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  • 1965 - 1973 Classic Mustangs -General/Talk-
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hey turbo guys, how do you choose a size?

  • Thread starter Thread starter stangman67
  • Start date Start date Jan 17, 2006

stangman67

Member
Feb 8, 2003
294
0
17
connecticut
Jan 17, 2006
#1
  • Jan 17, 2006
  • #1
Since im planning on something cool for my car, i figure ill turbocharge it. Since i play alot in the volvo world, i figure they could be a good choice for a twin setup. The motors are 2.3L, and easily boost 14psi, so i figure 2 would be good at 6-10psi. But for simplicity, how could i choose a single setup. Obviously, a 7.3Lpsd turbo would be too laggy on a 289-302, so what can i do to figure out a good size. Really, im looking for fun acceleration, and not all out drag racing. Thanks.
 
S

steel1212

Active Member
Jun 24, 2004
1,180
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36
Frankfort, Ky
Jan 17, 2006
#2
  • Jan 17, 2006
  • #2
If I'm not mistaken most people use the ones off the old 4 banger mustangs and turbo birds.
 

65ShelbyClone

Founding Member
Sep 9, 2000
4,675
38
119
Antelope Valley, SoCal
Jan 18, 2006
#3
  • Jan 18, 2006
  • #3
It really, REALLY helps if you know how to read a compressor map and do all the calculations needed to figure out the volumetric throughput of your engine.

The TurboCoupe turbos(x2) work quite well. The '84-86(?) turbo 2.3s had a slightly larger Garrett T3 good for about 275-300hp. Get two and you have the start of a cheap turbo setup that can split your block.

For a single, a PT-38 ball bearing turbo from a later Powerstroke should have okay response and still make 400-500hp. A Holset HX35 from a Cummins 5.9L is in the same league. an HX40, 45, or 50 (or 60 ) is when you want to start stepping up. Ideally you buy an off-the-shelf turbo that is properly sized, though. I have a really old KKK big single I was going to use, but it was for a diesel and has a sucky pressure ratio and not enough mass flow for more than 400hp. I also have a little IHI RHB5 VF series I'm going to put on a Briggs & Stratton 10hp. I'm still sorting out the analog EFI, though. Yes, fuel injection.

By the way, a single turbo setup is not necessarily simpler than a twin.
 

stangman67

Member
Feb 8, 2003
294
0
17
connecticut
Jan 18, 2006
#4
  • Jan 18, 2006
  • #4
Is the 99-03 powerstroke turbo a choice, or the older setup with no wastegate. Id rather go small for quick boost, then huge hp numbers.
 

xoxbxfx

Founding Member
May 9, 2001
3,959
0
0
Southlake, TX
Jan 18, 2006
#5
  • Jan 18, 2006
  • #5
If you are doing twins, i would just go with a couplet3's or t4's
 

65ShelbyClone

Founding Member
Sep 9, 2000
4,675
38
119
Antelope Valley, SoCal
Jan 19, 2006
#6
  • Jan 19, 2006
  • #6
stangman67 said:
Is the 99-03 powerstroke turbo a choice, or the older setup with no wastegate. Id rather go small for quick boost, then huge hp numbers.
Click to expand...

I'm pretty sure thats the PT-38. The Holset HX35 is similar, but I dont think it has an integral wastegate. Heck, I dont think the PT-38 does. Check out http://www.turbomustangs.com/ for lots more info.
 

triostang

New Member
Dec 24, 2003
142
0
0
Jan 20, 2006
#7
  • Jan 20, 2006
  • #7
these hotrod magazine articles are very helpfull with turbo's
its in 3 diff parts.

http://hotrod.com/techarticles/engine/113_0312_turbo/
http://hotrod.com/techarticles/engine/113_0401_turb/
http://hotrod.com/techarticles/engine/113_0402_turb/
 
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