View Poll Results: Which motor for my new D1SC Kit
347, Stock intake/heads
2
5.00%
347, Completely rebuilt, PRC stage 3 heads, Ls6 intake
18
45.00%
TSP 408ci built for boost.
20
50.00%
Voters: 40. You may not vote on this poll
D1SC Kits + Vote on motor build
06-16-2009, 06:37 PM
#1
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D1SC Kits + Vote on motor build I got a great price on a D1SC kit that I couldn't pass up so I bought it. Now I need to start a motor. (upgraded fuel system, forged bottom end (stock crank) is a given)
1. 347ci, stock heads 853, stock intake (non ls6), everything stock, Just do forged rods and pistons.
2. 347ci, Completely rebuilt, ls6 intake, PRC Stage 3 heads, FI Cam, Double timing chain, ls6 ported oil pump, ls7 lifter, chromoly push rods, (The Whole Shabang)
3. TSP 408ci, completely built for boost.
1. 347ci, stock heads 853, stock intake (non ls6), everything stock, Just do forged rods and pistons.
2. 347ci, Completely rebuilt, ls6 intake, PRC Stage 3 heads, FI Cam, Double timing chain, ls6 ported oil pump, ls7 lifter, chromoly push rods, (The Whole Shabang)
3. TSP 408ci, completely built for boost.
06-16-2009, 06:58 PM
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When I could build a 402/408 and run lower boost and make the same power, and it will last a WHOOLE lot longer
06-16-2009, 08:24 PM
#4
Im not rich or loaded or anything... But I do have a DD and I can save up money pretty quick if I went with option 3. I am just thinking putting 18-19#'s on a 347 how long will it Really last? Would I be able to put 50,000 on it without it coming completely apart? Probably not..
When I could build a 402/408 and run lower boost and make the same power, and it will last a WHOOLE lot longer
When I could build a 402/408 and run lower boost and make the same power, and it will last a WHOOLE lot longer
06-16-2009, 09:42 PM
#6
A 302 will spin the blower the EXACT SAME SPEED as a 454 at any given RPM with the same pulley selection, the boost you see will be what changes, power would be comparable. The blower speed is directly related to RPM of the motor, its not a turbo. Also, 19 PSI on a 347 may be 13psi on a 408.
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06-16-2009, 09:46 PM
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A 302 will spin the blower the EXACT SAME SPEED as a 454 at any given RPM with the same pulley selection, the boost you see will be what changes, power would be comparable. The blower speed is directly related to RPM of the motor, its not a turbo. Also, 19 PSI on a 347 may be 13psi on a 408.
06-16-2009, 09:50 PM
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Also with that "budget build", will I be able to pull numbers like your car? I realize my track times will probably never be in the 9s likes yours (will be lol).. Just due to the fact I'm running a 6speed and not a built auto.
06-17-2009, 12:52 AM
#12
I'm just doing a stock 347 with a forged bottom end, ARP harware throughout, Patriot 6.0L heads, blower cam and a D1SC. I can almost promise it'll get you where you want to be unless you're wanting to go faster than 9's@ about 140mph. That's plenty fast for me but it depends on what your goals are.
To be honest, I just don't want to add the weight of an iron block personally and the 347 can make VERY good power and put up VERY good numbers with about 12-14lbs of boost.
I voted option #2 by the way.
To be honest, I just don't want to add the weight of an iron block personally and the 347 can make VERY good power and put up VERY good numbers with about 12-14lbs of boost.
I voted option #2 by the way.
06-17-2009, 06:30 AM
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I don't want a PURE drag car. That's why I have a 6 speed 
. I want this car to be for MY enjoyment, I want to be able to drive it around town and play on the street if I want. But also be able to change tires/wheels and go to track and run low-mid 10's
. I want this car to be for MY enjoyment, I want to be able to drive it around town and play on the street if I want. But also be able to change tires/wheels and go to track and run low-mid 10's 
06-17-2009, 11:30 AM
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why not do the happy medium and go with a 370? It'll handle just about what the 408 will and not cost as much...
I switched from a T56 to a th400 because I wanted better load on the turbo, and yes... this will be a street car with very LITTLE track use. I'm chasing those busa's
IMO, your potions should have been like this,
1. 347 with the stuff in your option 2
2. 370 with what you need for boost
3. the 408
I switched from a T56 to a th400 because I wanted better load on the turbo, and yes... this will be a street car with very LITTLE track use. I'm chasing those busa's
IMO, your potions should have been like this,
1. 347 with the stuff in your option 2
2. 370 with what you need for boost
3. the 408
06-17-2009, 01:29 PM
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bigger motor less boost! im running a tsp 402 with afr heads and A&A blower cam, with a big pulley (4.63) 4.5 psi and making 696 at the wheels on a dynojet
do it right the first time!
do it right the first time!