Yet Another LSX Build Up
#1
Yet Another LSX Build Up
Decided to let out some of the things I have been rounding up these days and in turn try to gain some new info needed to finish this build up of sorts...
So here goes.
LSX #416 from my local dealer.
4.125 bore
4.00 stroke callies 24x crank
6.125 callies comp H-Beam rods
-5 cc 2618 Manley coated pistons
Hell Fire 1/16 1/16 3/16 nitrous rings
N-Motion single row T/Chain
Lingenfelter H/V Oil pump
227/240 639/649 on 114
L92 CNC'D 2.18 1.60 73cc heads (WCCH)Flow #'s Soon to be released.
Harland Sharp 1.7 Roller Rockers
arp ls2 head studs
L92 truck intake w/90mm DBW T/Body(For Now!)(Awaiting TVS)
60lb EV6 Injectors w/E-85 capability(For Now!)
1 3/4 Long tube headers
2600 triple disc Stall(?????)
Thats hitting the big stuff so far.Machine work is a joint effort from both very reputable and affordable sponsors from this site.(TPIS)(WCCH)(MAGNACHARGER)Parts gathered are also mostly procurred from sponsors(SDPC) and members from this site.
This build up will be flywheel dyno'd and hopefully turn out some really nice Numbers.
This is where the help comes in.
1. 6050lb total weight DD Suburban.It currently has a 5.3 maggie equip'd 4l65 Built tranny.will the 2600 stall be enough?Should I go larger and if so How much larger.
2. Constanly Bothering the guys over at Magnasun for the Soon to Be released TVS L92 Based Blower.Did my Cam choice Go too far? It is Really hard to try to create a NA/FI cam grind W/little draw backs from one to the other.(WCCH)Heads will take the Flow.
3.Total compression is falling in at 11.1 to 1 So 6 psi will probably be the max.Am i Going to far?(Vortec's are pushing 5-6 psi on the ls7 vettes @ the same compression ratio).
4. Gears Upgraded,Currently they are the stockers but would like to go to 3.73-4.10's with new lockers.Hopeing to help move this weight around a little easier.
5. Headers?Should i Go Full Custom and Supersize them to 1 7/8 step 2" and
3" dual exhaust out?.
And the last one How Much HP NA/FI with TVS2300 do you THink this COULD produce.Idle Quality,And Did I just take the DD out of my fun family go getter.
Supersub
So here goes.
LSX #416 from my local dealer.
4.125 bore
4.00 stroke callies 24x crank
6.125 callies comp H-Beam rods
-5 cc 2618 Manley coated pistons
Hell Fire 1/16 1/16 3/16 nitrous rings
N-Motion single row T/Chain
Lingenfelter H/V Oil pump
227/240 639/649 on 114
L92 CNC'D 2.18 1.60 73cc heads (WCCH)Flow #'s Soon to be released.
Harland Sharp 1.7 Roller Rockers
arp ls2 head studs
L92 truck intake w/90mm DBW T/Body(For Now!)(Awaiting TVS)
60lb EV6 Injectors w/E-85 capability(For Now!)
1 3/4 Long tube headers
2600 triple disc Stall(?????)
Thats hitting the big stuff so far.Machine work is a joint effort from both very reputable and affordable sponsors from this site.(TPIS)(WCCH)(MAGNACHARGER)Parts gathered are also mostly procurred from sponsors(SDPC) and members from this site.
This build up will be flywheel dyno'd and hopefully turn out some really nice Numbers.
This is where the help comes in.
1. 6050lb total weight DD Suburban.It currently has a 5.3 maggie equip'd 4l65 Built tranny.will the 2600 stall be enough?Should I go larger and if so How much larger.
2. Constanly Bothering the guys over at Magnasun for the Soon to Be released TVS L92 Based Blower.Did my Cam choice Go too far? It is Really hard to try to create a NA/FI cam grind W/little draw backs from one to the other.(WCCH)Heads will take the Flow.
3.Total compression is falling in at 11.1 to 1 So 6 psi will probably be the max.Am i Going to far?(Vortec's are pushing 5-6 psi on the ls7 vettes @ the same compression ratio).
4. Gears Upgraded,Currently they are the stockers but would like to go to 3.73-4.10's with new lockers.Hopeing to help move this weight around a little easier.
5. Headers?Should i Go Full Custom and Supersize them to 1 7/8 step 2" and
3" dual exhaust out?.
And the last one How Much HP NA/FI with TVS2300 do you THink this COULD produce.Idle Quality,And Did I just take the DD out of my fun family go getter.
Supersub
#2
TECH Veteran
I would be concerned with all that power pushing three tons through a 700R4 and a 10-bolt rear. I hope you don't have big rubber, otherwise you'll certainly be breaking stuff.
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#8
I AM A MOTHERF*CKER
iTrader: (1)
3.Total compression is falling in at 11.1 to 1 So 6 psi will probably be the max.Am i Going to far?(Vortec's are pushing 5-6 psi on the ls7 vettes @ the same compression ratio).
10.8 is close to bottom for it at this point
5. Headers?Should i Go Full Custom and Supersize them to 1 7/8 step 2" and
3" dual exhaust out?.
3" dual exhaust out?.
Cam is pretty extreme in the lift department -- you will need some pretty serious fly cuts (unless the L92 angles fix that PV clearance issue -- I don't know). You should probably be closer to a 117.5 on the lsa -- what you have has a decent bit of overlap to it (you want 0 for boosted motors), but I like the duration. It might be a little too much split, but your combo wants a good split -- I'd have suggested a 10 or 12* split, and you're at 13
Last edited by TurboBerserker; 10-18-2007 at 08:12 AM.
#10
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