LT1-LT4 Modifications 1993-97 Gen II Small Block V8

After 20 years, it's time....

Thread Tools
 
Search this Thread
 
Old 02-10-2016, 08:46 PM
  #21  
TECH Fanatic
iTrader: (1)
 
Vicious95Z28's Avatar
 
Join Date: Jun 2006
Location: Elkton, Va
Posts: 1,831
Received 52 Likes on 47 Posts

Default

Wow man, I'm subscribing, sweet car brother!
Old 02-10-2016, 09:13 PM
  #22  
TECH Addict
 
hrcslam's Avatar
 
Join Date: Dec 2010
Location: Maricopa, AZ
Posts: 2,610
Received 4 Likes on 3 Posts

Default

Subscribed! That is one clean engine. Well, everything except that #8 cylinder. What happened there?
Old 02-10-2016, 09:23 PM
  #23  
TECH Fanatic
iTrader: (1)
 
Vicious95Z28's Avatar
 
Join Date: Jun 2006
Location: Elkton, Va
Posts: 1,831
Received 52 Likes on 47 Posts

Default

Originally Posted by hrcslam
Subscribed! That is one clean engine. Well, everything except that #8 cylinder. What happened there?
Oh, that's easy, lol! Old fuel, boost, rpms, whiskey and total lack of give a damn (hence whiskey). She went lean detonated and popped a piston and scattered a rod, lol! I think I'm in the ball park.
Old 02-10-2016, 09:44 PM
  #24  
TECH Veteran
iTrader: (17)
 
Puck's Avatar
 
Join Date: Oct 2006
Posts: 4,152
Likes: 0
Received 6 Likes on 6 Posts

Default

Looks a hell of a lot better then my car did after sitting for 3 years!!!
Old 02-11-2016, 10:31 AM
  #25  
TECH Addict
iTrader: (13)
 
sweetbmxrider's Avatar
 
Join Date: Sep 2008
Location: jersey shore
Posts: 2,768
Likes: 0
Received 3 Likes on 3 Posts
Default

Excellent destruction, 5 stars, will await shiny parts.
Old 02-11-2016, 11:06 AM
  #26  
TECH Addict
iTrader: (1)
 
ahritchie's Avatar
 
Join Date: May 2010
Location: Charlotte NC
Posts: 2,243
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by Jon@BruteSpeed
And it just hit 6000 miles. That factory engine was a good test bed for EPP & Brutespeed.
Hey that's longer than most stock LT1's handle boost.

Congrats(?) on the new build!
Old 02-11-2016, 11:26 AM
  #27  
TECH Regular
 
96LT1Z's Avatar
 
Join Date: May 2013
Location: Lincoln NE
Posts: 467
Likes: 0
Received 1 Like on 1 Post
Default

The splayed mains look badass
Cleannn car can't wait to see what you bring to the table man!
Old 02-11-2016, 08:46 PM
  #28  
LS1TECH Sponsor
Thread Starter
iTrader: (3)
 
Jon@BruteSpeed's Avatar
 
Join Date: Mar 2006
Location: Under my Formula
Posts: 660
Received 0 Likes on 0 Posts

Default

Originally Posted by Vicious95Z28
Oh, that's easy, lol! Old fuel, boost, rpms, whiskey and total lack of give a damn (hence whiskey). She went lean detonated and popped a piston and scattered a rod, lol! I think I'm in the ball park.
Pretty much spot on.
__________________
95 Pontiac Formula- Stock engine with ATI Procharger, Moser 12 bolt w/4:30 gears, Rossler trans, Neil Chance 4000 stall, M/T ET streets, 10.914@ 121.90mph, 1.452 60ft. GMHTP November 2010 Feature Car. Check it out at:
https://www.motortrend.com/features/...ebird-formula/
http://www.youtube.com/watch?v=abZ1z...ature=youtu.be

Old 02-11-2016, 08:47 PM
  #29  
LS1TECH Sponsor
Thread Starter
iTrader: (3)
 
Jon@BruteSpeed's Avatar
 
Join Date: Mar 2006
Location: Under my Formula
Posts: 660
Received 0 Likes on 0 Posts

Default

Originally Posted by ahritchie
Hey that's longer than most stock LT1's handle boost.

Congrats(?) on the new build!

