So I'm on a mission to rebuild my stock LB9 block and retain the TPI setup and push the most boost I can thorugh it to try and get the absolute max I can and still pass CA smog. I have it registered in an EPA zone that does NOT require a smog dyno, only the tailpipes.

First thing is figuring out which ProCharger setups are C.A.R.B legal. Learning from ******* setup, I'm going to go for a cog setup too along with the dual 3 core ICs on the sides of the radiator, it gets over 115 here in the summer easy. I know the FMU must be installed for smog but it will be dummy, I'm going to control boost thru the ECU and MAP sensor. I'll be doing 2 bars for sure, maybe 3 if I can pull it off with the tune and not loose too much graph definition and get past the smog *****.

As for my TPI setup, I already have a 52mm TPiS TB, stock plenum, SLP runners, Accel manifold, and 30lb injectors. I'll be sending it all off to be extrude honed after gasket matching and hogging out what I can of the upper plenum. I'll be going with bigger injectors too I'm sure.

For my bottom end, I'm going to get a complete rotating assembly from Crower. I'm working pricing right now to decide the lightest/strongest that I can afford.

Heads will be AFR 180 bare casts that will be machined for 1.94 valves for my 305 and fully ported to the max.

I'm undecided on the cam profile but have ******* old ProCharger cam as a base. I was going to work with Steve Morris at www.neweraracecraft.com for the final grind once I get some flow numbers on the final heads and have the bottom end complete with no surprises and get the intake complete.

So, there you have it. That's where I'm at now. I am determined to stick with my stock block no matter what as long as nothing terminal turns up during machine work and prep.

How much HP/TQ can the stock LB9 block handle? Should I splay the main caps or use a girdle? I would rather over build so this engine lasts as much as possible. What is the most anyone has made while still passing smog?

Thanks! I also have a personal goal of making under the hood look as factory as possible, like if they came from Pontiac with a ProCharger and the SLP package that it did come with. No chrome or crap like that.

 

The P1SC is the only one that is C.A.R.B. certified for 88-92 F-bodies.

 

I read that too but the literature that just showed up at my houe yesterday after requesting it, also says the D1SC is also CA legal. I'm just going to call and find out what the hell is going on lol.

 

Update: Still can't get ahold of Crower after 2 emails and a voice mail

Here are the cam specs I'm looking at:

Duration @ 0.050: 222/231, 508/530 lift w/1.5 rockers on a 114.4 lobe center


Here are the head specs I'm looking at:

AFR Stage 1 Bare Casting 180cc Heads:
EGR Ready, C.A.R.B. #D-250-2
0840 - AFR SBC 180cc L98 Angle Plug Heads w/Head Riser, 70cc
1230 - Angle Mill & Correct Intake 56cc, Drill & Spot Face
1262 - Drill late model 72° angle intake bolts
1291 - Drill & Tap Heads for Temp. Sensor
1263 - Center Bolt Valve Cover
6810 - SBC Intake Gaskets for 195cc, Fel Pro 1205?
6800 - Fel Pro SBC Gasket #1003 (2x $32)
6310 - ARP Complete Head Bolt Kit, 12-point head bolts
6610 - Teflon Valve Stem Seal (x16)
- ARP 234-4301 head studs
- ARP 134-7101 3/8" rocker studs
- Valve seats
- Manley Street Flow 1.94"/1.56" Valves
- Comp 987 springs
- Comp 730 Ti Retainers
- Comp 613 10° locks
- Machine work w/Superflow 1020 Bench Chart
Crower 72800LP-16 w/72915R - Stud Mt. Roller Rocker Arms 1.5 Ratio
Heli-Coil the heads
ARP Header Studs


I'll post my shopping list for the ProCharger in my next update.

 

why not afr 195's they flow higher and are carb legal.
i just bought a custom cam for my set because i am doing a rebuild on my engine right now. i talked to the guys at lunati cams for biggest cam they think that should pass would be the one they made me. 226/238 558/560 114 on 1.5 rockers. i can tell you the d1sc procharger isnt ca legal, i have that one and i know its not legal.

 

AFR told me the 195s can't be machined for the smaller valves I need for a 305 engine bore size.

 

Start with a 305 block and it will be far from Ultimate.

Start with AFR 180 heads and it will be far from Ultimate.

Start with a CARB legal procharger and it will be far from Ultimate.

Start with that small of a cam and it will be far from Ultimate.

My 92 has passed at a test only, Dyno type smog station in so cal with a 6.7 liter Rodeck (4.150 bore X 3.800 stroke), 220 cc Dart pro 1 heads and a solid roller 250 at .050 cam and a multi stage 400 hp nitrous kit on it. My car is far from ultimate, but i think it will kill any stock block 305 car around.

Jerry

 

JERRYWHO, perhaps then you missed the title of this thread or don't fully understand what CA Smog Legal really means...

