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My 408 is finally ready so I am having it put in to replace the 5.3. Is there anything that I need to do or modify in order to do this swap? Also, I have a SSR intake that I wanted to put in but want to know if it is a straight forward install. Should I get a 90mm TB to go with the new intake.
You need an updated tune. Yes, a 90mm TB is a must have in my books. :thumb:
What heads do you plan to use with it? You need to space the windage tray down about .1", the standard thickness of an ARP washer. Also check that the oil pickup tube isn't closer than 1/4" to the bottom of the oil pan.
I bought EFI Live and Justin sent me a 408 tune to get me started.
What TB do you recommend?
I am using P&P 6.0 heads from WCCH.
I plan on going F/I so should I just use my stock truck intake instead of the SSR one? What about the stock TB?
I haven't done it yet but a fast 90mm setup would be great for the 408. Rhymes, huh. You could go with an aluminum 4 barrel type intake with an elbow and the 90mm setup. That's what I'm contemplating but I think I'll look for a larger TB than 90mm when I finally do mine. If 78mm is for 5.7s and 90mm is for 6.0s, seems like you'd need around 100mm for 6.7L engines. If you had gone to a rectangular port intake like the L92 I'd say go with the L92 or L76 intake and TB. If you go with a 90mm there are lots of good manufacturers out there but the Nick Williams seems to be more popular for performance than even the FAST units.
I guess I should ask if you have cable or electronic throttle.
I guess more information is needed. Is this a N/A engine or is it forced induction?
Just because I am nosey & just finished my 408 swap, what are yur specs? I am running the WCCH's too.
I am still running the stock 6.0L TB & intake, and that could be why it seems to lack up top. Could be the unfinished tune too. But I am planning on turbo, so I don't plan on changing it.
The engine is set up with a 8.7 cr and I will be installing a STS with GT70 after the engine gets broken in. I was told the cam is 224/231 LSA 114, 595 dur.
The next step up was the GT76 but I did not want too much lag.
that sounds so frickin sick!!!! man, makes me want to spend all of my income tax return lol
btw love the bare feet.
Damn, that looks like fun! That car idles about 1500 or so, huh? Sounds tough.
:thumb:Bad ass video!!! I did not see much turbo lag there. How much will I be limited by using the GT70 instead of the GTS-76? It would cost me another 1K to upgrade to the GTS-76.
I assume the 76 would be used for 12xx otherwise let me know where I can find one for so cheap.
Where can I buy one for that price? Ebay, local shop etc.?
Very close..Quote:
Originally Posted by SRT10KLLR
I am 9.6 CR with 228/232 .595 112 LSA
Got a 76 on a 6.0L and no lag at all. A T76 is what you need. You can pull 15 psi easy. Ask Allen Nelson, he may be able to get them at a reasonable price. nelsonperformance.comQuote:
Originally Posted by SRT10KLLR
That's how much boost(15psi) I want to run. Is the GT70 to small for the amount of air the engine needs?Quote:
Originally Posted by Jamest
Thanks, I will try Dr. Turbo to see if he has a Garrett GTS-76 turbo for under $1300.Quote:
Originally Posted by Quik
BTW, what size injectors do you think I will need? I am not installing the turbo yet but I need to start preparing for it.
I tried searching the member list on LS1Tech for a Dr. Turbo and no luck. Does he go by something else?
How about the Siemens 60lb injectors for both N/A and boost? I am only going to be N/A for a short time, just long enough to break in the engine and get some baseline numbers.
The 60lb injectors(@3 bar - 43.5PSI) are good for up to crank 800hp at our 58PSI(4 bar). I don't think I will make more power than that.
There are also bigger high imp injectors like these: Racetronix 01D129xFM Injector
Those are good for up to 1000 crank HP. :eek:
Those 79lb(@ 3 Bar) injectors I posted up are good for 1000 HP and do not need the Versafuel or anything else to work.
That is using a BSFC of 60%(0.60), 58PSI(fuel pressure) and 85% IDC.
I am using SH4-750 73lb RC Engineering injectors, here's a link.
Saturated Injector SH4-0750
They said they would be good in my 408 with 16psi for 1000HP but not much more.
You might want to check out the borg & warner S400 series turbos. Price performance probobly the best available right now.Quote:
Originally Posted by SRT10KLLR
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