I'll take the congrats!! It's long overdue.
__________________
95 Pontiac Formula- Stock engine with ATI Procharger, Moser 12 bolt w/4:30 gears, Rossler trans, Neil Chance 4000 stall, M/T ET streets, 10.914@ 121.90mph, 1.452 60ft. GMHTP November 2010 Feature Car. Check it out at:
https://www.motortrend.com/features/...ebird-formula/
http://www.youtube.com/watch?v=abZ1z...ature=youtu.be

Old 02-12-2016, 08:24 AM
  #30  
TECH Enthusiast
iTrader: (4)
 
KLaBZ28's Avatar
 
Join Date: Dec 2008
Location: Haverhill Ma
Posts: 628
Likes: 0
Received 0 Likes on 0 Posts

Default

wow I'm glad to see this car back, I remember seeing it in GMHTP. I thought it had died long ago, I'm in the process of doing a D1SC on my bone stock LT1 engine also and glad to see that I'm not completely insane. Hope it holds up..
Old 02-13-2016, 10:54 AM
  #31  
On The Tree
iTrader: (1)
 
oldschool's Avatar
 
Join Date: Oct 2003
Location: Calgary Alberta
Posts: 171
Likes: 0
Received 0 Likes on 0 Posts

Default

Congrats on the rekindled interest. The same thing happened to me and I'm glad I rebuilt the beast.

And the silver LT1 Formula is truly the nicest body style ever made....keep us updated with your progress...
Old 02-13-2016, 03:37 PM
  #32  
LS1TECH Sponsor
Thread Starter
iTrader: (3)
 
Jon@BruteSpeed's Avatar
 
Join Date: Mar 2006
Location: Under my Formula
Posts: 660
Received 0 Likes on 0 Posts

Default

Originally Posted by oldschool
Congrats on the rekindled interest. The same thing happened to me and I'm glad I rebuilt the beast.

And the silver LT1 Formula is truly the nicest body style ever made....keep us updated with your progress...
Thanks and will do. Pulling the car off the lift this next week so I can pull the rearend and get the 4:30's replaced. The Callies crank is still a month out so it gives me time to get some other stuff done.
__________________
95 Pontiac Formula- Stock engine with ATI Procharger, Moser 12 bolt w/4:30 gears, Rossler trans, Neil Chance 4000 stall, M/T ET streets, 10.914@ 121.90mph, 1.452 60ft. GMHTP November 2010 Feature Car. Check it out at:
https://www.motortrend.com/features/...ebird-formula/
http://www.youtube.com/watch?v=abZ1z...ature=youtu.be

Old 02-13-2016, 05:16 PM
  #33  
TECH Resident
iTrader: (1)
 
Supercharged111's Avatar
 
Join Date: Dec 2015
Location: Colorado Springs, CO
Posts: 905
Received 141 Likes on 108 Posts
Default

You seem like a smart feller. At what point do stock 2 bolt mains become a liability? How much stronger are factory 4 bolt mains (I run one)? How much stronger yet are splayed mains? I just wonder how strong a short skirted block is.
Old 02-13-2016, 06:15 PM
  #34  
10 Second Club
iTrader: (40)
 
BOLO's Avatar
 
Join Date: Nov 2006
Location: Mundelein,Illinois
Posts: 3,180
Likes: 0
Received 2 Likes on 2 Posts

Default

It's nice to know you're rebuilding the LT1. I was in the same situation a few years back, when a pushrod gave out during dyno session. It came to a debate on either building a stroker 383, a 396 LT1, or go to the dark side,....long story short, I'm just about done with my 416 LS3 build! Anyhow, good luck with your new build.
Old 02-14-2016, 08:57 AM
  #35  
LS1TECH Sponsor
Thread Starter
iTrader: (3)
 
Jon@BruteSpeed's Avatar
 
Join Date: Mar 2006
Location: Under my Formula
Posts: 660
Received 0 Likes on 0 Posts

Default

Originally Posted by Supercharged111
You seem like a smart feller. At what point do stock 2 bolt mains become a liability? How much stronger are factory 4 bolt mains (I run one)? How much stronger yet are splayed mains? I just wonder how strong a short skirted block is.
I have seen many 2 bolt blocks produce more than 500 rwhp without any problems. You will not find a consistent answer when the 2 or the factory 4 bolt blocks become a limitation because there are too many variables., i.e., is the crank driving a supercharger, power adder such as a turbo, being punished by nitrous, and what rpm levels will the engine be seeing.

