Twin turbo...

mississippi cobra93 · 11-10-2008, 02:21 PM

I have a 347 stroker motor with a turbo. It has a Z cam in it but does not cam hard. Can i change the cam to a F cam and get a good hitting sound from it! thanks for the help anyone.

mississippi cobra93 · 11-10-2008, 02:42 PM

I bought the red 93 cobra in Brooklyn NewYork and had to do a lot of things to it since ive bought it. had bent pushrods in it and kinda had a slight tap in it so im fixin to take out the motor and go through it and just wondering if a f 303 cam would work well with a turbo? it has a z cam but does not hit hard at all the car was a sleeper car it would suck up a zo6 vette easy! just wont that hard hiting cam sound!

chiaj144 · 11-17-2008, 10:14 AM

Did you twin turbos come with built in wastegates? Reason I ask is that alot of those ebay kits come with internal wastegates. Your stock internals will outlive the block. I have seen cars split the block with as little as 350rwhp and have seen others live at 580rwhp. As a general rule keep it to about 480 with a good tune and it should live for a while. I would suggest that you have the heads checked for straightness, run studs and a MLS gasket (fel pro, cometic). You will need a 255 pump, 42 injectors and a boost referenced regulator. As for the computer, a tune is good but not necessary. You can run your timing locked at 19 or 20* depending on the type of fuel you run. Start with 40 psi fuel pressure with the vacuum spout off and go from there. You could also look into the XPI timing lock. It runs normal timing until a desired boost level then locks it from there on out. I wouldn't go with a tune at first because you are going to end up wanting more boost. If you up the boost your tune will need to be redone=$$$.Go to the turboforums.com ever question you can think of has already been answered 100 times.
Here is a video of my car with a single turbo at 9psi first day out with no tune and 7 cylinders (fouled plug). 100% stock motor. MPH was 114.7, 2.01 60'.
Index of /carl/track
click on the carl link.

chiaj144 · 11-17-2008, 10:19 AM

Quote:

Originally Posted by mississippi cobra93

I bought the red 93 cobra in Brooklyn NewYork and had to do a lot of things to it since ive bought it. had bent pushrods in it and kinda had a slight tap in it so im fixin to take out the motor and go through it and just wondering if a f 303 cam would work well with a turbo? it has a z cam but does not hit hard at all the car was a sleeper car it would suck up a zo6 vette easy! just wont that hard hiting cam sound!

The f cam is the best alphabet cam you can buy for a turbo but I wouldn't bother going to all the work to change it out. A f cam has supported over 850hp on a turbo build.

goodyear1984 · 12-04-2008, 11:35 PM

so true dont bother with thoes cam's call and get a cam made for your set up

goodyear1984 · 12-04-2008, 11:39 PM

ps if u have a stock block ur gonna build make sure its a x block if its not then you have the weaker block

11-10-2008, 02:21 PM	#1
mississippi cobra93 Registered Member Join Date: Nov 2008 Posts: 2	Re: Twin turbo... I have a 347 stroker motor with a turbo. It has a Z cam in it but does not cam hard. Can i change the cam to a F cam and get a good hitting sound from it! thanks for the help anyone.

11-10-2008, 02:42 PM	#2
mississippi cobra93 Registered Member Join Date: Nov 2008 Posts: 2	Re: Twin turbo... I bought the red 93 cobra in Brooklyn NewYork and had to do a lot of things to it since ive bought it. had bent pushrods in it and kinda had a slight tap in it so im fixin to take out the motor and go through it and just wondering if a f 303 cam would work well with a turbo? it has a z cam but does not hit hard at all the car was a sleeper car it would suck up a zo6 vette easy! just wont that hard hiting cam sound!

11-17-2008, 10:14 AM	#3
chiaj144 Registered Member Join Date: Oct 2008 Posts: 2	Re: Twin turbo... Did you twin turbos come with built in wastegates? Reason I ask is that alot of those ebay kits come with internal wastegates. Your stock internals will outlive the block. I have seen cars split the block with as little as 350rwhp and have seen others live at 580rwhp. As a general rule keep it to about 480 with a good tune and it should live for a while. I would suggest that you have the heads checked for straightness, run studs and a MLS gasket (fel pro, cometic). You will need a 255 pump, 42 injectors and a boost referenced regulator. As for the computer, a tune is good but not necessary. You can run your timing locked at 19 or 20* depending on the type of fuel you run. Start with 40 psi fuel pressure with the vacuum spout off and go from there. You could also look into the XPI timing lock. It runs normal timing until a desired boost level then locks it from there on out. I wouldn't go with a tune at first because you are going to end up wanting more boost. If you up the boost your tune will need to be redone=$$$.Go to the turboforums.com ever question you can think of has already been answered 100 times. Here is a video of my car with a single turbo at 9psi first day out with no tune and 7 cylinders (fouled plug). 100% stock motor. MPH was 114.7, 2.01 60'. Index of /carl/track click on the carl link.

12-04-2008, 11:35 PM	#5
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: Twin turbo... so true dont bother with thoes cam's call and get a cam made for your set up __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

12-04-2008, 11:39 PM	#6
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: Twin turbo... ps if u have a stock block ur gonna build make sure its a x block if its not then you have the weaker block __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

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