4.5gen backyard turbo build
05-25-2010, 05:25 PM
#322
so my next project is to drill and tap the intercooler pipe RIGHT after the turbo and install a barbed vac fitting. Since I do not have a spot on the turbo I will use this for the wastegate source instead of tee'ing the bov
05-26-2010, 03:49 PM
#324
Hey, I know your boost level can vary with the weather and temps but I was wondering if this was normal
When I set my boost controller it was about 45-50 degrees outside and today its like 85-90 and I am getting about 3 less psi
I figured 1-2 ok but 3 now I am thinks boost leak, please let me know if this is norm or if I should drive myself crazy searching for a leak
When I set my boost controller it was about 45-50 degrees outside and today its like 85-90 and I am getting about 3 less psi
I figured 1-2 ok but 3 now I am thinks boost leak, please let me know if this is norm or if I should drive myself crazy searching for a leak
05-26-2010, 04:24 PM
#325
Hey, I know your boost level can vary with the weather and temps but I was wondering if this was normal
When I set my boost controller it was about 45-50 degrees outside and today its like 85-90 and I am getting about 3 less psi
I figured 1-2 ok but 3 now I am thinks boost leak, please let me know if this is norm or if I should drive myself crazy searching for a leak
When I set my boost controller it was about 45-50 degrees outside and today its like 85-90 and I am getting about 3 less psi
I figured 1-2 ok but 3 now I am thinks boost leak, please let me know if this is norm or if I should drive myself crazy searching for a leak
05-26-2010, 05:20 PM
#326
Hey, I know your boost level can vary with the weather and temps but I was wondering if this was normal
When I set my boost controller it was about 45-50 degrees outside and today its like 85-90 and I am getting about 3 less psi
I figured 1-2 ok but 3 now I am thinks boost leak, please let me know if this is norm or if I should drive myself crazy searching for a leak
When I set my boost controller it was about 45-50 degrees outside and today its like 85-90 and I am getting about 3 less psi
I figured 1-2 ok but 3 now I am thinks boost leak, please let me know if this is norm or if I should drive myself crazy searching for a leak
it was 90 degress in ny today and i caught full wastegate boost..
05-26-2010, 06:09 PM
#327
So today I was hitting 10psi going to work it was cool then and 8psi going home and it was like 90degrees. So I tapped the IC pipe right after the turbo and ran my boost gauge and waste gate there. I did not make any other changes and was able build 1-2psi reving it in neutral. Then I took the car out for a pull and hit 10+psi in 1st, 20psi in 2nd and pin'd the needle in 3rd at like 25psi. So I made and few more passes to confirmed this was correct and turned the boost down to around 12.5psi.
So now it looks like I'll be playing pin the tail on the boost leak ***, good thing is when fix it my car will be alot faster. Any suggestions for finding boost leaks, I was planning to hit up home depot get a pvc pipe and cap drill a hole in cap and stick and tire valve in there. Then disconnect the IC pipe to my turbo install the pvc pipe and pressurize the whole system with my air compressor and spray soapy water everywhere and check for bubbles.
So now it looks like I'll be playing pin the tail on the boost leak ***, good thing is when fix it my car will be alot faster. Any suggestions for finding boost leaks, I was planning to hit up home depot get a pvc pipe and cap drill a hole in cap and stick and tire valve in there. Then disconnect the IC pipe to my turbo install the pvc pipe and pressurize the whole system with my air compressor and spray soapy water everywhere and check for bubbles.
Last edited by t6378tp; 05-26-2010 at 06:12 PM.
05-26-2010, 06:14 PM
#328
So today I was hitting 10psi going to work it was cool then and 8psi going home and it was like 90degrees. So I tapped the IC pipe right after the turbo and ran my boost gauge and waste gate there. I did not make any other changes and was able build 1-2psi reving it in neutral. Then I took the car out for a pull and hit 10+psi in 1st, 20psi in 2nd and pin'd the needle in 3rd at like 25psi. So I made and few more passes to confirmed this was correct and turned the boost down to around 12.5psi.
