Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

Login


Take the time to read our Privacy Policy.

Guest
#1 Posted : Wednesday, 10 November 2004 4:49:15 PM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
Can anyone tell me what the difference is between the XA/XB 351C and the XC 351C motors. From data the XB 351C is rated at 194Kw (non GT) where as the XC 351C is rated at only 160Kw.Why is the power output lower for the XC is it different cam, carby? How can i get my XC351C up to 194Kw the same as the XB model?
Guest
#2 Posted : Wednesday, 10 November 2004 6:05:33 PM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
Pollution gear and lower compression.
Guest
#3 Posted : Wednesday, 10 November 2004 7:58:12 PM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
As brenden says pollution gear (including cam profile)and lower compression.


Also sometime in the 70's they changed the way that horsepower is measured. Earlier they ran the engine without power suckers such as water pump, alternator, air cleane

Guest
#4 Posted : Wednesday, 10 November 2004 8:26:09 PM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
And for what it's worth. 21 years ago when I was an apprentice mechanic one of the fellows that I went to TAFE with had a clean original XB 351GT (it was only 8 or 9 years old then). We put it on the chassis dyno & it pulled a massive 140Hp at the bac
Guest
#5 Posted : Wednesday, 10 November 2004 11:03:01 PM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
And for what it's worth. 21 years ago when I was an apprentice mechanic one of the fellows that I went to TAFE with had a clean original XB 351GT (it was only 8 or 9 years old then). We put it on the chassis dyno & it pulled a massive 140Hp at the bac
Guest
#6 Posted : Thursday, 11 November 2004 6:44:18 AM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
The DIN measure of installed horsepower is used from XC on with 100BHP = 75KW
Guest
#7 Posted : Thursday, 11 November 2004 10:46:43 PM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
Thanks guys. Would you recommend the following. Disconnect the EGR, remove those temperature vacuum switches that are screwed into the block, and run the dizzy vacuum advance straight from ported vacuum at the carby.Will this help?
Guest
#8 Posted : Friday, 12 November 2004 6:16:16 AM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
Hi Peter. I'd be more inclined to make mods that gave a discernible difference in power such as headers and decent exhaust, aftermarket manifold and carb, camshaft. i know this all costs money but i don't think that the changes that you mentioned would ne
Guest
#9 Posted : Friday, 12 November 2004 6:16:37 AM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
Hi Peter. I'd be more inclined to make mods that gave a discernible difference in power such as headers and decent exhaust, aftermarket manifold and carb, camshaft. i know this all costs money but i don't think that the changes that you mentioned would ne
Guest
#10 Posted : Monday, 4 April 2005 6:20:24 AM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
1973-76 xb V8 351 2 engine had 186 kilowatts wit compression ratio of 9.1,xb GT 351 4V egine had 224kilowatts with a compression ratio of 9.1 this was the australian version.the imported 351 xb GT 4V enginehad 224kilowatts and a compression ratio of 11.0.
Users browsing this topic
Guest
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Powered by YAF | YAF © 2003-2024, Yet Another Forum.NET
This page was generated in 0.052 seconds.