NSR250.net Forums Logo: Honda NSR 250 Forums, Classifieds and Service Manual in English. Covering All Honda NSR 250 MC16, MC18, MC21 and MC28 models
NSR250.net Forums

#
 
#
 
Performance Engineering

  • NSR250 Forums Index ‹ NSR250R Discussion
  • Members Content
  • Members Garage
  • Subscription
  • Transactions
  • FAQ
  • Search
  • Register
  • Log in

Modern fuel for our NSR's


Reply to topic   printer-friendly view
Page 1 of 1   Download Topic





prelude2.2
Site Moderator
Site Moderator
 
Posts: 469
Joined: 20 Feb 2016

Location: Ireland
1996 Honda NSR250 MC28SP
    Send private message View user's profile
    Reply with quote  

Modern fuel for our NSR's

Mon Dec 07, 2020 11:06 pm » Post: #1 » Download Post

Im very curious about this stuff: https://vpracingfuels.com/product/t2/?c=220

Ive thought for years that ethanol destroys our crank bearings (with no solid proof). Does anybody think a fuel like this would help our NSR's or do you think its all a load of hogwash. Has anyone ever used this or something similar?
_________________
John 3:7
Back to top


RobH

 
Posts: 1166
Joined: 24 Feb 2007

Location: Chippenham, Wiltshire, UK
1988 Honda NSR250 MC18
    Send private message View user's profile
    Reply with quote  

Tue Dec 08, 2020 9:43 am » Post: #2 » Download Post

I worked it out to £3.04 per litre, which is twice the price of super unleaded. I see it includes T2 oil for premix, so I assume this is more for track use. If it saves crank seals, which could cost around £600 to rebuild (plus stripping costs), it's probably not a bad option

I have seen some super leaded fuels claiming not to contain ethanol. I was told the blends of fuel change seasonally, so there's no guarantee

There is similar ethanol free fuel in the UK https://classicfuelsolutions.co.uk/product-category/premium-fuel/

I'm not sure how long the fuel can be stored before losing some of the additives

Esso are stating that they don't add ethanol to fuel in some counties in the UK https://www.esso.co.uk/en-gb/fuels-faqs

I have also read that there are plans to increase ethanol in fuel in the future
_________________
Why do things simply when you can complicate them
Back to top


silikesguiness
Supporter - Titanium
Supporter - Titanium
 
Posts: 2495
Joined: 11 Dec 2007

Location: chesterfield
1991 Honda nsr 250 mc21 sp
    Send private message View user's profile Send e-mail MSN Messenger
    Reply with quote  

Tue Dec 08, 2020 12:33 pm » Post: #3 » Download Post

good stuff that VP fuel
_________________
ive seen more tarts than mr kipling
Back to top


ericandchi
Site Moderator
Site Moderator
 
Posts: 316
Joined: 03 Apr 2013

Location: Texas
1994 Honda NSR250 MC28SP
    Send private message View user's profile
    Reply with quote  

Fuel

Tue Dec 08, 2020 12:36 pm » Post: #4 » Download Post

After trying several fuels I settled on VP U4.4. Its leaded and oxygenated. And yes, it makes more power over pump gas. I mix in my own oil at 30 to 1

The T2 is mixed at 40 to 1 which is a bit lean on oil. I've talked with Matt who said they tried different ratios in past only to find 30 to 1 works best.
Back to top


Lesviffer750
Supporter - Titanium
Supporter - Titanium
 
Posts: 1104
Joined: 15 Sep 2009

Location: Hampshire
1992 Honda MC21SE
    Send private message View user's profile
    Reply with quote  

Tue Dec 08, 2020 12:48 pm » Post: #5 » Download Post

Iv'e seen the VP fuel that you mix yourself , I have friends who use it in their RS race bikes with no problems, never seen the pre mixed one though, the only downfall I see with that one is, you cant use your own brand of oil, whereas I use castrol 747 with avgas at 40.1, gotta be worth a try though.
_________________
Proud Father of , 05 ktm 400exc supermoto 2018 honda crf rx supermoto
Back to top


prelude2.2
Site Moderator
Site Moderator
 
Posts: 469
Joined: 20 Feb 2016

Location: Ireland
1996 Honda NSR250 MC28SP
    Send private message View user's profile
    Reply with quote  

Tue Dec 08, 2020 6:43 pm » Post: #6 » Download Post

I will more than likely be running my MC21 premix. Does anyone have any suggestions on what fuel to run? I dont mind paying for it and I use Castrol Fully Synthetic 2T too.
Back to top


Max
Supporter - Titanium
Supporter - Titanium
 
Posts: 367
Joined: 19 Dec 2019

Location: Northamptonshire, UK
    Send private message View user's profile
    Reply with quote  