So now it looks like I'll be playing pin the tail on the boost leak ***, good thing is when fix it my car will be alot faster. Any suggestions for finding boost leaks, I was planning to hit up home depot get a pvc pipe and cap drill a hole in cap and stick and tire valve in there. Then disconnect the IC pipe to my turbo install the pvc pipe and pressurize the whole system with my air compressor and spray soapy water everywhere and check for bubbles.
So now it looks like I'll be playing pin the tail on the boost leak ***, good thing is when fix it my car will be alot faster. Any suggestions for finding boost leaks, I was planning to hit up home depot get a pvc pipe and cap drill a hole in cap and stick and tire valve in there. Then disconnect the IC pipe to my turbo install the pvc pipe and pressurize the whole system with my air compressor and spray soapy water everywhere and check for bubbles.
05-27-2010, 06:02 PM
#329
So my local Home Depot sucks BALLZ, they did not have any pvc caps. I am going to try a local hardward store tomorrow and if that does not work my buddy is going to weld a blockoff plate on one end of a 2.5 inch and 3inch exhaust pipe. Then I'll put a tire valve in them and use that.
I really do not want to spend 40bucks for one on ebay
I really do not want to spend 40bucks for one on ebay
05-27-2010, 06:17 PM
#330
So my local Home Depot sucks BALLZ, they did not have any pvc caps. I am going to try a local hardward store tomorrow and if that does not work my buddy is going to weld a blockoff plate on one end of a 2.5 inch and 3inch exhaust pipe. Then I'll put a tire valve in them and use that.
I really do not want to spend 40bucks for one on ebay
I really do not want to spend 40bucks for one on ebay
My Ace Hardware store has PCV end caps, if you have one of those check there.
05-27-2010, 07:45 PM
#331
Thats weird, I got one of them caps that screw on at depot, had a **** load of them. Did you ask for it, or look for yourself? They arent by the long pipes, they have another section that has all the small pieces.
05-28-2010, 07:32 PM
#332
ok so I tested my car and WTF, the whole car is just a boost leak. I had a leak at the coupler coming off the intercooler, which is fixed. I have a leak at the coupler before and after the bov adapter pipe and the welds around the bov flange is leaking like FUKING crazy, I could feel the jet stream of air from the about a foot away stupid ebay item. The couplers will be a easy fix and I am going to reweld the flange. I have another leak between the maf and maf adapter, guess the o-ring is bad. Final the last leak is between the the elbow and pftb adapter plate, stupid oem gasket, rtv ftw
btw I tested everything at 20psi, figured I'd test it at a higher psi than I plan to run daily, plus you never know maybe I'll try 12-14psi with race fuel at maxus
btw I tested everything at 20psi, figured I'd test it at a higher psi than I plan to run daily, plus you never know maybe I'll try 12-14psi with race fuel at maxus
05-29-2010, 09:08 AM
#334
ok so I tested my car and WTF, the whole car is just a boost leak. I had a leak at the coupler coming off the intercooler, which is fixed. I have a leak at the coupler before and after the bov adapter pipe and the welds around the bov flange is leaking like FUKING crazy, I could feel the jet stream of air from the about a foot away stupid ebay item. The couplers will be a easy fix and I am going to reweld the flange. I have another leak between the maf and maf adapter, guess the o-ring is bad. Final the last leak is between the the elbow and pftb adapter plate, stupid oem gasket, rtv ftw
btw I tested everything at 20psi, figured I'd test it at a higher psi than I plan to run daily, plus you never know maybe I'll try 12-14psi with race fuel at maxus
btw I tested everything at 20psi, figured I'd test it at a higher psi than I plan to run daily, plus you never know maybe I'll try 12-14psi with race fuel at maxus
05-29-2010, 02:12 PM
#335
Thats what happened to me when i first pressure tested my system. Question, did you cap off both the TB pipe and the Turbo pipe? or only the pipe going into turbo? I ask because its not good to pressurize the engine with such high pressure. (so iv been told and read).
