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The Turbonetics would be all in at 4600rpm and the Precisions are all in by 4300rpm. The SBE would bend rods around 28psi and yes thats wheel HP. At 4200 pounds the truck trapped 143mph on 15-16psi. Ive never ran it at the track on higher boost cause the truck isn't track legal. The precisions make a lot more power than the Turbonetics did.
Were the turbonetics journal or ball bearing? Ported 243's or untouched?
What money? He's slapping rods in pistons in a 5.3 block.. hardly what I would call "big money"
i meant the guys that spending the money on a set up to get over 1000hp why would you cheap out on the crank? i know denmah has done it on a budget but getting to 1k hp isn't going to be cheap when you consider all things like the engine, turbo and components, fuel set up, etc. I guess i worded it a little out of order.
I had a SBE aluminum gen 4 5.3 back in 2012 and it would spool twin Turbonetics Tseries 7668s no problem. This was with 243 heads and a Tooley/LJMS stage 3 turbo camshaft and holley 92mm high ram. Here is a video of it spooling them.
This setup was pushed to 28psi and a little over 1200hp. I then swapped to Wiseco pistons and Callies rods, Tooley TFS 220 heads, 1/2" studs and Cooper ring gaskets, Holley dominator setup, and a pair of PTE CEA 6766s. Im pushing 35psi now.
I had a SBE aluminum gen 4 5.3 back in 2012 and it would spool twin Turbonetics Tseries 7668s no problem. This was with 243 heads and a Tooley/LJMS stage 3 turbo camshaft and holley 92mm high ram. Here is a video of it spooling them.
This setup was pushed to 28psi and a little over 1200hp. I then swapped to Wiseco pistons and Callies rods, Tooley TFS 220 heads, 1/2" studs and Cooper ring gaskets, Holley dominator setup, and a pair of PTE CEA 6766s. Im pushing 35psi now.
holy **** !! Mine at 7868s but they seemed to spool up real fast bro that's what I was wondering . I don't wanna run a 5.3/5.7 and have them take forever to spool. Right now mines full on at 26-2700 Rpms with a single and I'd like to see it spool by 3000 on the twin setup. I made 609/647 today on 13 psi with a bone stock ls1 minus a tsp228r cam , springs,pushrods, headstuds snd ls9 gaskets. Ran out of fuel though so time to upgrade to the racetronix dual 340 pump setup with brfpr, upgraded lines and rails. What's a good all around injector for tuning , that I can go from 800 to 1200 rwhp with?
What is the hard honest realistic goal of the vehicle? What vehicle...light or heavy? Just want a hp number or do you want fun on the street?
I see the F1-68 turbine is a 79mm inducer and the 68mm in 7868 is the outlet. That is big. it would be better suited as a single turbo on a 5.3. But a 79mm turbine inducer is gonna have a hard time driving a 78mm compressor I think. It is not efficient for a twin system I do not think. EDIT: Then again....See DBRODS videos below... That looks like they will work just fine...
The Borg Warner S362 has a 61.5mm compressor being driven by a 76mm turbine wheel.....just 3mm smaller than the 79mm turbine you are talking about. S362 has much better leverage to get the compressor spinning AND is capable of flowing 75lb/min. So a pair of those should be able to flow enough for something insane like 1300 or so hp at the flywheel.
its a 98 z28, I'm gonna run the racetronix fuel system, I have a low mileage 6.0 out of a 2002 chevy 2500hd with everything . Picked it up for 500.00 over the winter . Gonna run with a crp fab 9 , and still undecided on who I'll get my t56/tr6060 from. I want a car that is capable of making 1500 rwhp but more than likely only see it a few times a year. A 1000 rwhp street car so to speak. I'm sitting at 610 rwhp currently and my fuel system is taxed at this point so it's certainly time for an upgrade . I don't see why twin 340s with a dual boost a pump wouldn't support my goal. I think I'll just pull the 6.0 apart, throw some good rods and pistons in, stud it, run a custom ground turbo cam , and rock both my 7868s and see what happens .
They where Journal Billet 7568s. The 243s had very light work. Cut the bolt boss out of the runner and blend the seats.
Very cool.
What size downpipes and what was turbine housing AR?
Do you think the overall weight of your vehicle had a great affect on them spooling? BTW, what was your rear gear?
Very cool.
What size downpipes and what was turbine housing AR?
Do you think the overall weight of your vehicle had a great affect on them spooling? BTW, what was your rear gear?
The downpipes are 4" with a 1.5" long transition at the turbine from 3-4". The housings are .81 AR. I run a 30" tire with 3.42 gears. The trans is a PTC glide with a 1.80 first gear and a 9.5" PTC converter. I think the right converter makes the combo work. When I had a 4l80e I had a PT3600 yank and it worked awesome also. I've built several of these combos and they all work really well.
The downpipes are 4" with a 1.5" long transition at the turbine from 3-4". The housings are .81 AR. I run a 30" tire with 3.42 gears. The trans is a PTC glide with a 1.80 first gear and a 9.5" PTC converter. I think the right converter makes the combo work. When I had a 4l80e I had a PT3600 yank and it worked awesome also. I've built several of these combos and they all work really well.
Love what you have accomplished with that truck and motor combo. Cool to see the glide in there. They are great for highway pulls IMO
I had a SBE aluminum gen 4 5.3 back in 2012 and it would spool twin Turbonetics Tseries 7668s no problem. This was with 243 heads and a Tooley/LJMS stage 3 turbo camshaft and holley 92mm high ram. Here is a video of it spooling them.
This setup was pushed to 28psi and a little over 1200hp. I then swapped to Wiseco pistons and Callies rods, Tooley TFS 220 heads, 1/2" studs and Cooper ring gaskets, Holley dominator setup, and a pair of PTE CEA 6766s. Im pushing 35psi now.
What ring gap people running 14-16 psi boost? 4th gen rods and pistons, arp stud everything, running rich for safety
03-01-2017, 09:24 AM
that's what I was wondering . I don't wanna run a 5.3/5.7 and have them take forever to spool. Right now mines full on at 26-2700 Rpms with a single and I'd like to see it spool by 3000 on the twin setup. I made 609/647 today on 13 psi with a bone stock ls1 minus a tsp228r cam , springs,pushrods, headstuds snd ls9 gaskets. Ran out of fuel though so time to upgrade to the racetronix dual 340 pump setup with brfpr, upgraded lines and rails. What's a good all around injector for tuning , that I can go from 800 to 1200 rwhp with? 
