V8 now to rebuild

V8 now to rebuild

Postby AndyH [OP] » October 25th 2016, 9:20am

I managed to source a 305 TPI motor locally and am about to embark on the rebuild.
I know many of you think (as i once did) why build a 305 instead of a 350 or 383?
Its a simple matter of what is available here in the UK, what parts are available here and in the US.
Doing the research i found the 305 is capable of an easy 370 to 400hp without force feeding it, although i have a very nice Garrett charger under my bench at the moment im resisting using it on the Astro build.
I couldnt afford to go the LS route either, expensive to buy and more so to build, yes its lighter, yes more HP out of the box...but HOW F****G MUCH????? so thats out of the question

Firstly i needed proper sequential injection which the TPI can give me, it can be modified to run LPG with consummate ease which is very important when you consider our gas prices here.
Secondly i wanted external injectors so i could bin the uber **** spider.
Must be older style to mate to my R700 or 4L60E gearbox.

So with the engine bought (very cheap) and only covered 70K miles, she is stripped and off for crack testing and machine work, decking, bearings and line boreing.
I am ordering a set of Trick Flow super 23 175 ally heads from Summit racing, a Comp Cams XM280HR with 0.495/0.502 lift split, a 218/224 duration split and a 112-degree lobe separation angle, usual ARP bolts, Pro Comp roller 1.5 rockers etc.
Im not bothered by Cubic Inches and the search for ultimate power, anything that gives me above 350 usable HP will suit the UK roads well enough, if i go much higher the LPG system will need completely re designing, and i aint gonna do that!!!

I have eventually given up on trying to fix the POS V6 and its constant miss-fire, time to sell it and get some of my money back.

The only thing that isnt 100% clear is if i should stick with the 4L60 or drop in a R700 to dump the electronics.
Original Poster [OP]
AndyH
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: AndyH has been a member for 1 full year
Posts: 124
Topics: 23
Joined: January 2016
Gender: Male
Year: 1996
Van Make/Model: Chevrolet Astro
Extra Info: 2WD V6 Vortec

Re: V8 now to rebuild

Postby WoodButcher » October 25th 2016, 12:37pm

What electronics are you planning to use to control the motor? What did the motor come from originally?
User avatar
WoodButcher
V8 Swap Achievement
V8 Swap Achievement
Firing on 4 Cylinders (L5)
Firing on 4 Cylinders (L5)
Years of Membership: WoodButcher has been a member for 6 full yearsWoodButcher has been a member for 6 full yearsWoodButcher has been a member for 6 full yearsWoodButcher has been a member for 6 full yearsWoodButcher has been a member for 6 full yearsWoodButcher has been a member for 6 full years
Posts: 4485
Topics: 28
Images: 436
Joined: October 2010
Location: Danbury CT
Gender: Male
Alias (AKA): Bruce
Year: 1997
Van Make/Model: GMC Safari
Extra Info: 4.3 RWD

Re: V8 now to rebuild

Postby markmitch » October 25th 2016, 3:13pm

I think you would better off getting an LT1 full roller cam from a junk yard out of a 90's caprice or buick roadmaster but if you already bought the cam then go with it. If you use a 4l60e you can get a stand alone computer to run it or find out if the engine computer can run it.
User avatar
markmitch
AstroSafari Pioneer
AstroSafari Pioneer
Firing on 1 Cylinder (L4)
Firing on 1 Cylinder (L4)
Years of Membership: markmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full years
Posts: 3163
Topics: 430
Images: 5
Joined: March 2008
Location: Valley Springs California
Gender: Male
Alias (AKA): Mitch
Year: 1989
Van Make/Model: Chevrolet Astro
Extra Info: RS 350 TBI

Re: V8 now to rebuild

Postby AndyH [OP] » October 25th 2016, 6:20pm

The motor comes with 2 ECU's however im using a Motec M84. No it wont control the gearbox.
The engine is a roller cam version from a 92 Camaro. After looking at all my choices and doing the extensive research on SuperChevy.com it would seem my choices were pretty spot on as they already built a very similar motor a few years ago.