06-01-2010, 06:51 PM
#336
ok so I called this local fab shop that can tig weld ic piping, I made a new 3inch bov adapter pipe and will have them weld it directly to my maf adapter. I figured this will elimate one coupler and place to leak.
Here is a pic and I am getting this welded tomorrow and will take a pic of the finished work. I may go back when I get paid and have the rest of my ic piping welded so the only couplers I will have is to the intercooler, tb and maf
Here is a pic and I am getting this welded tomorrow and will take a pic of the finished work. I may go back when I get paid and have the rest of my ic piping welded so the only couplers I will have is to the intercooler, tb and maf
06-01-2010, 07:23 PM
#338
I also kicking around the idea of doing a full ecu/6-speed swap on a semi built motor and run uprev for tuning
Last edited by t6378tp; 06-01-2010 at 07:29 PM.
06-03-2010, 06:25 PM
#343
ok, so I got this fab shop to weld a bov flange to a 3inch IC pipe then weld the bov pipe to the maf adapter to elimate a coupler. I will go back soon to get 1 more ic pipe weld to elimate one more coupler than I should be done with getting the ic pipes welded.
Today I removed the tb and applied rtv to the elbow, tb and tb adapter plate and the maf adapter. Installed everything and tested again and the tb, maf and bov pipe all passed the test. But I still heard a leak coming from the boost leak tester so I sprayed in with soapy water to make sure and yep bubbles then the pvc cap popped out, LOL
I guess this is a good sign that the system had know where else to leak so I buttoned everything open and took the car for a spin. It felt better and alittle faster down low, so either tomorrow or this weekend I am going to cap the turbo inlet and leak test the system as a whole for leaks and move the boost gauge to the intake to see where I am at
wish me luck
Today I removed the tb and applied rtv to the elbow, tb and tb adapter plate and the maf adapter. Installed everything and tested again and the tb, maf and bov pipe all passed the test. But I still heard a leak coming from the boost leak tester so I sprayed in with soapy water to make sure and yep bubbles then the pvc cap popped out, LOL
I guess this is a good sign that the system had know where else to leak so I buttoned everything open and took the car for a spin. It felt better and alittle faster down low, so either tomorrow or this weekend I am going to cap the turbo inlet and leak test the system as a whole for leaks and move the boost gauge to the intake to see where I am at
wish me luck
Last edited by t6378tp; 06-04-2010 at 03:21 AM.
06-05-2010, 07:42 AM
#345
So, today I used a 4-2.5inch coupler and leak tested the intake system at the turbo. I like this test better cause the system is the way you would drive the car. So now all of my old leaks are gone but one I have a 2.5-3inch coupler that leaked alittle so I tighten the t-bolts but now one of the bolts on my iacv adapter plate is leaking, wtf. So I am going to remove the bolt and put some rtv on it.
Now for the good news at the 18psi instead of 20psi at the air compressor the boost gauge shows twice as much boost than before. I am going to head back to the shop and get a ic pipe welded another bead rolled and maybe remove the iacv completely but not sure yet about the iacv. Going to take the car for a test drive and reset the boost controller.
BOOST LEAKS SUCKS
Now for the good news at the 18psi instead of 20psi at the air compressor the boost gauge shows twice as much boost than before. I am going to head back to the shop and get a ic pipe welded another bead rolled and maybe remove the iacv completely but not sure yet about the iacv. Going to take the car for a test drive and reset the boost controller.
BOOST LEAKS SUCKS
Last edited by t6378tp; 06-05-2010 at 07:47 AM.
06-05-2010, 02:27 PM
#346
So, today I used a 4-2.5inch coupler and leak tested the intake system at the turbo. I like this test better cause the system is the way you would drive the car. So now all of my old leaks are gone but one I have a 2.5-3inch coupler that leaked alittle so I tighten the t-bolts but now one of the bolts on my iacv adapter plate is leaking, wtf. So I am going to remove the bolt and put some rtv on it.
Now for the good news at the 18psi instead of 20psi at the air compressor the boost gauge shows twice as much boost than before. I am going to head back to the shop and get a ic pipe welded another bead rolled and maybe remove the iacv completely but not sure yet about the iacv. Going to take the car for a test drive and reset the boost controller.
