Building an 8000 rpm LT1 - LS1LT1 Forum : LT1, LS1, Camaro, Firebird, Trans Am, Engine Tech Forums

Welcome to LS1LT1.com/LS3forums.com - please click here to register...

LS1LT1 Forum : LT1, LS1, Camaro, Firebird, Trans Am, Engine Tech Forums
Presented by:

New User? Register
LS1 Forums Register Photo Gallery Tech/FAQ Members List Calendar Auto Loans Search Today's Posts Mark Forums Read Auto EscrowInsurance
Premium Membership Videos Perf Tools Mobile/iPhone Link to Us! Social Groups Follow LS1LT1 on Twitter


Go Back   LS1LT1 Forum : LT1, LS1, Camaro, Firebird, Trans Am, Engine Tech Forums > Engine Tech > LT1 | LT4 | L99 Engine Tech

LS1LT1.com is the premier Pontiac Forum on the internet. Registered Users do not see the above ads.
Reply
 
Share LinkBack Thread Tools
Old 03-16-2010, 07:41 AM   #1
Regular Member
 
Edward-T's Avatar
 
Join Date: Aug 2008
Location: Weavervill, N.C.
Posts: 1,115
Edward-T user's tech expertise is unknown at this point
Default Building an 8000 rpm LT1

Hey guys i picked up an iron head LT1 out of a Buick Roadmaster i think, not sure of the year yet, i want to build it with forged internals and maybe bore and stroke it a little, first LT1 build so any helpful advice would be nice, i do not have a horsepower range in mind yet as i am just now planning it. i would like to turn about 7500, to 8000 if possible.
__________________
2000 WS6
Edward-T is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Old 03-16-2010, 08:39 AM   #2
Regular Member
 
SlowAss94LT1's Avatar
 
Join Date: Dec 2007
Location: Kouts, IN
Posts: 2,027
My Facebook
SlowAss94LT1 Apprentice Level Tech I
Default

The first thing that came to mind was the rpm restriction with a stock lt1 computer. The max you can have it tuned to is 7200-7250rpm. You're only choice would be a full stand alone engine mangement system. $$$$$
__________________
August 2010 Car of The Month (93 z28)
March 2013 Car of The Month (94 z28)
SlowAss94LT1 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Old 03-16-2010, 08:52 AM   #3
Regular Member
 
Edward-T's Avatar
 
Join Date: Aug 2008
Location: Weavervill, N.C.
Posts: 1,115
Edward-T user's tech expertise is unknown at this point
Default

ok, thats one piece of info i can use, thanks man, any other tips on the internals?
__________________
2000 WS6
Edward-T is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Old 03-16-2010, 09:01 AM   #4
Regular Member
 
SlowAss94LT1's Avatar
 
Join Date: Dec 2007
Location: Kouts, IN
Posts: 2,027
My Facebook
SlowAss94LT1 Apprentice Level Tech I
Default

Use ARP bolts throughout. Get the mains splayed for 4 bolts. the stock crank and rods will do if you want to save some cash.
__________________
August 2010 Car of The Month (93 z28)
March 2013 Car of The Month (94 z28)
SlowAss94LT1 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Old 03-16-2010, 09:18 AM   #5
Regular Member
 
Join Date: Aug 2008
Location: Pennsylvania
Posts: 360
4Mesh Apprentice Level Tech I
Default

Quote:
Originally Posted by SlowAss93LT1 View Post
the stock crank and rods will do if you want to save some cash.
To 8 Grand? Wheww... That's lean'n pretty hard on a lt1 bottom end I'd say.
4Mesh is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Old 03-16-2010, 10:04 AM   #6
Regular Member
 
SlowAss94LT1's Avatar
 
Join Date: Dec 2007
Location: Kouts, IN
Posts: 2,027
My Facebook
SlowAss94LT1 Apprentice Level Tech I
Default

Quote:
Originally Posted by 4Mesh View Post
To 8 Grand? Wheww... That's lean'n pretty hard on a lt1 bottom end I'd say.
He can't go to 8000rpm with the stock computer. It's limited to 7200rpm. I have ARP bolts holding the stock crank and pink rods together. Mine buzzes to 7200rpm quite nicely.
__________________
August 2010 Car of The Month (93 z28)
March 2013 Car of The Month (94 z28)
SlowAss94LT1 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Old 03-16-2010, 10:20 AM   #7
Regular Member
 
Edward-T's Avatar
 
Join Date: Aug 2008
Location: Weavervill, N.C.
Posts: 1,115
Edward-T user's tech expertise is unknown at this point
Default

8 grand was just a number i threw out there, no biggie, i just want to build a bullet proof bottom end! should i keep the iron heads or go alluminum? either way i am going to have them redone.
__________________
2000 WS6
Edward-T is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Old 03-16-2010, 10:23 AM   #8
Regular Member
 
SlowAss94LT1's Avatar
 
Join Date: Dec 2007
Location: Kouts, IN
Posts: 2,027
My Facebook
SlowAss94LT1 Apprentice Level Tech I
Default

Quote:
Originally Posted by Edward-T View Post
8 grand was just a number i threw out there, no biggie, i just want to build a bullet proof bottom end! should i keep the iron heads or go alluminum? either way i am going to have them redone.
Either or... Most of the time iron heads are used for monster nitrous and/or turbo applications.

Callies Crank - Oliver Rods - Diamond pistons = bullet proof/$$$$
__________________
August 2010 Car of The Month (93 z28)
March 2013 Car of The Month (94 z28)
SlowAss94LT1 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Old 03-16-2010, 10:30 AM   #9
I'm watching you....
 
