Hank,
Will I be more restricted by my undersized setup, or by the smallish turbo?
I was chatting with a good friend today about my plans for my build and he offered me a good turbo from a 6.5L turbo deezul chevy truck. Do you know off hand if:
A) This would be a more appropriately sized turbo, or would I have gone too far in the opposite direction?
2) If it WOULD be better - would it pop on there like a lego, or would I have to flex my fabrication muscles?
Sorry to be a PITA. It's just a little overwhelming. I feel like I'm searching my butt of, reading myself to a coma, and learning very little actual info about how to best install and run MY setup. Dang near every thread that appears with the keyword "turbo" is every individual posting from all 14 pages of the snowman saga - and a handful of other builds that are either different than mine mechanically or have expired pictures - making it time wasted instead of time invested.
Is there a successful build thread using my base parts that has pictures or links that work? I hate to keep asking how to get from A to B if there's already a map to follow.
Again, Thank you VERY much for your help.
John
The
turbo you have is really small for your size engine.
It will work & it will boost fast, but it's a big restriction.
I believe the 6.5 turbo will do better, but it is not a direct bolt on & will require to flex a lot of your skills.
Also,it is not a draw through turbo,
no carbon seal. Made to run fuel & air through the compressor wheel.I was trying to find the thread on the Turbo buick forums where this guy was comparing the stock GN turbo, the 3.8 Buick turbo & the 1981 Turbo Trans Am turbo where he swapped out all of the better parts to make a better hybrid stock type turbo, the thread is called
not all turbos are created equal. I could not find it (for now) but I have posted it here a few times.
I suggested to the same guy Charlie as to not just limit the compressor size to a stock Turbo Trans Am & to get a larger aftermarket compressor machined to fit the stock compressor cover as I did to my Syclones turbo.
Stock is on the right side of pic.
If you can locate a 1981 Turbo Trans Am turbo, it will be a larger turbo to better suit the size of your engine.
It is close to a direct bolt on turbo to your 3.8 turbo.
Example:
http://www.ebay.com/itm/81-PONTIAC-301-T...b84fd51&vxp=mtrNot a good price by any means, just some pics for you to see a TTA turbo.
Here is the car that came with the turbo better suited for you.
http://www.taspecialties.com/sold/ta4161.htmhttp://www.ridelust.com/turbo-chicken-1981-pontiac-trans-am/MBHD
The TTA had a 301 CI engine.