BOOST LEAKS SUCKS
Now for the good news at the 18psi instead of 20psi at the air compressor the boost gauge shows twice as much boost than before. I am going to head back to the shop and get a ic pipe welded another bead rolled and maybe remove the iacv completely but not sure yet about the iacv. Going to take the car for a test drive and reset the boost controller.
BOOST LEAKS SUCKS
06-05-2010, 06:22 PM
#348
06-05-2010, 09:32 PM
#349
The tech and comp cams and the engine builder est the motor at 400-450 n/a and 650 on spray. The engine for good for a 7500rpms but I set the box for 6500 since I will be going thru the traps at around 6000 due to the gears in the rear.
I have 3.73 in there now and will swap them for some 4.11 or higher next year
I have 3.73 in there now and will swap them for some 4.11 or higher next year
Last edited by t6378tp; 06-05-2010 at 09:37 PM.
06-07-2010, 06:48 PM
#350
ok, so I gave the afpr, wg and bov all their own source. And installed a check valve inline to the bov so it doesn't see boost.
This weekend I am going heat wrap the second half of my feedpipe, cut louvers in my hood but only on the drivers side to help with under the hood temps. Then the following week get another ic welded to elimate yet another coupler and possible leak.
This weekend I am going heat wrap the second half of my feedpipe, cut louvers in my hood but only on the drivers side to help with under the hood temps. Then the following week get another ic welded to elimate yet another coupler and possible leak.
Last edited by t6378tp; 06-07-2010 at 07:02 PM.
06-08-2010, 05:52 AM
#351
So, I am driving to work and was getting surge. I pulled over popped the hood rev'd the car, made sure the check valve was in the correct direction and it wasn't working. Removed the check and everything worked fine, guess the valve was too much of a restriction
06-08-2010, 02:30 PM
#353
06-12-2010, 12:52 PM
#354
So we've had a few 90 degree days in philly and eventhou the temp gauge has not gone pass the middle point on the factory gauge the underhood temps are crazy.
I popped my hood the other day and almost had a stroke
So today I ordered a turbo blanket to help out and will finish wrapping my feedpipe
I popped my hood the other day and almost had a stroke
So today I ordered a turbo blanket to help out and will finish wrapping my feedpipe
06-16-2010, 06:31 PM
#356
Blanket came in today and works great, I started the car and was able to put my hand on the turbo and leave it there will reving it.
I am going to make a few pulls at full boost and see how it feels but I really don't see the need to cut a vent in the hood now
I am going to make a few pulls at full boost and see how it feels but I really don't see the need to cut a vent in the hood now
07-17-2010, 08:31 AM
#358
Update, I had another intercooler pipe welded and will have a local fab shop make a 2.5 to 3inch reducer out of ic piping to replace a coupler and weld it together. Then I am done with the intercooler piping.
Next whenever my exhaust sells I am going to make a 3inch exhaust and route the waste dump back into it. I am currently running a open dump, and want the 3inch exhaust quieter than my 2.5inch exhaust.
Final hit the track in full trim and street tires, btw if anyone is interested I might make another 3inch exhaust when I make mine
Next whenever my exhaust sells I am going to make a 3inch exhaust and route the waste dump back into it. I am currently running a open dump, and want the 3inch exhaust quieter than my 2.5inch exhaust.
Final hit the track in full trim and street tires, btw if anyone is interested I might make another 3inch exhaust when I make mine
Last edited by t6378tp; 07-17-2010 at 08:33 AM.
07-29-2010, 07:37 PM
#359
Ok so the exhaust is sold and bought all the parts I'll need to make the exhaust. I've had the parts for about a week but it's been so hot that I am just getting around to cuting the pipes and mocking it up on the floor
Not much to see yet but here are some pic's, I am going out of town this weekend but will try to have this finished by next weekend
Not much to see yet but here are some pic's, I am going out of town this weekend but will try to have this finished by next weekend