B18u intake valves

Anadinolin · Aug 28th, 2015, 11:36

Looking to get a set of 4,new,same make valves for my 1996 460.

Planning on doing a head job in the near future whilst engine is being bored (1900cc muthatruckers!)

doingitsideways · Aug 28th, 2015, 12:23

Have you pulled the head then?

Why not just use a 2.0 bottom end?

Afaik, they're the same bar the bore.

Anadinolin · Aug 28th, 2015, 13:10

Ooh, really? I'll try and get a 2.0 then

not pulled the head yet, that will be done in a couple of weeks time. Sourcing parts atm hehe.

doingitsideways · Aug 28th, 2015, 19:46

I think they are anyway.
A little more research probably required than my say so!

Don't forget though that with extra displacement, you'll need more fuel or it'll spend half it's life pinging, leaving you back to square one.

Clan · Aug 28th, 2015, 19:48

Quote:

Originally Posted by doingitsideways

I think they are anyway.
A little more research probably required than my say so!

Don't forget though that with extra displacement, you'll need more fuel or it'll spend half it's life pinging, leaving you back to square one.

The 2.0 is a different block , the stroke is longer , the block is about 1/2 " taller . so cambelt is probably longer too .

doingitsideways · Aug 28th, 2015, 22:36

Ah, my bad.

I always thought that the 1.7s were F2N based and the 1.8/2.0 both based on the F3R.
Must just be the 2.0 then.

Yup, just Wiki'd it.
The B18u and B20F both have the same bore, but different strokes.
Renault designation is F3P for the B18u and F3R for the B20F.

Clan · Aug 29th, 2015, 08:28

Quote:

Originally Posted by doingitsideways

Ah, my bad.

I always thought that the 1.7s were F2N based and the 1.8/2.0 both based on the F3R.
Must just be the 2.0 then.

Yup, just Wiki'd it.
The B18u and B20F both have the same bore, but different strokes.
Renault designation is F3P for the B18u and F3R for the B20F.

did Renault actually use the B20F version themselves?

classicswede · Aug 29th, 2015, 09:13

Yes they did also use the B20F version.

Like you said the block is taller and also uses a longer belt. All the B18 bits will bolt on for swapping it over. I use the B20F in my 340 with all the B172K engine stuff fitted to it

Clan · Aug 29th, 2015, 09:38

Quote:

Originally Posted by classicswede

Yes they did also use the B20F version.

Like you said the block is taller and also uses a longer belt. All the B18 bits will bolt on for swapping it over. I use the B20F in my 340 with all the B172K engine stuff fitted to it

i remember the B20F water pump is different .. How does the 300 go with a B20F ? in the 400 it always seemed almost vicious in it's big torque delivery .. I guess it will outperform a GLT .

classicswede · Aug 29th, 2015, 22:03

Yes went very well. Very free revving with a 2.5" exhaust on it. I did have problems with it causing teh prop to slip back on the spines and never kicked the clutch knowing how weak the prop is.

I was very tempted when a formula Renault Engine came up on ebay. That would have been very interesting

Aug 28th, 2015, 11:36	#1
Anadinolin VOC Member Last Online: Jun 20th, 2022 14:32 Join Date: Oct 2009 Location: Upminster View Photos By: Anadinolin	B18u intake valves Looking to get a set of 4,new,same make valves for my 1996 460. Planning on doing a head job in the near future whilst engine is being bored (1900cc muthatruckers!) __________________ what good music deserves is full deep bass to give it warmth. the stock volvo sub works....just at high volumes Drum n Bass and dubstep

Aug 28th, 2015, 12:23	#2
doingitsideways The Daddy Last Online: Feb 29th, 2024 15:07 Join Date: May 2010 Location: Manchester	Have you pulled the head then? Why not just use a 2.0 bottom end? Afaik, they're the same bar the bore. __________________ XC90 V8 Exec, C70 2.4T Convertible, S70 T5 CD, 850 TDI, 2 x Escort vans and a 2.8i Capri. Clearout has begun, but must continue!

Aug 28th, 2015, 13:10	#3
Anadinolin VOC Member Last Online: Jun 20th, 2022 14:32 Join Date: Oct 2009 Location: Upminster View Photos By: Anadinolin	Ooh, really? I'll try and get a 2.0 then not pulled the head yet, that will be done in a couple of weeks time. Sourcing parts atm hehe. __________________ what good music deserves is full deep bass to give it warmth. the stock volvo sub works....just at high volumes Drum n Bass and dubstep

Aug 28th, 2015, 19:46	#4
doingitsideways The Daddy Last Online: Feb 29th, 2024 15:07 Join Date: May 2010 Location: Manchester	I think they are anyway. A little more research probably required than my say so! Don't forget though that with extra displacement, you'll need more fuel or it'll spend half it's life pinging, leaving you back to square one. __________________ XC90 V8 Exec, C70 2.4T Convertible, S70 T5 CD, 850 TDI, 2 x Escort vans and a 2.8i Capri. Clearout has begun, but must continue!

Aug 28th, 2015, 22:36	#6
doingitsideways The Daddy Last Online: Feb 29th, 2024 15:07 Join Date: May 2010 Location: Manchester	Ah, my bad. I always thought that the 1.7s were F2N based and the 1.8/2.0 both based on the F3R. Must just be the 2.0 then. Yup, just Wiki'd it. The B18u and B20F both have the same bore, but different strokes. Renault designation is F3P for the B18u and F3R for the B20F. __________________ XC90 V8 Exec, C70 2.4T Convertible, S70 T5 CD, 850 TDI, 2 x Escort vans and a 2.8i Capri. Clearout has begun, but must continue!

Aug 29th, 2015, 09:13	#8
classicswede Trader Volvo in my veins Last Online: Yesterday 22:24 Join Date: Dec 2004 Location: Anglesey	Yes they did also use the B20F version. Like you said the block is taller and also uses a longer belt. All the B18 bits will bolt on for swapping it over. I use the B20F in my 340 with all the B172K engine stuff fitted to it __________________ http://www.classicswede.org www.classicswede.co.uk

Aug 29th, 2015, 22:03	#10
classicswede Trader Volvo in my veins Last Online: Yesterday 22:24 Join Date: Dec 2004 Location: Anglesey	Yes went very well. Very free revving with a 2.5" exhaust on it. I did have problems with it causing teh prop to slip back on the spines and never kicked the clutch knowing how weak the prop is. I was very tempted when a formula Renault Engine came up on ebay. That would have been very interesting __________________ http://www.classicswede.org www.classicswede.co.uk

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