| Author | Topic |
|---|
Location:
Ballarat
Registered:
September 2003
|
|
2tg and solexs vs webers
|
Tue, 17 February 2004 08:06
|
 |
allright, i just need to know....
i have twin solexs on my 2tg at the moment, they are 40's, and i am looking to make my little car as quick as possible. so, what i want to know is, will i notice the effect of 45 webers? will they add a considerable amount of power over the 40's? i am not so much asking what brand would you prefer, as it sounds as tho solexs are quite credible if tuned correctly, i just need to know if the bigger 45's will give me a healthy/worthwhile power increase.
any information would be great. i tend to have trouble getting info on this topic for some reason 
|
|
|
Location:
Ballarat, Victoria
Registered:
March 2003
|
|
Re: 2tg and solexs vs webers
|
Tue, 17 February 2004 08:14
|
|
attach your petrol tank to the side of the 2tg, that way you will get max fuel possible. 
|
|
|
Location:
melbourne
Registered:
November 2003
|
|
Re: 2tg and solexs vs webers
|
Tue, 17 February 2004 08:35
|
|
|
yeah id be interested in the response, pondering the same question for my motor at the moment.
|
|
|
Location:
Melbourne
Registered:
August 2003
|
|
Re: 2tg and solexs vs webers
|
Tue, 17 February 2004 09:24
|
|
My personal belief is that you'll only notice a significant gain if you tune/develop a motor to the point that the total intake charge demand approaches the flow available from 40mm throats. I'd think a substantial amount of work would need to be undertaken to reach that point.
At 88.5/78, 11:1, with huge lift and high RPM, perhaps you could justify 45 or even 48 DCOEs. On a relatively mild 85/78 2TG, 292 degrees and 10.5:1, I'd think the gains would be negligable and the money spent on upgrading could achieve greater bang for buck elsewhere, perhaps in an overbore and 88.5 forged pistons.
|
|
|
Location:
Newcastle
Registered:
April 2003
|
|
Re: 2tg and solexs vs webers
|
Fri, 20 February 2004 10:48
|
|
Go the webbers.
IMO they are far better and you will notice the difference esp if you port the head and manifold to match.
Did this to the 18RG and it now has a lot more go.Everything else is std save for what i mentioned above.
If you have aftermarket cams or anything else done to the motor then the webbers will really let it breathe much better.
Just my 2c on the matter.
|
|
|
Club Member
Location:
sydney
Registered:
May 2002
|
|
Re: 2tg and solexs vs webers
|
Fri, 20 February 2004 21:36
|
|
there are as many opinions as ive had hot dinners on this question. SSI has got it bang on though, theres no point even consdiering going to a bigger carb until you have completey out fuelled the 40mm ( and considering the number of jetting and emulsion possibilities ill doubt youll ever do it with that engine. In fact my own opinion would be that the 40mm throat will be better for you especially if you goto a bigger cam as the speed of the intake charge is greater than the 45mm.
In terms of Weber Vs Solex.... theres not much in it, both carbs if tuned properly will stay in tune for a reasonable length of time. Weber has cheaper and more readily available parts but solex arent exactly hard to find either.. in fact most bike carbs have jets to suit your needs. Toyota "used to" rate the solex as the better carb and infact they still use the slide type carbs on some of there engines now
|
|
|
Location:
nth ringwood, Victoria
Registered:
August 2002
|
|
Re: 2tg and solexs vs webers
|
Fri, 20 February 2004 21:50
|
|
|
stay with the solexes you can change jets easy and the 2tg had a lot of varibles 1st 1 had 30mm chokes the 2nd had 32mm chokes and last had 36mm chokes mains were 125 ,135 135 airs were 150 ,150 `150 pumps were 52.5 then 55 and last 57.5 ,venturis were the same through out this was with 9.8 to 1 comp pistons different heads and valve sizes
|
|
|
Location:
Ballarat
Registered:
September 2003
|
|
Re: 2tg and solexs vs webers
|
Mon, 23 February 2004 10:06
|
|
ok i will. how do i go about knowing what chokes to put in, what jets etc etc. will a kit cover these items?...then again, how do i know what kit to get...
how often should u get ur carbies retuned?
|
|
|
Location:
Melbourne
Registered:
August 2003
|
|
Re: 2tg and solexs vs webers
|
Mon, 23 February 2004 10:16
|
|
| Quote: |
ok i will. how do i go about knowing what chokes to put in, what jets etc etc.
|
The domain of a tuner with a dyno and a lambda (exhaust scope). An experienced builder could probably guess pretty close.
| Quote: |
will a kit cover these items
|
'Kit' for carburettors generally is reconditioning kit, so new seals etc. to restore carburettors to operating tolerances, not change their operating specs.
| Quote: |
how often should u get ur carbies retuned?
|
Basically, if it's running lousy or seems to be getting perceptably worse over time, you could get it looked at. How long that might take, I've no idea.
|
|
|
Location:
Ballarat
Registered:
September 2003
|
|
Re: 2tg and solexs vs webers
|
Mon, 23 February 2004 10:30
|
|
are we talking big time tuners? that is, would i find a person who could do it in little ol' ballarat? if not, recommend anyone in victoria?
so, before i look at rejetting and changing chokes and stuff..should i get it professionally tested? or is there a kind of common setup people go with with the solex 40's?
since i have rebuilt my entire motor, would it be wise to rekit my solexs regardless of how it goes; just like a service? how much are carbi kits round about?
|
|
|
Location:
Melbourne
Registered:
August 2003
|
|
Re: 2tg and solexs vs webers
|
Mon, 23 February 2004 22:35
|
|
| Quote: |
are we talking big time tuners? that is, would i find a person who could do it in little ol' ballarat? if not, recommend anyone in victoria?
|
You'd just need to find someone experienced with carburettors that keeps a stock of Solex jets. You could try Sean Maloney, he jetted my Solexes and dialled them in without a dyno, bun you'd want a dyno analysis for best results.
Try Stu (Classique71), I'm sure he knows someone in Ballarat or surrounds who is knowledgeable with these motors as he lives in Colac and had work on his done out there somewhere.
| Quote: |
since i have rebuilt my entire motor, would it be wise to rekit my solexs regardless of how it goes; just like a service? how much are carbi kits round about?
|
Well, I guess you'd have peace of mind, your carburettors would be renewed. If they're in good order now though it might not be money you need to spend. Not sure of cost, have to find them first!
|
|
|
