The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-23-2017, 12:24 PM   #1
davepl
Registered User
 
davepl's Avatar
 
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
The big orange monster goes on the dyno tomorrow

I'm going to be limited by injector size to maybe 1200hp tops, so I'm hoping for 1000hp. Actually I'll be pleased if it it makes 1000 lb-ft, which is what I'm really shooting for. Wish I had a set of big injectors on hand, but getting it idle nicely with 85# was a challenge already!

It's bolted up to the dyno and we run it tomorrow. Presuming I don't have an impeller in my forehead I'll come back and report how it went. Even one small cheap Chinese part fails (turbo, blow off, multiple bypass valves, etc) and the dyno session will be pointless, but we shall make the attempt nonetheless!
Attached Images
 
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
davepl is offline   Reply With Quote
Old 05-23-2017, 12:34 PM   #2
jessemthompson
Registered User
 
Join Date: Nov 2011
Location: Williamsburg, VA
Posts: 956
Re: The big orange monster goes on the dyno tomorrow

This should be interesting. Good luck with your #s and your Chinese turbos staying in tact.
jessemthompson is offline   Reply With Quote
Old 05-23-2017, 12:37 PM   #3
midniteblues
Registered User
 
midniteblues's Avatar
 
Join Date: Jul 2011
Location: strausstown pa
Posts: 3,394
Re: The big orange monster goes on the dyno tomorrow

That's sweet dave, looking forward too hearing the numbers, good luck, I'll keep my fingers crossed for ya.
__________________
81 camaro 355 4/spd 342 posi my first love.
67 swb step 454/4spd ott 373 posi 4/7 drop.
2000 s10 zr2 little blue truck that never gets stuck.
'74 heald super bronc vt8. tecumseh powered moon rover.
midniteblues is offline   Reply With Quote
Old 05-23-2017, 12:37 PM   #4
FleetsidePaul
R.I.P. E.S.L.L.

 
FleetsidePaul's Avatar
 
Join Date: Aug 2005
Location: Kernville CA./ Lake Isabella CA.
Posts: 11,419
Re: The big orange monster goes on the dyno tomorrow

Wow, that is a monster! I hope it goes well on the dyno. What's it going in?
__________________
1971 Custom C/20

1970 CST 20

1970 C/30 Flatbed

1983 C/30 Dually

2015 Corvette Z51 2021 Corvette Z51 1991 Cadillac Hearse 1982 Cadillac Eldorado Biarritz 2000 Porsche Boxster S 2020 Jeep Gladiator 1973 VW Thing 1973 Plymouth Satellite wagon 1963 Baja Bug 1959 Bug Dune Buggy 1970 Baja Bug 1987 Jaguar XJ 350.

R.I.P. El Jay

R.I.P Jessie.

R.I.P Grumpy.

Every day is a gift from God.
FleetsidePaul is offline   Reply With Quote
Old 05-23-2017, 12:49 PM   #5
davepl
Registered User
 
davepl's Avatar
 
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
Re: The big orange monster goes on the dyno tomorrow

I have no idea what I'll put it in - I've got another restoration I hope to be doing that is of a bone-stock L36 427 car, so it won't be that. Won't fit my blue GMC :-)

So it's really a dyno hero unless and until I find a nice Pro Street 1971 Monte Carlo SS that needs a motor. Those have huge front ends where this would likely fit!
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
davepl is offline   Reply With Quote
Old 05-23-2017, 01:38 PM   #6
toolboxchev
Registered User
 
Join Date: Jul 2015
Location: 2nd left past the stump on a dirt road.
Posts: 2,629
Re: The big orange monster goes on the dyno tomorrow

All I can say is I would hate to be the guy racing against ya! That motor looks like its Honda Hungry!
toolboxchev is offline   Reply With Quote
Old 05-26-2017, 05:05 PM   #7
BossHogg69
motor exploder
 
BossHogg69's Avatar
 
Join Date: Mar 2009
Location: Pittsburgh, PA
Posts: 2,346
Re: The big orange monster goes on the dyno tomorrow

well?
__________________
Adam

1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac
1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's
1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac
2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80
2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac

Use the SEARCH function on this forum - it is your friend!!
BossHogg69 is offline   Reply With Quote
Old 05-26-2017, 06:25 PM   #8
davepl
Registered User
 
davepl's Avatar
 
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
Re: The big orange monster goes on the dyno tomorrow

Bah! The passenger side turbo hemorrhaged oil almost immediately, smoking the valley for mosquitos where the dyno is located. So I had to order a new turbo ($200!) and hope for the best.

I do have a bit of tilt to the turbos but I'd estimate it at 30 degrees.
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
davepl is offline   Reply With Quote
Old 05-26-2017, 11:34 PM   #9
70cst
Senior Member
 
70cst's Avatar
 
Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,339
Re: The big orange monster goes on the dyno tomorrow

Signed on ...
__________________
A husband can be right...or...A husband can be happy.

67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk.