Wed Dec 09, 2020 12:42 pm » Post: #7 » Download Post

I would use the Esso super-duper stuff as long as you don't buy it from Scotland or Cornwall (or the other counties they list)
Back to top


prelude2.2
Site Moderator
Site Moderator
 
Posts: 469
Joined: 20 Feb 2016

Location: Ireland
1996 Honda NSR250 MC28SP
    Send private message View user's profile
    Reply with quote  

Wed Dec 09, 2020 6:46 pm » Post: #8 » Download Post

I live in Ireland and there is no .ie website. Also there is no Esso near me
Back to top


Lesviffer750
Supporter - Titanium
Supporter - Titanium
 
Posts: 1104
Joined: 15 Sep 2009

Location: Hampshire
1992 Honda MC21SE
    Send private message View user's profile
    Reply with quote  

Thu Dec 10, 2020 9:25 am » Post: #9 » Download Post

Try Shell super if you have any near you, also if you happen to have a small airfield near you, go along with some jerry cans and buy some 100ll avgas off them.
_________________
Proud Father of , 05 ktm 400exc supermoto 2018 honda crf rx supermoto
Back to top


prelude2.2
Site Moderator
Site Moderator
 
Posts: 469
Joined: 20 Feb 2016

Location: Ireland
1996 Honda NSR250 MC28SP
    Send private message View user's profile
    Reply with quote  

Thu Dec 10, 2020 5:16 pm » Post: #10 » Download Post

I do have a small airfield near me. Id imagine id have to change the jets etc if im running avgas?

I dont have have shell stations even remotely near me
Back to top


Lesviffer750
Supporter - Titanium
Supporter - Titanium
 
Posts: 1104
Joined: 15 Sep 2009

Location: Hampshire
1992 Honda MC21SE
    Send private message View user's profile
    Reply with quote  

Thu Dec 10, 2020 8:48 pm » Post: #11 » Download Post

Depends what your using it for and what other mods you will be making, ie; road use, track , pre mix, etc, etc, but as you know we aint allowed to discuss jetting in the general threads.
_________________
Proud Father of , 05 ktm 400exc supermoto 2018 honda crf rx supermoto
Back to top


Andy
Site Admin
 
Posts: 11948
Joined: 19 Jan 2004

Location: Devon, UK
1991 Honda NSR250 MC21
    Send private message View user's profile
    Reply with quote  

Fri Dec 11, 2020 2:43 am » Post: #12 » Download Post

prelude2.2 wrote:
I do have a small airfield near me. Id imagine id have to change the jets etc if im running avgas?

To be pedantic, if jetted optimally, you'd need to rejet if it was cold and damp yesterday, and warm and sunny today!

Absolutely, you will need to rejet for a different class of fuel. I've jetted close enough to worry about using 95 instead of 97/98 before!

Basically, you want to jet for the lowest grade of fuel you're likely to use, never the highest. Using a higher grade of fuel, at worst, gives an element of safety. The difference between AVGAS and U/L however, is extremely significant. It'll still run, but it will be crap. You need to optimise for leaded fuel, and that includes ignition and compression. It's not just about jetting, and you certainly wouldn't want to optimise for AVGAS then find you only have access to unleaded, because that will almost certainly end in catastrophic engine failure.
_________________
Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.


Check us out on Facebook! Please "like" our page!
Back to top


prelude2.2
Site Moderator
Site Moderator
 
Posts: 469
Joined: 20 Feb 2016

Location: Ireland
1996 Honda NSR250 MC28SP
    Send private message View user's profile
    Reply with quote  

Fri Dec 11, 2020 5:51 pm » Post: #13 » Download Post

Yeah I think avgas is out for now. Also Esso and Shell are not anywhere near me in Ireland. So that leaves me with very little options. What do you guys think? I have a topaz near me.
Back to top


Max
Supporter - Titanium
Supporter - Titanium
 
Posts: 367
Joined: 19 Dec 2019

Location: Northamptonshire, UK
    Send private message View user's profile
    Reply with quote  

Fri Dec 11, 2020 8:03 pm » Post: #14 » Download Post

prelude2.2 wrote:Yeah I think avgas is out for now. Also Esso and Shell are not anywhere near me in Ireland. So that leaves me with very little options. What do you guys think? I have a topaz near me.


I would say either:
Top up a jerry can now and again at the nearest Esso (assuming you can be sure they have ethanol free super duper fuel over there)
Buy in some ethanol free mail order petrol if you can get it over the water
Run your bike on Topaz RON 95..you simply won't be worried about it as you will be having so much fun trying to keep your eyeballs inside your lid

Alternatively send me the bike to "look after" for you, promise I'll only use the nice petrol ✋
Back to top


Reply to topic   printer-friendly view
Page 1 of 1   Download Topic

NSR250R Discussion

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum

  • NSR250 Forums Index
  • All times are GMT
Powered by phpBB © 2001, 2005 phpBB Group


Hosted by NSR250dotNET © 2008 NSR250dotNET