Iron block for auto-x/road course? - LS1TECH

Go Back   LS1TECH > RACING DEPARTMENT > Road Racing
Sign in using an external account
Register Forgot Password?
Search


Road Racing
Road Course | Autocross


Iron block for auto-x/road course?

Reply
 
Thread Tools Search this Thread
Old 07-24-2011, 11:25 PM   #1
TECH Fanatic
 
BlueBird346's Avatar
 
Trader Rating: 13
Join Date: Nov 2007
Location: Oxford, AL
Posts: 1,681
Default Iron block for auto-x/road course?

Well, I have a dilemma. Im getting ready to build my engine, a forged 347. I havent bought the pistons/rods yet, and I can get a LQ block for pretty cheap. So ive been debating doing a 370 instead.

Just wondering how much the extra 100lbs on the nose of the car will affect the handling. Im still leaning towards the 347, but the extra cubes would be nice.

Any input on this?
__________________
1999 Pontiac Firebird Formula
Tick 231/235, LS6 heads, FAST 90, TSP 1-7/8" LT, ORY, Strano/Bilstein/UMI, Monster 2/18lb fly,Tick master, Nitto NT05
Tuned by Hinson Supercars-456rwhp/418rwtq

2000 Toyota Tundra-DD
BlueBird346 is offline   Reply With Quote
Old 07-25-2011, 03:37 PM   #2
TECH Addict
 
SIK02SS's Avatar
 
Trader Rating: 11
Join Date: Feb 2005
Location: Brunswick, GA
Posts: 2,196
Send a message via AIM to SIK02SS
Default

If you're serious about road course HPDE and auto-x, you don't want the extra weight
__________________
-1967 Camaro SS
-2002 Camaro SS
-2011 Golf TDI

Owner
- Interstate All Battery Center of Brunswick and Savannah, GA -
SIK02SS is offline   Reply With Quote
Old 07-25-2011, 04:55 PM   #3
On The Tree
 
garcr4's Avatar
 
Trader Rating: 1
Join Date: Jan 2009
Location: Deland, Fl
Posts: 161
Default

Quote:
Originally Posted by SIK02SS View Post
If you're serious about road course HPDE and auto-x, you don't want the extra weight
I agree the extra cubes will likely not make up for the extra 100# on the nose.
On a 2.5 mile road course I believe the lighter car would have a 1 to 1.5 second advantage.

You have to accelerate, turn and stop the extra weight. Everything else being pretty much equal except the cubes, I think the alum block wins.
garcr4 is offline   Reply With Quote
Old 07-25-2011, 04:55 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Benefits of 347 or 383 short block over stock rebuild? CubanGT Generation III Internal Engine 13 01-16-2015 01:16 PM
347 vs 370 differance speedfreak2685 Forced Induction 7 06-26-2014 08:37 PM
'88 Supra Turbo LR4 swap BW S472 msimsi10 Conversions & Hybrids 53 02-06-2014 05:53 PM
347 with '99 LS1 block, what bore? BlueBird346 Generation III Internal Engine 9 02-28-2013 08:04 PM
346 vs 347.. someone school me inside 98TAauto Generation III Internal Engine 14 02-10-2005 02:10 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are On
Refbacks are Off


 

All times are GMT -5. The time now is 10:25 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details