go fast cheap build
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Elder User
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hairy i want to go for the torque because the top end the low end seems to be a bit iffy on the big pumped trucks and the stroker top duh like you said, so by trying to get a pump taht will make more low end power the top is covered by the displacement. top end this thing already gets out of its own way pretty good for an old idi. on the highway i can go 45-60 no problems its 15-35 where its a bit gutless and i know that the pump is not designed for the added cubes
88 i seen that he didnt do too bad, but that is also why i am using stock restrictive up pipe denser charger in smaller pipe means quicker spool and some other tricks heat wrap etc.
88 i seen that he didnt do too bad, but that is also why i am using stock restrictive up pipe denser charger in smaller pipe means quicker spool and some other tricks heat wrap etc.
Lead Driver
Joined: Apr 2008
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hairy i want to go for the torque because the top end the low end seems to be a bit iffy on the big pumped trucks and the stroker top duh like you said, so by trying to get a pump taht will make more low end power the top is covered by the displacement. top end this thing already gets out of its own way pretty good for an old idi. on the highway i can go 45-60 no problems its 15-35 where its a bit gutless and i know that the pump is not designed for the added cubes
88 i seen that he didnt do too bad, but that is also why i am using stock restrictive up pipe denser charger in smaller pipe means quicker spool and some other tricks heat wrap etc.
88 i seen that he didnt do too bad, but that is also why i am using stock restrictive up pipe denser charger in smaller pipe means quicker spool and some other tricks heat wrap etc.
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well i got the uppipe and crossover $100 he came up with a psd dp at first and that was not going to work at all. pics coming soon.
as for the cam i picked up a cam from russ when that was all there was for the idi a few years back. so im going to give it a try. worst case is i buy a better cam and that cam will go into a bronco.
Stage 1 cam vs. the TorqueShaft? which cams do you mean here can i get links or whos cam it is?
as for the cam i picked up a cam from russ when that was all there was for the idi a few years back. so im going to give it a try. worst case is i buy a better cam and that cam will go into a bronco.
Stage 1 cam vs. the TorqueShaft? which cams do you mean here can i get links or whos cam it is?
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ok got it now thanks i did not know russ called his torque shaft. for now i agree with 88 just see how it does since i got it already. the pipe is already cleaned up i need to clean and wrap the crossover now.
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Elder User
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i got the up pipe cleaned up and im picking up studs to mount it to the turbo. i gotta check into heat wrap for the cross over next anyone know where i can find it cheap? and is it worth wrapping the up pipe too?
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i was assuming ebay would be cheapest. usually is. those turbo blankets are a bit costly but i may have to pick one up if its cheap, but thatll be down the line first 1000 miles ill pass on the blanket so i can keep an eye out for oil leaks etc.
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ran some numbers for the stock 7.3l motor and the stroked motor they are fairly close.
rmp 1000 1500 2000 2500 3000 3500 4000
cfm .9ve 115.62 173.43 231.25 321.18 385.42 449.65 513.89
lbs/min 8.43 12.65 16.87 21.10 25.32 29.54 33.76
boost psi 0 3 5 10 15 20 25
pr 1.20 1.34 1.68 2.02 2.36 2.70
corrected lbs/min 0 7.53 13.34 23.17 33.36 45.40 59.30
the corrected lbs/min can be used at the selected boost to find a turbo. if anyone else needs their math done let me know. the stroker was a little better for this turbo but not much so this should work +/- 20% for the 6.9 also.
this is without ic, which will move the line on the map to the right so adding an ic will be good.
this is assuming a 90% ve which is really good, as you do not always have this good of ve a diesel at load will see 90%.
on another note we are using 90 cc of fuel at high load and stock pump, if you want to simulate a new pump that can be done here
Not2Fast: Turbo Calculator
just change to the injector size to the new pump cc and you got a rough base to see what that change will make and if it will be worth it at that fuel level. you can also change boost and rpm. this is basiclly setup for the idi as i saved it here.
rmp 1000 1500 2000 2500 3000 3500 4000
cfm .9ve 115.62 173.43 231.25 321.18 385.42 449.65 513.89
lbs/min 8.43 12.65 16.87 21.10 25.32 29.54 33.76
boost psi 0 3 5 10 15 20 25
pr 1.20 1.34 1.68 2.02 2.36 2.70
corrected lbs/min 0 7.53 13.34 23.17 33.36 45.40 59.30
the corrected lbs/min can be used at the selected boost to find a turbo. if anyone else needs their math done let me know. the stroker was a little better for this turbo but not much so this should work +/- 20% for the 6.9 also.
this is without ic, which will move the line on the map to the right so adding an ic will be good.
this is assuming a 90% ve which is really good, as you do not always have this good of ve a diesel at load will see 90%.
on another note we are using 90 cc of fuel at high load and stock pump, if you want to simulate a new pump that can be done here
Not2Fast: Turbo Calculator
just change to the injector size to the new pump cc and you got a rough base to see what that change will make and if it will be worth it at that fuel level. you can also change boost and rpm. this is basiclly setup for the idi as i saved it here.
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From: Over There
I'd like to know more about this, got more info or know where to find it.
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rupe, i was thinking about a compound system. but theres a lot more math involved in that, i will have to see what i find once i run the numbers, it looks with a small comp before the t70 a compound would work really well. but before that i will need a lot more fuel and studs, this innitial setup is just to see if the motor will take boost well ( leaks etc)
brute it was installed as a crate motor in early 90s i dont have much info on it. when i bought the truck i was 15 and thought a stroker kit was well like a small block chevy. its got some good high end but with the c6 highway is not much fun, it would do better with a zf5. the company went out of business i found some info on them years ago. so far i found they went out of business after only selling a few of these kits.
brute it was installed as a crate motor in early 90s i dont have much info on it. when i bought the truck i was 15 and thought a stroker kit was well like a small block chevy. its got some good high end but with the c6 highway is not much fun, it would do better with a zf5. the company went out of business i found some info on them years ago. so far i found they went out of business after only selling a few of these kits.