Chevelle 4.8 Turbo
07-04-2012, 12:21 PM
#261
Launching!
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Ok, 68BB, I hear what you and 99vette are saying about starting out n/a, my concern is spending money on parts that I will not need for my turbo build and then having to sell them at a loss... I plan on using a TBSS or ls2 intake with a 92mm TB, with ls2 injectors and rail on my turbo setup. With your own personal experience and knowledge, do you think that will happen as far as headers and tuning for the 2 different setups?? (headers and tuning at a minimun, I know there will be more differences between the 2 setups..)
07-04-2012, 02:06 PM
#262
TECH Apprentice
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Ok, 68BB, I hear what you and 99vette are saying about starting out n/a, my concern is spending money on parts that I will not need for my turbo build and then having to sell them at a loss... I plan on using a TBSS or ls2 intake with a 92mm TB, with ls2 injectors and rail on my turbo setup. With your own personal experience and knowledge, do you think that will happen as far as headers and tuning for the 2 different setups?? (headers and tuning at a minimun, I know there will be more differences between the 2 setups..)
07-04-2012, 08:28 PM
#263
TECH Fanatic
Thread Starter
I bolted the engine in the car and used the stock manifolds, just welded vbands to them, then made temporary pipes to hook right into the exhaust that was on the car for the BBC. So it didn't cost me a dime extra to make the car run n/a. I have the HPT and took out the vats and egr and stuff I didn't need and the engine ran excellent on the stock tune. Remember that engine pushes around a 4000lb full size truck so the stock tune works very well. I used a second set of manifolds to make the turbo manifolds but I already had them, didn't need to buy. Now that they are off the car I will save them for another ls swap down the road. I just made sure some things I bought {i.e. fuel system} was good enough to run the turbo setup. I only wanted to buy that stuff once. It was easier to get the engine in the car and running and work out the bugs and make sure the engine was right before going FI.
07-05-2012, 06:31 PM
#264
Launching!
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I bolted the engine in the car and used the stock manifolds, just welded vbands to them, then made temporary pipes to hook right into the exhaust that was on the car for the BBC. So it didn't cost me a dime extra to make the car run n/a. I have the HPT and took out the vats and egr and stuff I didn't need and the engine ran excellent on the stock tune. Remember that engine pushes around a 4000lb full size truck so the stock tune works very well. I used a second set of manifolds to make the turbo manifolds but I already had them, didn't need to buy. Now that they are off the car I will save them for another ls swap down the road. I just made sure some things I bought {i.e. fuel system} was good enough to run the turbo setup. I only wanted to buy that stuff once. It was easier to get the engine in the car and running and work out the bugs and make sure the engine was right before going FI.
07-16-2012, 11:31 AM
#270
TECH Fanatic
Thread Starter
Here are some pics I took with intercooler installed. Took my LS6 Valve springs out of the other engine, wanna put them in next week. Then Wide Bands and tuning.
3" intercooler behind the grill
Everything installed!!!
Each turbo has a 2.5" outlet that goes through a BOV pipe and then into a 2.5" routing. Then they go to a 3" merge pipe that I made and into the 3" intercooler and then 3" pipe into a 90* to 4" to the MAF and TB.
The merge pipe.
I ran the 3" pipe under the core support as to not cut the car up. I did have to put a small notch on each side of the bumper for the pipes to clear but I figured the bumper is easy to replace if I ever want to.
3" intercooler behind the grill
Everything installed!!!
Each turbo has a 2.5" outlet that goes through a BOV pipe and then into a 2.5" routing. Then they go to a 3" merge pipe that I made and into the 3" intercooler and then 3" pipe into a 90* to 4" to the MAF and TB.
The merge pipe.
I ran the 3" pipe under the core support as to not cut the car up. I did have to put a small notch on each side of the bumper for the pipes to clear but I figured the bumper is easy to replace if I ever want to.
07-16-2012, 12:27 PM
#271
Wait so you have a single inlet intercooler? I need better pics of the plumbing since I have not yet committed to an intercooler and don't care to reinvent the wheel. How much hp does it support? Are you using the stock chevelle radiator and electric fans?
07-16-2012, 04:41 PM
#272
TECH Fanatic
Thread Starter
I don't know how much HP it will support. I didn't think of that, I ordered one that would fit in the car. Yes it is a 3" single inlet and outlet from CXRacing on ebay. I just mad a 3" Y-pipe to hook turbos to. I will try to get some better pics tonight.
07-16-2012, 07:14 PM
#273
Thanks bro, and info on the radiator and fans...please.