LT1 was a reverse cooled motor with that god awful distributor arrangement under the front pulley....i hate that design with a pasion, just looks so wrong !!!!

My project is removing the distributor and using LS style coils, 1 per cylinder and true sequential injection for more precise fuelling. Im not going with the MAF sensor either, im going to use the MAP, a CPS and the lower part of the distributor for the CAM sensor.

There are issues with using the GMPP controller (Cost is the main thing @ over $1000 USD) its expensive for what it is. I know there are cheaper ones on the market so ill be looking into those, but with the GB puond to USD rate, the less i buy from the states the better :)
R700 seems a more likely cost effective choice providing it all fits easy enough with few mods, the Motec can supply various speed signals via CAN or hardwire. I need to figure the speed signal out, maybe a speed-healer unit.

Its all falling into place now.
Original Poster [OP]
AndyH
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: AndyH has been a member for 1 full year
Posts: 124
Topics: 23
Joined: January 2016
Gender: Male
Year: 1996
Van Make/Model: Chevrolet Astro
Extra Info: 2WD V6 Vortec

Re: V8 now to rebuild

Postby markmitch » October 25th 2016, 6:24pm

I have a roller cam from a 93 Buick Roadmaster LT1 and it has the gear to use it on older engines and does not use the ignition system from the LT1. Or the reverse cooling system.
User avatar
markmitch
AstroSafari Pioneer
AstroSafari Pioneer
Firing on 1 Cylinder (L4)
Firing on 1 Cylinder (L4)
Years of Membership: markmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full yearsmarkmitch has been a member for 8 full years
Posts: 3163
Topics: 430
Images: 5
Joined: March 2008
Location: Valley Springs California
Gender: Male
Alias (AKA): Mitch
Year: 1989
Van Make/Model: Chevrolet Astro
Extra Info: RS 350 TBI

Re: V8 now to rebuild

Postby AstroWill » October 25th 2016, 6:27pm

IIRC, you should be able to use a TBI computer to control the 4l60e, would probably be your cheapest option.
User avatar
AstroWill
Team Leader
Team Leader
Firing on 6 Cylinders (L5)
Firing on 6 Cylinders (L5)
Years of Membership: AstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full years
Posts: 4638
Topics: 56
Images: 67
Joined: February 2009
Location: Between Chair & Keyboard
Alias (AKA): Richard C., Advocatus Diaboli
Year: 2003
Van Make/Model: Chevrolet Astro
Extra Info: 90TigerGTv8 03AWD

Re: V8 now to rebuild

Postby AndyH [OP] » October 26th 2016, 6:45am

Hi Will, can you give me any more detail on that?

Ta
Original Poster [OP]
AndyH
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: AndyH has been a member for 1 full year
Posts: 124
Topics: 23
Joined: January 2016
Gender: Male
Year: 1996
Van Make/Model: Chevrolet Astro
Extra Info: 2WD V6 Vortec

Re: V8 now to rebuild

Postby AstroWill » October 27th 2016, 1:02am

User avatar
AstroWill
Team Leader
Team Leader
Firing on 6 Cylinders (L5)
Firing on 6 Cylinders (L5)
Years of Membership: AstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full years
Posts: 4638
Topics: 56
Images: 67
Joined: February 2009
Location: Between Chair & Keyboard
Alias (AKA): Richard C., Advocatus Diaboli
Year: 2003
Van Make/Model: Chevrolet Astro
Extra Info: 90TigerGTv8 03AWD

Re: V8 now to rebuild

Postby AndyH [OP] » October 27th 2016, 5:55am

Awesome Will, thanks. Looks like i can do it by piggybacking some of the sensors :)

Now just got to figure out what i need, i should be able to use the standard AC Delco ECM as well :) that just made my day.
Original Poster [OP]
AndyH
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: AndyH has been a member for 1 full year
Posts: 124
Topics: 23
Joined: January 2016
Gender: Male
Year: 1996
Van Make/Model: Chevrolet Astro
Extra Info: 2WD V6 Vortec

Re: V8 now to rebuild

Postby AndyH [OP] » November 10th 2016, 12:22am

UPDATE.