Not swapping blocks (I don't want to require a referee, otherwise I would go LSx based)
Using heads that have the correct C.A.R.B. EO # (195s can't be machined for smaller valves required for a SBC 305 bore, maybe you missed that post too)
Using a ProCharger that has the correct C.A.R.B. EO # (If that means a PS1C then so be it)
The cam specs I'm looking at are more than fine for a street driven TPI based 305.

The entire point of my build is to build the most powerful TPI/stock block based CA emissions legal engine posible with todays technology. Don't hate just because my car started out with an LB9 instead of an L98.

Just becasue you got lucky and got a smog tech that didn't know his *** from third base or who didn't give a **** about a visual check, doesn't mean others will have the same luck. Why would I be stupid and throw money away on parts that would make the car fail only to have to go and buy correct parts to pass.

 

my F1 isnt smog legal but who cares

 

You have never once had a smog tech look at the blue plate on the head unit and look for the C.A.R.B. #?

 

I wasnt trying to be so blunt, but take a look at my sig, do you think that I even go to smog techs?

 

Haha, true, just read it lol. We used to have a local shop here that was on the take but they closed down from the economy last year. Best I could do was register in a different EPA zone to avoid the wheel dynos and be sniffer only. The guys here go the whole nine years and measure the cat temp, test the fuel cap, pinch the evap line, manually test the EGR, everything. Crazy smog ***** around here.

 

I am registered in a county to smog only if you sell.
no 2 year testing at all.

 

I never knew that even existed! That's awesome! I wonder how long it will last...

 

Dont know, been going on five years now..
after this fails, next step is registering out of state

 

Interesting build. I think the cam is about right, the only thing i'd do is run more lift on the intake side. maybe a 1.6 rocker there and leave 1.5's on the exhaust.

Should make some decent power.

 

Ok, thanks for the pointers!

I have a wanted ad going for the original AFR 195s they used to make for the 305 bore, maybe I'll luck out before having to pull the trigger on the 180s!

 

Those 180's will push some power on that motor. Probably enough to worry about the block at that point. 195's would be nice if they could fit the bore but you will shroud that large valve and it may hit the cylinder wall. If your TPI stuff gets fully ported to flow 260-270 cfm or so, it should match those heads well. Boost will take it from there.

That cam is somewhat large for a TPI type cam but the blower will help make up for it.

 

That's good to hear! Nice to have some affirmation that I'm on the right track lol.

Thanks!

 

Update:

I ordered my Bosch EV14 85lb\hr fuel injectors (will take a few weeks)
I ordered my AutoProm and upgraded to TunerPro RT v5 (arrives tomorrow)
I ordered my Innovate LC-1 WB o2 (ships today)

I'm in touch with Steve at NewEraRaceCraft to finalize and order the cam.

I'm waiting to hear back from Jason at JandJsSpeedShop on the final quote for the heads so I can place my order for those.

I'm waiting for a response back from David Crower on the engine kit/rotating assembly.

I heard back from Lonnies Performance Automotive on the duel fuel pump setup but haven't gotten back to him yet. No hurry on this since the blower won't be until next February.

My current plans are to get my current engine running with code$59, then I'll install the heads, cam, and injectors, and retune. This gives me a few months to perfect the NA tune on the stock bottom end. Then in January after passing smog, I'll rip out the engine and do the rotating assembly and the last of the intake porting along with refreshing the tranny for the new power and choosing a TQ converter. This gives me the next 6 months to get the rotating assembly and all other random parts I need to complete everything. After breaking in the new engine I'll then start fabbing the ICs and order the ProCharger.

Of course all this could change depending on how impatient I get I'm trying to overbuild as much as I can afford so it can give me the power I want without breaking a sweat. I'll still need to replace my rear end until I can really start to push max boost from a stop and head to a drag strip.

 

I've met and talked to Lonnie a few times. He did my fuel system kit from the dual pumps to the feed/return lines for my fuel rails. Very nice kit. A bit pricey but worth it for a quality fuel system. He uses good components. I think you will be happy with it.

 

Right on. I also saw you did an LS1 plastic tank in your build since it had the bigger opening. How did that go removing the emissions stuff? I heard that the LS tanks have the emissions canister integrated but I just want to retain my stock one under hood for the smog ***** when they do their visual and line pinch test. Would I be able to remove all emissions stuff from the LS tank no problem?

 

I dont know for sure. The ls1 ecm controls the evap cansiter so with a thirdgen ecm it wont work. You can still use a thirdgen tank for the dual pump kit. Its just abit more of a pain in the neck. noboostnogo has done that with his build and it looks great.

 

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Any updates? Ever confirm the D1SC is non-CA smog compliant?

I have the CARB EO from my P1SC kit and it doesn't mention the D1.

EO: D-365-3
EO Date: 12/23/2002
Manufacturer Name: Accessible Technologies, Inc.
Device: P600B/P-1SC/P-1SC-1 Supercharger Kit
Device Type: Supercharger System / Supercharger Modification
1985-2001 GM vehicles
Replace stock intake; add fuel management unit; add high-flow fuel pump; add intercooler 14 psi boost

My GTA no longer needs smog either, but it does have most of the components in tact still and the majority of its aftermarket parts are CA legal.