Another Blower Install - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jslater · 09-13-2008, 01:35 AM

Pic1. Here's my motor before Weiand 142 install.
Pic2. Engine with Weiand setting on top.

List of build up:
1. Weiand 142
2. Modified Holley 700DP.
Current: HP Main Body, Ported for boost referenced PV
50cc secondary pump,
3. Mallory Max Fire distributor w/ ProMaster Coil
Dist is fully programmable w/ boost retard

Sinister · 09-13-2008, 09:25 AM

That looks phat. What are the specs on the motor?

watahyahknow · 09-13-2008, 10:50 AM

niiiiiice

jslater · 09-13-2008, 04:13 PM

355 SBC, XE-268 Comp Cam, 1.6 roller rockers, stock (ported) heads, 9.0:1,
1 5/8" Doug's headers, 2 1/2" "H" exhaust, Flow Master Mufflers (Super 40's), Edelbrock mechanical fuel pump, 2800-3200 stall, Built TH350 tranny, 3.73 gears w/ Eaton Posi

Should see between 5-5.5psi boost by the calcs I ran.

jslater · 09-19-2008, 09:51 PM

Today I was finally able to finish and take the truck for a drive. I decided to go with Mallory's NEW Maxfire electronic dizzy w/ boost reference. Set initial timing at 16* w/ total at 34*. This dizzy is programmable so I set it retard 1.5*/ # of boost. So drive at part throttle felt great and everything seemed ok. Decided to take it up a bit and BOOM then the engine died. When I opened the hood I found the dizzy cap had blown apart. after talking to Mallory techs they said that this has happened before and the cause was a loose hose connection within the dizzy from the factory and under boost the dizzy pressurized.This really ruined my day.

72BlckButy · 09-19-2008, 09:59 PM

Wow... that looks good!!!

**Yukon Jack** · 09-20-2008, 07:49 AM

Looks pretty impressive. Bet that gave you a real scare when the distributor damage happened!

shortbed70 · 09-20-2008, 03:53 PM

I am also thinking of that blower. Do you have a part# for the dizzy and what pistons does your motor have?

09-13-2008, 01:35 AM	#1
jslater Registered User Join Date: Aug 2008 Location: Lodi, CA Posts: 5	Another Blower Install Pic1. Here's my motor before Weiand 142 install. Pic2. Engine with Weiand setting on top. List of build up: 1. Weiand 142 2. Modified Holley 700DP. Current: HP Main Body, Ported for boost referenced PV 50cc secondary pump, 3. Mallory Max Fire distributor w/ ProMaster Coil Dist is fully programmable w/ boost retard Attached Images Last edited by jslater; 09-13-2008 at 01:53 AM.

09-13-2008, 09:25 AM	#2
Sinister Between Trucks... Join Date: Mar 2002 Location: Los Angeles, CA. Posts: 3,830	Re: Another Blower Install That looks phat. What are the specs on the motor? __________________ Beat it to fit, Paint it to match...

09-13-2008, 10:50 AM	#3
watahyahknow Registered User Join Date: Jul 2006 Location: the netherlands europe Posts: 4,335	Re: Another Blower Install niiiiiice __________________ i got a job again and having fun at it too idea's for the trucks and the order of things to do are taking shape and get closer to being realized , a few more months and i be able to start building for real i complete 2 of the trucks intoo running fashion one custom and one basicly stock the thirth will be sacrificed for parts

09-13-2008, 04:13 PM	#4
jslater Registered User Join Date: Aug 2008 Location: Lodi, CA Posts: 5	Re: Another Blower Install 355 SBC, XE-268 Comp Cam, 1.6 roller rockers, stock (ported) heads, 9.0:1, 1 5/8" Doug's headers, 2 1/2" "H" exhaust, Flow Master Mufflers (Super 40's), Edelbrock mechanical fuel pump, 2800-3200 stall, Built TH350 tranny, 3.73 gears w/ Eaton Posi Should see between 5-5.5psi boost by the calcs I ran. Last edited by jslater; 09-13-2008 at 11:13 PM.

09-19-2008, 09:51 PM	#5
jslater Registered User Join Date: Aug 2008 Location: Lodi, CA Posts: 5	Re: Another Blower Install Today I was finally able to finish and take the truck for a drive. I decided to go with Mallory's NEW Maxfire electronic dizzy w/ boost reference. Set initial timing at 16* w/ total at 34. This dizzy is programmable so I set it retard 1.5/ # of boost. So drive at part throttle felt great and everything seemed ok. Decided to take it up a bit and *BOOM* then the engine died. When I opened the hood I found the dizzy cap had blown apart. after talking to Mallory techs they said that this has happened before and the cause was a loose hose connection within the dizzy from the factory and under boost the dizzy pressurized.This really ruined my day.

09-19-2008, 09:59 PM	#6
72BlckButy Tot Roddin' Join Date: Apr 2005 Location: Mid-MO Posts: 24,461	Re: Another Blower Install Wow... that looks good!!! __________________ -Nate 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package)

09-20-2008, 07:49 AM	#7
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,684	Re: Another Blower Install Looks pretty impressive. Bet that gave you a real scare when the distributor damage happened! __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

09-20-2008, 03:53 PM	#8
shortbed70 Registered User Join Date: Mar 2002 Location: Forney TX Posts: 4,512	Re: Another Blower Install I am also thinking of that blower. Do you have a part# for the dizzy and what pistons does your motor have? __________________ Troy 1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884 Big Red Dog build http://67-72chevytrucks.com/vboard/s...d.php?t=572274

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