Right so far i have done a fair bit (pics to follow)

The engine is now striped and off for machining, the crank was absolutely immaculate, however its getting a check over and polish at the machine shop.
Block is there and getting a .30 thou re-bore chem clean and decked.

Summit racing now have the following order placed (just waiting for the cam to come in stock before they will ship the whole order)

Trick Flow heads
Crane XM Cam
Crane 1:1.5 solid alloy roller rockers
ARP Head bolt set
Keith Black + 0.30 thou Hypereutectic pistons + rings, no +CC so high compression (11:1) :eek:
New rod and main bearings
Fel Pro TPI manifold gasket set
Fel Pro Engine set bottom end gasket set
Moroso solid fuel pump blank plate
AEM distributor replacement module (you will see why soon) to give cam ref signal
Headman headers
New HC oil pump

Parts already here:

Motec M84 engine ECU with data logger
Motec CDL3 track dash with data logger
Chevrolet 58-2 crank signal trigger kit with new timing chain, sprockets, Modified Vortec timng cover.
Jaguar XJ220 race fuel injectors.
Aeromotive HP HC fuel pump
Aeromotive adjustable fuel pressure regulator
New 3" I/O SS hi flow Cat from the same XJ220 race car spares kit (great when you work for Jaguar design) :banana:
R700 gearbox from the same donor as the engine (1990 Camaro TPI) with less than 30K on it. Im going to rebuild it to 650+ HP spec....so i dont bust the bloody thing when im acting the muppet :dance:
JEGS V8 conversion engine mounts
Wiring kit for the motor.

Yet to order:
LS coil packs x 8
Patriot Side pipe kit.
58mm throttle body kit.

Yep, its not a big cubic inch build, but its still a 400 HP motor (Superchevy built one similar to it without the fuel injection and got 395) so im expecting 400-430 with the modded fuel system and ignition.

As the parts arrive from the machine shop i will start taking pictures during the build.
Original Poster [OP]
AndyH
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: AndyH has been a member for 1 full year
Posts: 124
Topics: 23
Joined: January 2016
Gender: Male
Year: 1996
Van Make/Model: Chevrolet Astro
Extra Info: 2WD V6 Vortec

Re: V8 now to rebuild

Postby AstroWill » November 10th 2016, 1:15am

Sounds like an awesome project! Can't wait to see it all come together.
User avatar
AstroWill
Team Leader
Team Leader
Firing on 6 Cylinders (L5)
Firing on 6 Cylinders (L5)
Years of Membership: AstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full years
Posts: 4638
Topics: 56
Images: 67
Joined: February 2009
Location: Between Chair & Keyboard
Alias (AKA): Richard C., Advocatus Diaboli
Year: 2003
Van Make/Model: Chevrolet Astro
Extra Info: 90TigerGTv8 03AWD

Re: V8 now to rebuild

Postby AndyH [OP] » November 11th 2016, 8:51am

LS Coil set now sourced and on its way :) no Chinese copy crap for me :banana:
Original Poster [OP]
AndyH
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: AndyH has been a member for 1 full year
Posts: 124
Topics: 23
Joined: January 2016
Gender: Male
Year: 1996
Van Make/Model: Chevrolet Astro
Extra Info: 2WD V6 Vortec

Re: V8 now to rebuild

Postby AndyH [OP] » November 13th 2016, 3:21am

Today was the real start of the build, trying to figure our how to modify the fuel rails on the TPI inlet system.

The problem is that the original fuel lines run from the front of the engine on the F body cars (mine came from a 88 Camaro)
Several problems with the original design are:

Wrong fuel injectors for a high performance build as they are way too small flow rate.
Wrong flow and return connection point
Pressure regulator aint up to the job and is non adjustable.

