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in neutral i did not think it would make boost without a load.
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in neutral i did not think it would make boost without a load.
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I LIKEEEEE! yes sir thats pretty nice,good job!
. The Turbos are T3/t4. 
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I made the manifolds myself from a set of big block a-body fender well headers, not much left
GoGreen, I think the extraordinarily short distance from the head to the end of the downpipe is what makes it loud, plus it is idling around 1200. give or take. you have long tube headers leading to your turbos, then the downpipes reach all the way back to the firewall. my turbos are 6" from the exhaust port and the downpipes are only 18" long. I haven't gotten enough boost to see if the wastegates work. I have 8lb springs and I've only achieved 6lbs so far. the blow off valve certainly works
. Why an olds?.
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btw, it makes 2lbs idling at 1000rpm
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The Turbos are too small. i should have gotten T4's, but i figured these would make boost off of idle and almost act like a supercharger
.
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btw, it makes 2lbs idling at 1000rpm
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btw, it makes 2lbs idling at 1000rpm
it is not making boost at idle
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Tim,
What ae the specs on the turbos ?
Allan G.
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Tim,
What ae the specs on the turbos ?
Allan G.
T3/T4 Turbos
T3 Flange to Manifold
- 5 Bolt Hot Side Downpipe Flange
- .50 A/R Compressor
- .63 A/R Turbine
- 3" Inlet & 2" Outlet
- 1/8 NPT Oil Inlet
- 350 WHP capable
- 5~30 PSI Working Pressure
- Computer Balanced Individually
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the mechanical fuel pump is boost referenced and surprisingly works
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I finally got a seat mounted, installed the ratchet shifter, and hooked up the throttle.
building boost
First Burnout
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I have a locked distributor
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I have a locked distributor
That's it? No retard box?
Whats it locked at?
. I was going to put my tach drive setup in the car, but didn't want to weld on that distr.
it will work with the stock mopar unit also or orange.silver box. 
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I have a locked distributor
That's it? No retard box?
Whats it locked at?
30deg right now. I might back it down to 25.
Metal storm, I still have to buy a tach
Quote:i went 10'4's with 8lbs,no cooler and 3900 lb car.
8lbs. I'm figuring it should be safe on 93 without an intercooler. I have 16lb wastegates if I want to try race gas. I plan to be able to run high 11's. Hopefully I won't need the 16lbs to achieve it with the car weighing 3000lbs
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But I have a 383, with open chamber big valve heads, stock pistons with 7.55:1 comp, stock sized hydraulic cam, modified Holley 600DP, and 2.56gear. I might be dreaming with the 11second hopes
346 heads w/2.14,1.81 valves,8.5cr,.559 solid cam,4.10 gear and you dont have the blower to drive.) Break out the blown HEMI instead so we can have some fun 
Maybe I should pull the 511ci motor from the convert. that is a proven 11sec motor 
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8lbs. I'm figuring it should be safe on 93 without an intercooler. I have 16lb wastegates if I want to try race gas. I plan to be able to run high 11's. Hopefully I won't need the 16lbs to achieve it with the car weighing 3000lbs
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But I have a 383, with open chamber big valve heads, stock pistons with 7.55:1 comp, stock sized hydraulic cam, modified Holley 600DP, and 2.56gear. I might be dreaming with the 11second hopes
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8lbs. I'm figuring it should be safe on 93 without an intercooler. I have 16lb wastegates if I want to try race gas. I plan to be able to run high 11's. Hopefully I won't need the 16lbs to achieve it with the car weighing 3000lbs
IMO you're treading on thin ice here with no I.C, iron heads, no meth injection, a blow through carb and no timing retard. 93 octane is extemely risky with all those factors.
I'd stick the timing at 10-15 and tune up from there. Keep in mind 'rich' isn't good enough, you'll want 11.5:1 OR LESS if you want to run pump gas.
Edit: just a quick engineering calc for you.
Assuming:
80 degree turbo inlet temps
8 psi boost
No intercooler
No meth/water injection
76% compressor efficiency (probably isn't if ebay turbos)
Constant specific heats for faster calc
You're looking at 174 degree intake temps, and that's not including heat transfer from various sources (usually good amount from turbo itself).
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8lbs. I'm figuring it should be safe on 93 without an intercooler. I have 16lb wastegates if I want to try race gas. I plan to be able to run high 11's. Hopefully I won't need the 16lbs to achieve it with the car weighing 3000lbs
IMO you're treading on thin ice here with no I.C, iron heads, no meth injection, a blow through carb and no timing retard. 93 octane is extemely risky with all those factors.
I'd stick the timing at 10-15 and tune up from there. Keep in mind 'rich' isn't good enough, you'll want 11.5:1 OR LESS if you want to run pump gas.
Edit: just a quick engineering calc for you.
Assuming:
80 degree turbo inlet temps
8 psi boost
No intercooler
No meth/water injection
76% compressor efficiency (probably isn't if ebay turbos)
Constant specific heats for faster calc
You're looking at 174 degree intake temps, and that's not including heat transfer from various sources (usually good amount from turbo itself).
does a turbo produce that much more intake temp than a roots blower? I guess I should look into water injection
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I am switching down to 25deg. That worked well with the blower motor. and is more than 1deg per lb boost
, and cleaned up some of the wiring. I also installed a fuel pressure gauge and the pump works with the boost you can hear the blowoff as I shift into second gear they lasted a little longer than I expected. I am going to install some rubber hoses after I eat some late lunch. I also installed a seat belt for myself. I just need to buy myself a tach and driveshaft loop and I am ready for Lebanon Valley
5lbs is a good kick in the pants.maybe check the pipes to the carb to be sure thay have no leaks.
)
he let me go.
, lengthened the wastegate dumps after burning a wire , and I think that's about it.
Quote:I picture the 2 of you looking at the stripes and giggling like a pair of school girls
Now that I have a tach, I took my car out for another test drive. The car does reach 8lbs and when the wastegates open it gets loud lol. It pulls up to just under 5k. I think that has alot to do with the stock sized cam though.
It also spun both tires through 3rd gear. This, despite being a single legger. Tom and I went back to look at the marks and sure enough, two sets of marks. And you can see each shift point lol
