Carbureted LSX forum - got a cam coming for my 370 build.

I have a thread in the drag racing tech section
http://m.ls1tech.com/forums/showthread.php?t=1500161

Run down
2004 lq4. Block. Stock crank .ls2 rods. Flat tops w/ valve reliefs
.040 headgaskets. 11.25:1 comp.
Ported ls3 heads milled. 035 "
Victor jr l92 intake
Proform 850 carb.
Jp roller timing set
Msd controls the truck coils.
ls7 lifters

Geoff at eps speced me out
235*/251* @050" .621"/.631" 110lsa. Cam has 4* advance built in. Sould peak at 7200

Should he here in a couple of weeks. Can't wait to get this baby running.

Still don't have a l92 Vic jr so if any of you got one for sale pm me.

Thanks.

Forget the vj, go with a mast

sounds like it should be a pretty stout setup.
that combo is probably going to eat that carb, gonna need a bigger one.

my new engine combo is VERY close to yours, I will have mine on the engine dyno hopefully by early feb.

When the cam was spec'd, what was Geoff's thought process behind the big 16° split? 235°/251°
That is quite a bit bigger of a split than the ~8° that has become commonplace in the L92 world.
(- Just curious, I am always looking to read and learn about something new.)

What are you planning for headers and exhaust?

What does your camaro weigh?

Mike @ CFM has some produced some great heads.

There is a member on this board running a a nearly identically spec'd engine to yours that has run 10.70's@125 with a 1.47 60ft on pump gas. It is a 6.0 LY6 with CFM ported heads in a 3700lb 68 chevelle, 200r4 trans, Victor jr, 750 carb.
Simple but fast combo.

Forget the vj, go with a mast

$$$$$$$ keyword BUDGET LOL

sounds like it should be a pretty stout setup.
that combo is probably going to eat that carb, gonna need a bigger one.

may give pro systems a call once i see how it runs. what carb you running on your lq4

my new engine combo is VERY close to yours, I will have mine on the engine dyno hopefully by early feb.

sweet!! i will be tuned in:corn: what setup you got going on

When the cam was spec'd, what was Geoff's thought process behind the big 16° split? 235°/251°
That is quite a bit bigger of a split than the ~8° that has become commonplace in the L92 world.
(- Just curious, I am always looking to read and learn about something new.)

he told me the intake valve doesnt need to be open very long to fill the cylinder due to the huge intake ports. we'll see how she runs..

What are you planning for headers and exhaust?

What does your camaro weigh?

Mike @ CFM has some produced some great heads.

There is a member on this board running a a nearly identically spec'd engine to yours that has run 10.70's@125 with a 1.47 60ft on pump gas. It is a 6.0 LY6 with CFM ported heads in a 3700lb 68 chevelle, 200r4 trans, Victor jr, 750 carb.
Simple but fast combo.


not sure on headers yet. not alot availible for 82-92 camaro.

havent scaled it. has no a/c , heater box, rear seats, crash bars front and rear removed. its an rs maybe 3400 with me in it? im a small guy.

mike was telling me about a guy with a heavy chevelle that he ported up. said it turned out good. thats the results im looking for.

Hawks has some nice headers for the 3rd gen cars. Made by Stainless Works.

http://www.hawksthirdgenparts.com/headerscatsandgaskets.aspx

pic courtesy of thirdgenbum (http://ls1tech.com/forums/conversions-hybrids/1064018-my-thirdgen-finally-lsx-powered-2.html#post11227449)
http://i86.photobucket.com/albums/k108/mw66nova/103_0677.jpg

the 1 3/4 pri with 3" collector look promising

Mine is an LY6
.050" cut from the heads
.040" cometic gaskets
Should be ~ 11.0:1
Flycut stock pistons
Cam 236/262 @ .050 110 strait up .6xx/.6xx lift (cam guru did not want me to let that out)
Supposed to peak about 7300, and hang on till 7700 shift point
PAC valvesprings
VicjrL92 850 mighty demon
1 3/4 - 17/8 step Edelbrock headers
Moroso electric water pump
Ati balancer
My car weighs 3425 w/ me, and I'm looking for 10's @ 125 ish........ We'll see

may give pro systems a call once i see how it runs. what carb you running on your lq4

a used pro systems 850. still tuning and adding jet to it. have 89 in front and 90 in rear. probably going to send it off to them next month or so to get it calibrated for my setup.