So i think i have a solution, use an Aeromotive adjustable regulator, fit larger race injectors from a Jaguar XJ220 race car, and re-plumb the manifold using Earls connectors.

Here is some of the work so far:

You can just see on the front rail, i have machined in a blank to block off the original inlet port.

20161112_160818.jpg


This is where im thinking of putting the FPR, as im not using the distributor per-se (im fitting a sensor unit for CPS) so there is a bit more room on the back of the motor.

20161112_160841.jpg
Original Poster [OP]
AndyH
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: AndyH has been a member for 1 full year
Posts: 124
Topics: 23
Joined: January 2016
Gender: Male
Year: 1996
Van Make/Model: Chevrolet Astro
Extra Info: 2WD V6 Vortec

Re: V8 now to rebuild

Postby TurnNburn » November 13th 2016, 7:23am

Whoa...
2000 Astro- 7'' lift, NP233C 4x4 T-case, 31x10.5x15 A/T, ongoing camperization in progress
"If you wont drink a beer with me then we probably cant be friends"
Build thread- viewtopic.php?t=103066
User avatar
TurnNburn
Firing on 7 Cylinders (L1)
Firing on 7 Cylinders (L1)
Posts: 723
Topics: 5
Images: 0
Joined: April 2016
Location: Bend, Or
Gender: Male
Alias (AKA): My friends call me fluffy
Year: 2000
Van Make/Model: Chevrolet Astro
Extra Info: 4x4 Overlander

Re: V8 now to rebuild

Postby AndyH [OP] » November 13th 2016, 7:07pm

A bit of a strange day today (still twiddling the thumbs waiting for my order to be delivered from Summit) another week before it arrives :(

So i thought i would power up the Motec electronics, dash and ECU to start the config files, set parameters for electric water pump, air con, idle control etc etc, and to make sure my laptop can communicate with all the good shizzle :)
I also started work on the dash panel to mount the Motec display.

Here are some pics:

ECU fired up on power supply and talking via CAN :banana:

20161113_174538.jpg


20161113_174622.jpg


Dash now talking to ECU :dance:

20161113_015307.jpg
Original Poster [OP]
AndyH
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: AndyH has been a member for 1 full year
Posts: 124
Topics: 23
Joined: January 2016
Gender: Male
Year: 1996
Van Make/Model: Chevrolet Astro
Extra Info: 2WD V6 Vortec

Re: V8 now to rebuild

Postby AndyH [OP] » November 13th 2016, 7:14pm

Mods, can you move this to the *projects / builds* section for me.

Ta
Original Poster [OP]
AndyH
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: AndyH has been a member for 1 full year
Posts: 124
Topics: 23
Joined: January 2016
Gender: Male
Year: 1996
Van Make/Model: Chevrolet Astro
Extra Info: 2WD V6 Vortec

Re: V8 now to rebuild

Postby AndyH [OP] » November 17th 2016, 6:39pm

KIN YEAH BABY.

My Summit order (or part of) arrived today....im frothing at the mouth mmmmmmmmmmmm goodies :)

15109543_10209916665525942_226513096650001944_n.jpg


15134756_10209916751248085_1662661639989239265_n.jpg


15095058_10209916666805974_2139079254726979588_n.jpg


15073331_10209916669286036_2181357154991755040_n.jpg
Original Poster [OP]
AndyH
Firing on 1 Cylinder (L1)
Firing on 1 Cylinder (L1)
Years of Membership: AndyH has been a member for 1 full year
Posts: 124
Topics: 23
Joined: January 2016
Gender: Male
Year: 1996
Van Make/Model: Chevrolet Astro
Extra Info: 2WD V6 Vortec

