Rank: Member
Groups: Registered
Joined: 15/04/2009(UTC)
Posts: 34
|
Has anyone ever hotted up a 138 with a yella terra head, 186s headers, 186s carby and a hel dizzy? I have wondered this for years. I think it would be very fuel efficient!
cheers
|
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered
Joined: 1/03/2005(UTC)
Posts: 6,058
Thanks: 1 times
Was thanked: 203 time(s) in 184 post(s)
|
Most people 'hot up' cars with performance gains in mind, very few hot up for economy.
Having said that, the combo that you've listed would be quite economical except for the carby. I would opt for the large single barrel Bendix-Stromberg off an HQ 202. More than enough flow for a 138 & easier & simpler to tune than a WW.
Dr Terry |
If at first you don't succeed, just call it Version 1.0 |
|
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC)
Posts: 14,717
Thanks: 1 times
Was thanked: 512 time(s) in 488 post(s)
|
If you look at old Wheels, Modern Motor and Motor Manual road tests from 1972 era (Norm Darwin has the figures in his book) the 138 manual was good for about 23MPG but the 161 trimatic got 24MPG and the 173 trimatic got 22MPG, so my guess is you'd be better off with a 161! I reckon if you got hold of a VK EFI 3.3 engine in good condition and rather than muck around with performance stuff just convert it to a VN Delco ECU you'd easily outdo those economy figures, and have carbied 253 power and torque. |
_______________________________________________________
If we all had the same (good) taste, who would buy all the Fords? |
|
|
|
|
|
Rank: Veteran
Groups: Registered
Joined: 26/02/2009(UTC)
Posts: 1,641
Thanks: 16 times
Was thanked: 27 time(s) in 25 post(s)
|
I think most people just tossed a bigger engine in, as putting a bigger cam heads etc would be just a wast of money.
If you were to do as so, you would not go as big with the valves as in a YT head.
My brother had a gem recon 161 HR with twin carbs and extractors and she went ok loved to rev more than a 186 and smoother at that.
The 138 for fuel forget it.
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 7/05/2007(UTC)
Posts: 300
Thanks: 2 times
Was thanked: 2 time(s) in 2 post(s)
|
I had a 138 3 on the tree in 1973,swapped to 192, yellow terra, 25/65 solid cam,extractors, triple 1 3/4 su's,lightened flywheel & Datsun 1600 gearbox. Was a little bit quicker than the 138.
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 28/04/2012(UTC)
Posts: 420
Thanks: 3 times
Was thanked: 10 time(s) in 9 post(s)
|
A workmates had a FC ute with a warm 138 red motor for years. 180 holley, extractors, higher compression, balanced etc. Goes ok, surprisingly free revving and sweet sounding little motor but not a match in performance of a similarly tuned larger cubed red motor. His reasoning for using the 138 was, he said, is not needing a engineers certificate for the engine swap as it was the same cubic capacity as the old grey motor. |
j.williams |
|
|
|
|
|
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.
