3.5 V8 max rev limit

J

jamesberry

New Member

Posts

8

• Feb 18, 2010

• #1

Im designing / building a rev counter at uni to go on my 1989 land rover 90. Can anyone tell me what the max rpm is set to on a low compression 3.5 V8 (SU carb type, standard engine)?

The other thing Im not sure about is how powerfull is my v8 as some places I read 114bhp and others 134bhp. From what Ive read at various places it seems that I may have a 134bhp variant as its after 1986. Anyone got any knowledge on this?

 

fanatic

RESPECT IS EARNED, BEATINGS ARE FREE ;-)

Forum Sponsor

Posts

38,813

Location

Various

• Feb 18, 2010

• #2

How To Power Tune Rover V8 Engines Des hammil
Haynes Manual - Tuning Rover V8 Engines
engine number would help

 

norseman

Well-Known Member

Posts

3,279

Location

Essex - UK

• Feb 19, 2010

• #3

jamesberry said:

The other thing Im not sure about is how powerfull is my v8 as some places I read 114bhp and others 134bhp. From what Ive read at various places it seems that I may have a 134bhp variant as its after 1986. Anyone got any knowledge on this?

Click to expand...

As far as I know the 134 brake version was fitted with SU carbs, as opposed to Stomberg's. Other forum members may be able to help with engine serial numbers.

 

vougese39

Well-Known Member

Posts

1,039

• Feb 22, 2010

• #4

134 bhp when new older lucky if you have 100bhp max rpm before power tail off is 5,000 rpm at a push the pistons were only designed to take 6,000 rpm for very short burst before cracking

 

J

jonnyt

Active Member

Posts

213

• Feb 25, 2010

• #5

I'm in the process of reading Des Hammill's book. He seems to indicate that 5000 rpm is the realistic limit for stock parts.

 

vougese39

Well-Known Member

Posts

1,039

• Feb 25, 2010

• #6

trust me mine revs to 6,000 regular and still wants to go but won't push her past that as with most things every engine is like herby the bug never the 2 same are ever built

 

landowner

Pensioner Pete

Full Member

Posts

13,222

Location

WA2

• Feb 25, 2010

• #7

vougese39 said:

trust me mine revs to 6,000 regular and still wants to go but won't push her past that as with most things every engine is like herby the bug never the 2 same are ever built

Click to expand...

kinell, I take mine round to 7k on occaisions, best not then eh Rev counter may be out though but it is over 10 to one and has big valve heads so lookin at 6k plus, does 30 odd in first and over 50 in second on an LT85 box.
I think I'll keep her down to 5 now as I need the engin for a project when I put the diesel in