1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc

JOHN 17:3...The better side of "LIFE"


Remember: Everyday is a good day...Some are just gooder!
70cst is offline   Reply With Quote
Old 05-26-2017, 11:55 PM   #10
NaturalSnapple
Registered User
 
NaturalSnapple's Avatar
 
Join Date: May 2017
Location: Raleigh NC
Posts: 34
Re: The big orange monster goes on the dyno tomorrow

Subscribed!
NaturalSnapple is offline   Reply With Quote
Old 07-01-2017, 09:13 PM   #11
Mollzyie
Registered User
 
Mollzyie's Avatar
 
Join Date: Aug 2016
Location: Miami fl
Posts: 289
Re: The big orange monster goes on the dyno tomorrow

Name:  IMG_1072.GIF
Views: 503
Size:  24.5 KB
__________________
M.A.G.A.
Mollzyie is offline   Reply With Quote
Old 07-01-2017, 09:43 PM   #12
toolboxchev
Registered User
 
Join Date: Jul 2015
Location: 2nd left past the stump on a dirt road.
Posts: 2,629
Re: The big orange monster goes on the dyno tomorrow

Quote:
Originally Posted by Mollzyie View Post
Wellp, I don wanna do that!
toolboxchev is offline   Reply With Quote
Old 07-01-2017, 09:51 PM   #13
jjzepplin
Registered User
 
jjzepplin's Avatar
 
Join Date: Feb 2012
Location: Ruskin Florida
Posts: 4,545
Re: The big orange monster goes on the dyno tomorrow

I'm in for big numbers! And well jealousy.
__________________
70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller
72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build
Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350
jjzepplin is offline   Reply With Quote
Old 07-02-2017, 11:52 AM   #14
davepl
Registered User
 
davepl's Avatar
 
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
Re: The big orange monster goes on the dyno tomorrow

It made 1200 lb-ft of torque by 2500rpm and held it for 1000hp!

The fuel pump on the dyno wasn't big/powerful enough and it couldn't maintain fuel pressure so we couldn't do any "hero" runs, this was all super-conservative. You could easily make 1500hp with it as it sat and maybe 2000hp if you optimised things (like had headers that weren't smaller than the exhaust ports, stuff like that!).

The interesting thing to me was that this motor is rated at 500hp, and at 15psi it made 1000hp, which is exactly what you'd expect (one extra atmosphere doubled the power).

Here's a link to the dyno video:
https://youtu.be/IuprWd-WInM?t=20
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
davepl is offline   Reply With Quote
Old 07-02-2017, 12:40 PM   #15
toolboxchev
Registered User
 
Join Date: Jul 2015
Location: 2nd left past the stump on a dirt road.
Posts: 2,629
Re: The big orange monster goes on the dyno tomorrow

Nice! Glad to hear that no major problems occurred and you were able to have a decent run.
toolboxchev is offline   Reply With Quote
Old 07-02-2017, 01:42 PM   #16
davepl
Registered User
 
davepl's Avatar
 
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
Re: The big orange monster goes on the dyno tomorrow

It was actually pretty fun and rewarding... even just seeing it make ANY boost, I knew things were working, because for that to happen, your turbos have to work, the wastegates have to work, the bypass valve has to work... the boost controller has to work, and so on.

Any failure in any of those (cheap eBay) parts would have ruined it, but they all held together!
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
davepl is offline   Reply With Quote
Old 07-02-2017, 01:50 PM   #17
TXBoudy
Registered User
 
TXBoudy's Avatar
 
Join Date: Aug 2016
Location: Southlake, TX
Posts: 181
Re: The big orange monster goes on the dyno tomorrow

Wow! Rockin' that Ebay HP, awesome. lol. Congratulations and thanks for sharing.
__________________
Boudy

Project "Deplorable"

Door Panel Build
TXBoudy is offline   Reply With Quote
Old 07-02-2017, 02:23 PM   #18
Mollzyie
Registered User
 
Mollzyie's Avatar
 
Join Date: Aug 2016
Location: Miami fl
Posts: 289
Re: The big orange monster goes on the dyno tomorrow

Very nice Dave you delivered .... I imagine those kits are still buy at your own risk though .

Name:  IMG_1075.JPG
Views: 304
Size:  33.6 KB
__________________
M.A.G.A.
Mollzyie is offline   Reply With Quote
Old 07-08-2017, 11:20 PM   #19
YoungPup1977
Account Suspended
 
Join Date: Jun 2015
Location: No longer here
Posts: 1,000
Re: The big orange monster goes on the dyno tomorrow

maybe use it for truck pulling....mud drags....sippi holin....all that HP and no where to put it...how much money do you have in the engine ? Just wondering what some thing like that costs a person to build...
YoungPup1977 is offline   Reply With Quote
Old 07-09-2017, 06:57 PM   #20
Coley
Registered User
 
Coley's Avatar
 
Join Date: Oct 2011
Location: Victoria, B.C
Posts: 3,794
Smile Re: The big orange monster goes on the dyno tomorrow

Dave....are you still intending on putting that in your jetski?....make sure to youtube that.

lol

All Good
Coley
__________________
....for some men, there is experience, skill and effort....for the others...there is visa and UPS LOL
1966 Chevy 1/2 ton (Florida- Red/white)
1972 Chevy 1/2 ton (California- Blue/white)
2005 Chevy Silverado HD2500/Duramax
2000 Dodge Ram 1500
Coley is offline   Reply With Quote
Old 07-09-2017, 07:17 PM   #21
Clyde65
1965 Chevy C10, 2005 4.8L/4l60
 
Clyde65's Avatar
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,540
Re: The big orange monster goes on the dyno tomorrow

I'll hold his beer!!
__________________
Clyde65

Rebuild of Clyde
http://67-72chevytrucks.com/vboard/s...84#post8338184

69 Aristocrat Lo Liner build
http://67-72chevytrucks.com/vboard/s...84#post7561684



support our troops!
Clyde65 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:40 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com