I had no hesitation making over 500 with the P1SC with the factory 2 bolt main block. I have yet to pull the engine down to check the bearings though. For this build however, I plan on making at least 800 out of the back of the engine to get the car consistently in the 9's. When compared to the cost of the crank, rod, and pistons, the splayed main caps is a relatively inexpensive upgrade.

Jon
__________________
95 Pontiac Formula- Stock engine with ATI Procharger, Moser 12 bolt w/4:30 gears, Rossler trans, Neil Chance 4000 stall, M/T ET streets, 10.914@ 121.90mph, 1.452 60ft. GMHTP November 2010 Feature Car. Check it out at:
https://www.motortrend.com/features/...ebird-formula/
http://www.youtube.com/watch?v=abZ1z...ature=youtu.be

Old 02-14-2016, 09:01 AM
  #36  
LS1TECH Sponsor
Thread Starter
iTrader: (3)
 
Jon@BruteSpeed's Avatar
 
Join Date: Mar 2006
Location: Under my Formula
Posts: 660
Received 0 Likes on 0 Posts

Default

Originally Posted by BOLO
It's nice to know you're rebuilding the LT1. I was in the same situation a few years back, when a pushrod gave out during dyno session. It came to a debate on either building a stroker 383, a 396 LT1, or go to the dark side,....long story short, I'm just about done with my 416 LS3 build! Anyhow, good luck with your new build.
Thanks and if I wasn't putting an LS3 in my '77 Trans Am I would probably be going to the dark side on the Formula. Good luck with the 416, keep us updated!
__________________
95 Pontiac Formula- Stock engine with ATI Procharger, Moser 12 bolt w/4:30 gears, Rossler trans, Neil Chance 4000 stall, M/T ET streets, 10.914@ 121.90mph, 1.452 60ft. GMHTP November 2010 Feature Car. Check it out at:
https://www.motortrend.com/features/...ebird-formula/
http://www.youtube.com/watch?v=abZ1z...ature=youtu.be

Old 02-14-2016, 04:23 PM
  #37  
TECH Addict
iTrader: (15)
 
flyinZ's Avatar
 
Join Date: Jun 2002
Location: IL
Posts: 2,642
Likes: 0
Received 0 Likes on 0 Posts

Default

Glad to see it back out, and progress being made. Sharp/clean car!
Old 02-14-2016, 06:29 PM
  #38  
TECH Resident
iTrader: (1)
 
Supercharged111's Avatar
 
Join Date: Dec 2015
Location: Colorado Springs, CO
Posts: 905
Received 141 Likes on 108 Posts
Default

Originally Posted by Jon@BruteSpeed
I have seen many 2 bolt blocks produce more than 500 rwhp without any problems. You will not find a consistent answer when the 2 or the factory 4 bolt blocks become a limitation because there are too many variables., i.e., is the crank driving a supercharger, power adder such as a turbo, being punished by nitrous, and what rpm levels will the engine be seeing.

I had no hesitation making over 500 with the P1SC with the factory 2 bolt main block. I have yet to pull the engine down to check the bearings though. For this build however, I plan on making at least 800 out of the back of the engine to get the car consistently in the 9's. When compared to the cost of the crank, rod, and pistons, the splayed main caps is a relatively inexpensive upgrade.

Jon
I was always under the impression that RPMs are a lot harder on the crank and bearings than boost. Unless you detonate (with boost). My question was aimed more at the RPMs, but I suspect the answer there is as subjective as the RPM limit of the stock valvetrain.
Old 02-14-2016, 07:43 PM
  #39  
Staging Lane
 
Blu06R1's Avatar
 
Join Date: Sep 2007
Location: Sacramento, CA
Posts: 71
Likes: 0
Received 0 Likes on 0 Posts

Default

Subscribed!
Old 02-14-2016, 10:35 PM
  #40  
Moderator
iTrader: (242)
 
JasonShort's Avatar
 
Join Date: Dec 2001
Location: Rochester NY
Posts: 1,810
Received 19 Likes on 17 Posts

Default

Jon, glad to see you back! I've always liked your car


Quick Reply: After 20 years, it's time....



All times are GMT -5. The time now is 07:47 PM.