BLK WS6's Avatar
 
Join Date: Sep 2006
Location: Little Rock, AR
Posts: 2,912
BLK WS6 Apprentice Level Tech III
Default

The LT1 tables actually max out at 7000 rpm...but maybe with stock tach or shift extensions it appears more.
__________________

Tuning is for the birds...




BLK WS6 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Old 03-16-2010, 10:47 AM   #10
Regular Member
 
SlowAss94LT1's Avatar
 
Join Date: Dec 2007
Location: Kouts, IN
Posts: 2,027
My Facebook
SlowAss94LT1 Apprentice Level Tech I
Default

Quote:
Originally Posted by BLK WS6 View Post
The LT1 tables actually max out at 7000 rpm...but maybe with stock tach or shift extensions it appears more.
My bad... PCMforless told me it was 7200.
__________________
August 2010 Car of The Month (93 z28)
March 2013 Car of The Month (94 z28)
SlowAss94LT1 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Old 03-16-2010, 10:51 AM   #11
bym
Regular Member
 
bym's Avatar
 
Join Date: Nov 2007
Location: Guatemala
Posts: 1,029
bym Apprentice Level Tech I
Default

well a nice 355 or 350 fully forged build, fully balanced, could handle it deplending on cam and heads choice,
another thing that would help is a spark trigger since the opti could fail pretty easy at those rpms, also another ecu like a mega squirt to go cheap would be nice and easy to hold it down.. making it a map sensored instead of maf will increase high rpm range,
well basically its pretty doable but, not cheap, and also why so many rpms? jmmmm
__________________
Camaro from Guatemala
1996 Camaro Z28 forged 385 A4-, match ported heads and manifold with 3 angle valve job, 52mm custom ported tb, cc503 cam, 1.6 ratio rockers, dual spring valves, lt1 edit, pacesetter long tubes, 3.73 gears, t/a push button, tb bypass, 2.5" true dual exhaust with H, 3k TC, ls1 home made intake, and going in a simple diet
12.22@112mph on nittos 555rīs
bym is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Old 03-16-2010, 10:52 AM   #12
10 Second Opti Club
 
sweetbmxrider's Avatar
 
Join Date: Jun 2009
Location: jersey shore
Posts: 6,335
sweetbmxrider Tradesman Level Tech I
Default

what are you building for? i doubt stock heads and intake will like 7k. you are looking at 10k plus to build this correctly. probably more like 15k with a stout drivetrain.
__________________

Quote:
Originally Posted by ShowNoMercy View Post
this is the internet, take it to seriously and you won't get out alive.
http://www.youtube.com/watch?feature...&v=iPMmW3giQQc
sweetbmxrider is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Old 03-16-2010, 11:00 AM   #13
Regular Member
 
SlowAss94LT1's Avatar
 
Join Date: Dec 2007
Location: Kouts, IN
Posts: 2,027
My Facebook
SlowAss94LT1 Apprentice Level Tech I
Default

Quote:
Originally Posted by sweetbmxrider View Post
you are looking at 10k plus to build this correctly.
Exactly what I was thinking. a fully forged bullet proof motor is around $15k from start to finish.
__________________
August 2010 Car of The Month (93 z28)
March 2013 Car of The Month (94 z28)
SlowAss94LT1 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Old 03-16-2010, 11:13 AM   #14
Regular Member
 
Edward-T's Avatar
 
Join Date: Aug 2008
Location: Weavervill, N.C.
Posts: 1,115
Edward-T user's tech expertise is unknown at this point
Default

just want a groundpounder. it doesnt have to be 8grand, 7 grand is fine, i already turn 63oo on the stock bottom with 146,000 miles with no issues so 7 grand shouldnt be to hard to do, just dont want anything coming lose and breaking. havent really decided yet, still working on that, the old motor was only 200 bucks.
__________________
2000 WS6
Edward-T is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Old 03-16-2010, 04:01 PM   #15
Regular Member
 
Join Date: Dec 2007
Location: The Fiesta City
Posts: 2,139
KW Baraka Apprentice Level Tech III
Default

Quote:
Originally Posted by SlowAss93LT1 View Post
.......Callies Crank - Oliver Rods - Diamond pistons = bullet proof/$$$$
Bares repeating!!!!!

In any case, unless you're going with a solid roller cam/valvetrain, getting the engine to rev that high means you have absolutely no bottom end (low RPM) HP or torque.

KW
__________________
Black 1996 Impala SS, MTI 396ci, Ported AFR 210 Heads,
Competition Cam 236/242 Custom Grind
58mm TB, Clear Image 1 3/4" Quad-1 Headers with 3" Cut-outs, DynoMax 2.5" Cat-back
Yank 3200 stall TC, 4.10 gears
Bryan Herter tuning = 419 rwHP @ 6250 and 450 rwTQ @ 3750
SR 398ci in the works
KW Baraka is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Reply

Bookmarks

Thread Tools

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
Trackbacks are On
Pingbacks are On
Refbacks are On


» Recommended
Find technical articles on a Chevy Corvette, including tips and tricks on a Chevy Camaro and expert advice for Pontiac Firebird, along with reviews on the Cadillac CTS.
» Auto Insurance
» Sponsors
Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 03:45 AM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.5.2
Copyright © 2005 - 2011 by LS1LT1.com

Our Friends:


Illegal Street Racing | Super Cars | LT1 Tech Articles