Lot of power on SD22

SD diesels were widely available in the US in the 1981-86 Datsun/Nissan 720 pickups, and in Canada through '87 in the D21 pickup.

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elboss
Posts: 59
Joined: 9 years ago
Location: Portugal

Lot of power on SD22

#1

Post by elboss »

I hope you like ;)
Any questions go ahead 8)

Specs: engine full stock / turbo Gt2056vk / Custom exhaust / intake manifold worked with no vaccum port / modified injection pump / eletric pré fuel pump / 320d intercooler

2bar of boost

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Last edited by elboss 8 years ago, edited 1 time in total.
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keller
Posts: 4
Joined: 9 years ago

#2

Post by keller »

elboss wrote:intake manifold worked with no vaccum port/ modified injection pump


I would like to hear all that I can about your fueling.


The turbo and hardware I can figure out. But on the fuel I am stumped. I see you are still running the throttle body?
elboss
Posts: 59
Joined: 9 years ago
Location: Portugal

#3

Post by elboss »

I remove all things inside of throttle body, just stay the outside body... just to grab the intake pipe...

About fuel pump, 1º i remove the mechanical fuel pump a and add a BMW 4 bar electric fuel pump.... it self, gives more power ;)

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Then i remove the throttle diafragm inside pump, and make a custom throttle system, to accelerate directly form the throttle pedal... i can take a picture...

Then i add lot of debit of injection to have more exhaust pressure...

the only problem is the compression ratio, its blow with heat gastket, so now i buy a Sd23 head gasket, is more thick and its full steel...

brand new stock gasket

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and new one

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sorry my bad english 8)
elboss
Posts: 59
Joined: 9 years ago
Location: Portugal

#4

Post by elboss »

michael3006
Posts: 26
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Location: Queensland Australia

#5

Post by michael3006 »

Now in that I would surely loose my licence.
Very impressive.
elboss
Posts: 59
Joined: 9 years ago
Location: Portugal

#6

Post by elboss »

Thanks! Today i take a picture from pump!



how she looks :D

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keller
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#7

Post by keller »

elboss wrote:Thanks! Today i take a picture from pump!
yes! please take as many pictures as you can. i am very interested. all of my reading on turning these engine up hallways had problems with running the throttle body. I figured there had to be a way to hook throttle cable directly to the pump.
elboss
Posts: 59
Joined: 9 years ago
Location: Portugal

#8

Post by elboss »

sorry today i forgot to take pictures! i will take all the pictures ;)
elboss
Posts: 59
Joined: 9 years ago
Location: Portugal

#9

Post by elboss »

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elboss
Posts: 59
Joined: 9 years ago
Location: Portugal

#10

Post by elboss »

The photo keller :wink:

I think you understand the project ;)

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keller
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#11

Post by keller »

yes yes. I see you added a lever to reverse the cable from pulling to pushing for fuel. Made your own little bracket for the cable.

Tell me did you gut the diaphragm? Or just leave it in place to keep dirt out. Did you have to add any springs or are the return springs internal?
elboss
Posts: 59
Joined: 9 years ago
Location: Portugal

#12

Post by elboss »

no nothing, i take off every things inside, my objective is take maximum fuel and power, so i need the maximum play from the control rack, because in 100% of play of control rack, i only got idle upper 30% maybe 40% of play from 0%... you know what i mean?
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keller
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#13

Post by keller »

elboss wrote:no nothing, i take off every things inside, my objective is take maximum fuel and power, so i need the maximum play from the control rack, because in 100% of play of control rack, i only got idle upper 30% maybe 40% of play from 0%... you know what i mean?


No you kinda lost me. :lol:
elboss
Posts: 59
Joined: 9 years ago
Location: Portugal

#14

Post by elboss »

ok lol imagine, in 100% travel of the control rack, the pump only start delivery for idle, arround 30%... understand? :wink:


see power... in 4º gear
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elboss
Posts: 59
Joined: 9 years ago
Location: Portugal

#15

Post by elboss »

Next race, 2 September! See the +2Bar boost!

http://youtu.be/1uT5UFzC1bc
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