure.
Love the fact that you run it on the street like you do.
For that reason, and nothing else, I think you should stay Air to Air.
While you can not beat air to water, (and an ice bucket), it does take away from the fun when you have to pull over and fill up.
Your IATs seem very high. Which sensor are you using? could it be heat soak on the sensor?
Also, have you measured pressure before and after the intercooler?
With all your issues, I think you have too small of an intercooler for the CFMs you are moving.
While you work on the exhaust set up, check the intake side as well.
I always feel that more than 1.5 pounds is unacceptable.
How is the airflow across the cooler? is it sufficient?
Love the fact that you run it on the street like you do.
For that reason, and nothing else, I think you should stay Air to Air.
While you can not beat air to water, (and an ice bucket), it does take away from the fun when you have to pull over and fill up.
Your IATs seem very high. Which sensor are you using? could it be heat soak on the sensor?
Also, have you measured pressure before and after the intercooler?
With all your issues, I think you have too small of an intercooler for the CFMs you are moving.
While you work on the exhaust set up, check the intake side as well.
I always feel that more than 1.5 pounds is unacceptable.
How is the airflow across the cooler? is it sufficient?
You hit on other important key points.
Air to Air will always be on this car because it is driven.
The intercooler is on the list as its just as important as the rest of the package, and it's not the best that can be in there. Cheap no name ebay cooler. So it's not a big surprise the temps are what they are, I was just hoping it would work as is.
I might be able to get a 4" core in there, but no more. Height is the 2nd issue as I can't go big on height either. Obviously all these things are affecting efficiency. I have not check before pressure. I could probably do this on the compressor housing. That sound right?
I don't remember which brand of sensor it is, but I'll look at my logs again to see begging temp for heat soak.
The intercooler build and fit is probably one of the only items I'd love to be able to drop off the car and have someone do it right for suze, fit, and performance.
Water/meth is a potential on the list, and E85 is at the bottom due to availability.
Decisions decisions.
Thank you for the input.
Corey
Air to Air will always be on this car because it is driven.
The intercooler is on the list as its just as important as the rest of the package, and it's not the best that can be in there. Cheap no name ebay cooler. So it's not a big surprise the temps are what they are, I was just hoping it would work as is.
I might be able to get a 4" core in there, but no more. Height is the 2nd issue as I can't go big on height either. Obviously all these things are affecting efficiency. I have not check before pressure. I could probably do this on the compressor housing. That sound right?
I don't remember which brand of sensor it is, but I'll look at my logs again to see begging temp for heat soak.
The intercooler build and fit is probably one of the only items I'd love to be able to drop off the car and have someone do it right for suze, fit, and performance.
Water/meth is a potential on the list, and E85 is at the bottom due to availability.
Decisions decisions.
Thank you for the input.
Corey
Nothing new. I've been working on trying to sell my Vette and toying around with some other ideas, which could include selling my 408 twin setup.
I was working on making some adjustments yesterday, and I can only get one upper control arm to loosen up. I have the Edelbrock upper adjustables, so I was trying to change my pinion angle as I discovered, it's -7 degrees.
I played around with one side, and the car is much worse now.
That said, going from a soft roller in 2nd, I'm seeing very little front end lift. As I figured, what I put on it for suspension just isn't going to work. If I want this car to work, I need to swap everything out. I was too focused on trying to make it a dual purpose car.
I really wanted to go racing with you guys on Saturday, but I never got around to adding the sheet metal in the trunk to block off the interior. Needed since I put a fuel cell in the trunk. It wont pass tech at Woodburn. Along with no head rest either.
The 408 is done with a new gen4 block, Lunati crank, Eagle rods with 2000 bolts, Wiseco -15cc dish pistons and their rings. I did ARP main studs as well and file fit the rings to .025 and .029. I swapped out the cam and added a Tick performance spec'd cam, new double roller chain (what a bitch), new lifters, Decked the block, line hone etc. Decked the heads, replaced the guides and did the valves and seats. I was very impressed with the price on the Lunati crank and it balanced without needing any Malory.
You get that 6.0L up and running yet?
Corey
I was working on making some adjustments yesterday, and I can only get one upper control arm to loosen up. I have the Edelbrock upper adjustables, so I was trying to change my pinion angle as I discovered, it's -7 degrees.
I played around with one side, and the car is much worse now.
That said, going from a soft roller in 2nd, I'm seeing very little front end lift. As I figured, what I put on it for suspension just isn't going to work. If I want this car to work, I need to swap everything out. I was too focused on trying to make it a dual purpose car.
I really wanted to go racing with you guys on Saturday, but I never got around to adding the sheet metal in the trunk to block off the interior. Needed since I put a fuel cell in the trunk. It wont pass tech at Woodburn. Along with no head rest either.
The 408 is done with a new gen4 block, Lunati crank, Eagle rods with 2000 bolts, Wiseco -15cc dish pistons and their rings. I did ARP main studs as well and file fit the rings to .025 and .029. I swapped out the cam and added a Tick performance spec'd cam, new double roller chain (what a bitch), new lifters, Decked the block, line hone etc. Decked the heads, replaced the guides and did the valves and seats. I was very impressed with the price on the Lunati crank and it balanced without needing any Malory.
You get that 6.0L up and running yet?
Corey
lol unfortunately no not yet, I was in the process of looking for heads for it, i was searching for a set of ls6 and got sidetracked after finding a complete but disassembled ls6. I ended up buying that, and had been working on getting that going. It was a real low mile so would be able to put together with new head gaskets and swap in a cam and pretty much call it good, however recently have been back on wanting to build the 6.0. I am really wanting to build a 408 (or slightly smaller if bores allow). I just need to stay on track and get one of them done and start working on trying to get them in the jeep...at the rate i go its going to be a while lol. That would have been awesome to get to see your car at woodburn. Going to the track was fun, but reconfirmed how bad i want to an ls motor swapped in it. I need to figure out how big of a stall i want to go with for it too. I also need to figure out my fuel system, i have a walbro 255 in line i was planning on running and was going to go the corvette filter regulator but now starting to second guess and wondering if i should do filter and regulator separate.