Mine is an LY6
.050" cut from the heads
.040" cometic gaskets
Should be ~ 11.0:1
Flycut stock pistons
Cam 236/262 @ .050 110 strait up .6xx/.6xx lift (cam guru did not want me to let that out)
Supposed to peak about 7300, and hang on till 7700 shift point
PAC valvesprings
VicjrL92 850 mighty demon
1 3/4 - 17/8 step Edelbrock headers
Moroso electric water pump
Ati balancer
My car weighs 3425 w/ me, and I'm looking for 10's @ 125 ish........ We'll see

Any work to the heads besides mill? What springs you gonna stick on it? Im thinking lunatic dual springs. Good for. 660" can be had for $220. Shipped from alantic speed

a used pro systems 850. still tuning and adding jet to it. have 89 in front and 90 in rear. probably going to send it off to them next month or so to get it calibrated for my setup.


I just remembered I have a quick fuel 1050 up in the attic. I jiust put newa seals it and stored it. Put itit back to the way it came from qft. Do you think that would be a better match to start with? It was in an e85 big block. It had the metering blocks nodded for e85

Not unless you plan to run E85... the jetting and metering will be WAY too big for gas.

Any work to the heads besides mill? What springs you gonna stick on it? Im thinking lunatic dual springs. Good for. 660" can be had for $220. Shipped from alantic speed
PAC's1521. AFAIK they are the best that can be had, that fit into the l92 heads
there goes the budget.........lol

Wow both these engine sound nice!

3pedalsdoing anything to the bottom end?

Bruce

im doin the same engine pretty much. lq4 with ls2 internals, carb, ls3's, and victor jr. my cam specs are close to yours, 234/250. i hope they run good! good luck with the build i hope your as excited as me to get it finished!

3pedalsdoing anything to the bottom end?
Nope, just ARP2000 rod bolts, no money for rods/pistons right now, next time.
jgillen91 - when do you plan to have yours together? are you going to put it on a dyno? I'm definately interested to see how both our engines do, seems like ALOT of guys putting VERY SIMILAR combo's together.
Barrett

Think hawks offers a 2 inch primary header for 1200, I got my 1 3/4 from them for 800, nice pieces.

Those combos will all run harder than my lq4 with stock heads, I think the 850 carb will be fine, we are not talking 400+ cubes here.

Curious to see how well all you guys run in comparison with the ls3 top ends.

Nope, just ARP2000 rod bolts, no money for rods/pistons right now, next time.
jgillen91 - when do you plan to have yours together? are you going to put it on a dyno? I'm definately interested to see how both our engines do, seems like ALOT of guys putting VERY SIMILAR combo's together.
Barrett

Hope to gave engine completely built at the end of feb. Gonna have to save up for some headers. Hope to have it running sometime in march. Not gonna dyno it. I am hoping for 600hp at the. crank. 10.70"s at 125+ check your compression ratio calculator. You are gonna be a lil higher than 11:1 . My flattops. with -3.3 cc v/r and milled. 035"63 on heads put me at 11.25:1 with. 040 gasket pistons outta the hole. 006"

Couple other choices out there for headers.

BRP:
http://stores.bulldawgmusclecars.com/-strse-60/82-dsh-92-F-dsh-Body-LSx-1/Detail.bok
http://stores.bulldawgmusclecars.com/media/00/a64735d12eeda4c15db39d_m.jpg

Hedman Hustler:
http://www.hedmanhusler.com/1982-92-F-Body-Gen-3-LS-Swap-Headers

Both those headers are the same. Headman makes brps headers. The oil filter and starter access is horrible. Flat collector too

I've got a 6.2l ls3 with stock internals, ls3 heads no port work just valves and springs. Gmpp intake 780carb and a custom ground cam. 498 at the wheels