Re: V8 now to rebuild

Postby chevymaher » November 17th 2016, 7:07pm

Oh yea baby! I am excited and it isn't even my toys.
User avatar
chevymaher
Team Leader
Team Leader
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: chevymaher has been a member for 6 full yearschevymaher has been a member for 6 full yearschevymaher has been a member for 6 full yearschevymaher has been a member for 6 full yearschevymaher has been a member for 6 full yearschevymaher has been a member for 6 full years
Posts: 12986
Topics: 81
Images: 94
Joined: November 2010
Gender: Male
Alias (AKA): chevymaher
Year: 1994
Van Make/Model: GMC Safari
Extra Info: SLE RWD Mercruiser

Re: V8 now to rebuild

Postby icebrrg3rd » November 17th 2016, 7:07pm

WOW! Christmas came early for you. Must have been a good boy...

-Andrew
81 Yamaha Maxim 650XJ 650cc, 67k mi
83 Yamaha Venture 1300cc, 91k mi
91 Chevy Astro 5.7L 5-speed, Ford 9", 250k mi
02 Chrysler Sebring Conv. 2.7L 5-speed, 181k mi
10 Chrysler Town & Country 3.8L, 128k mi
User avatar
icebrrg3rd
V8 Swap Achievement
V8 Swap Achievement
Firing on 8 Cylinders (L2)
Firing on 8 Cylinders (L2)
Years of Membership: icebrrg3rd has been a member for 7 full yearsicebrrg3rd has been a member for 7 full yearsicebrrg3rd has been a member for 7 full yearsicebrrg3rd has been a member for 7 full yearsicebrrg3rd has been a member for 7 full yearsicebrrg3rd has been a member for 7 full yearsicebrrg3rd has been a member for 7 full years
Posts: 1914
Topics: 43
Images: 1
Joined: October 2009
Location: Milwaukee, WI
Gender: Male
Alias (AKA): Andrew
Year: 1991
Van Make/Model: Chevrolet Astro
Extra Info: V-8 5-sp RWD Shorty

Re: V8 now to rebuild

Postby AstroWill » November 17th 2016, 7:39pm

Heck yea, let the building commence, soon.
User avatar
AstroWill
Team Leader
Team Leader
Firing on 6 Cylinders (L5)
Firing on 6 Cylinders (L5)
Years of Membership: AstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full yearsAstroWill has been a member for 8 full years
Posts: 4638
Topics: 56
Images: 67
Joined: February 2009
Location: Between Chair & Keyboard
Alias (AKA): Richard C., Advocatus Diaboli
Year: 2003
Van Make/Model: Chevrolet Astro
Extra Info: 90TigerGTv8 03AWD

Next

 
  • Related topics
    Replies
    Views
    Last post

Return to V8 Swap

It is currently February 26th 2017, 8:39am

V8 Swap Forum
Swapping A V8 Engine Into An Astro/Safari Van, 8-Cyclinder Upgrade, V8 Conversion, Power Increase, V6 to V8.
Moderator: chevy57bert
To create a new topic in V8 Swap, click this button:
Previous topic Next topic
Recent Image Attachments
Attached by:
Attached by: codydaniels
codydaniels
in V8 Swap
Views: 2617
Comments: 77
Date: Feb 23 '17
Time: 1:43am
» Read last comment
Attached by:
Rinny
in V8 Swap
Views: 1308
Comments: 58
Date: Feb 15 '17
Time: 1:40am
» Read last comment
Attached by:
Rinny
in V8 Swap
Views: 1308
Comments: 58
Date: Feb 15 '17
Time: 1:32am
» Read last comment
Attached by:
Attached by: codydaniels
codydaniels
in V8 Swap
Views: 160
Comments: 11
Date: Feb 12 '17
Time: 2:55am
» Read last comment
Attached by:
Attached by: AstroWill
AstroWill
in V8 Swap
Views: 1613
Comments: 102
Date: Feb 11 '17
Time: 9:39am
» Read last comment
Sponsors
 

Who is online

Users browsing this forum: No registered users and 1 guest