View Full Version : What Gains?
sTuDeNt
13-11-04, 07:52 PM
What gains am I looking at with the following mods?
Weber 32/34, 1.4SR cam, K&N filter, 4-1 exhaust.
All on 1.2 engine with 55bhd at standart!
Philsutton
13-11-04, 07:57 PM
its not going to be massive gains, i'd have thought realistically you get about 8bhp
sTuDeNt
13-11-04, 08:08 PM
NO WAY 8bhp! :evil: :evil: :evil:
student, i fink you'll find phill mite be rite. :|
give him the benifit of the doubt, say 12Bhp max :?
sTuDeNt
13-11-04, 08:25 PM
Right... Thats nice to know.... :evil: :lol:
Oh well! Never mind! :lol:
Philsutton
13-11-04, 08:28 PM
8bhp is about a 15% increase in power, its only a rough idea but your not going to be looking at much more of an increase for a carb an cam, plus the cam isnt really an after market one so isnt going to increase things that much.
The 32/34 webber will be a lot more reliable then the standard carb though
mite not sound mutch, but dont forget ur in a car that doesnt exactly weight much??
yeh as above.
also dont forget how much nicer your car feels (faster etc) after its had just its air filter cleaned for instance (maybe 1bhp gain)...you will definately be able to feel a difference mate...dont worry too much!
Snowface
15-11-04, 05:55 PM
with those mods you should see 65-70bhp. maybe a bit more.
Make sure you use the 1.2 head though.
DrivingSpanner
15-11-04, 07:09 PM
15% is quite a large gain, if you tried to get a 15% gain on an XE think how much you would have to spend,
Philsutton
15-11-04, 07:12 PM
?200? all i have in my xe is a set of cams an a lighten fly wheel which cost me ?200 an i made 140bhp at the wheels
DrivingSpanner
15-11-04, 07:38 PM
oops silly me, but for what he must have spent to put that stuff on it is a damn good gain
with those mods you should see 65-70bhp. maybe a bit more.
Make sure you use the 1.2 head though.
i might be rong but im 99.9% sure he would have a 1.2 head on his 1.2 :wink:
DrivingSpanner
15-11-04, 07:50 PM
with those mods you should see 65-70bhp. maybe a bit more.
Make sure you use the 1.2 head though.
i might be rong but im 99.9% sure he would have a 1.2 head on his 1.2 :wink:
well i would hope so anyway otherwise the CR would be really pooh
10-15% possibly, if the engine was in minty minty rebuilt condition, with bore/crank wear and an unworkled head. about 10% MAX
hmm id cry if i managed 10%
im aiming for a 100% increase lol
DrivingSpanner
16-11-04, 08:46 AM
hmm id cry if i managed 10%
im aiming for a 100% increase lol
so that'll be about 22 bhp total then !!!!
just enough to pull the skin off a rice pudding!!!
Finally somwone who agrees with me, or just has got extremely pis.sed off with the amount of 1.2 performance crap on here.
Thanks spanner
22bhp would be a 50% increase lol
100bhp is a 100% increase, ie double ;)
and yes tuning a 1.2 is more or less pointless and futile unless your doing it for a very very silly reason. otherwise just bide your time and wait till you can afford to drop a 1.4 minimum in there.
i dont see a problem with tinkering with your 1.2 its good to start on then as your insurance gets cheaper you can go for a bigger lump.
Yeah I suppose it gives you something to do, but then you could get a bigger lump and start working on it for the future when insurance is less.
(Can I get my old account activated while you are watching the post Camb??)
storage may be an issue for some. so there are plenty of reasons to want to mod a 1.2
storage may be an issue for some. so there are plenty of reasons to want to mod a 1.2
I have storage issues-i want to be stripping and re-building a gte engine but have no room to do it :cry: So i'm waiting for the spring/summer to come around and i'll buy a cheap gte and take bits off the engine as and when. Storage is a pain in the arse :evil:
As for the 1.2 tuning dilema, i would say tinkering is great and makes you learn a lot, but spending loads of money on a 1.2 is a waste and you'd be better off saving that money.
storage is not an issue for me :D motivation is. i never fiddled around with my old 1.2 because i never had the money...i dont see it as so much of a waste as most parts can be purchased second hand..any way just my view ill butt out now :lol:
lol all you people who put valvers in your cars to embarres (sp) bigger cars lol what do you think camb is doin how funny would it be to waste a VTR saxo in a 1.2 nova lol hes doin it to prove a ponit lol it can be done ,even if it not the cheapest or easiest way :D
sTuDeNt
16-11-04, 03:30 PM
Yeah! I agree to kill VTR in 1.2 would be a lough!
As per what you said Camb, the engine is a minterits done just over 30k from factory and everything is in order as it should be!
How good is the idea of boring out and replacing valves for larger once (think Astra GTE?)...
DrivingSpanner
16-11-04, 04:00 PM
not really worth the hasle or cost, what camb is doing is building a 1.2 to prove that it can be done, costs a lot of money tho, been there done that before,
Still waiting for some pics tho cambridge...
we had nova 1.6 valves cut in (but had to have special ones sourced as the 1.6 valves have a longer stem) and that cost just shy of ?300!!!!!! and tahts without the blending head work either. incidently 20xe inlet valves are the same size as the 1.2/1.3/1.4 inlet valves lol
the bottom end cost about ?800 i think and then you have the cam kit and otehr parts so it most definately isnt cheap to do what im planning, but its fun and silly which is fine.
as for pics, what do you want? i have none of the engine and no pics that show any progress. afterall a nova is a nova at the end of the day. just my "trick" suspension that you have pics of
DrivingSpanner
16-11-04, 05:27 PM
just my "trick" suspension that you have pics of
yeap and i am still waiting for the dimentions so i can send you the CAD Drawing of the mount.... Time is ticking, i cant work it out myself because i dont have a standard one to take the pickup point off
i wont be able to get a mount till a week sunday lol.
and then i ave to find time to basic cad it up, and before that i have to get an OS taht will run nicely lmao
and the BAF isnt critical
sTuDeNt
16-11-04, 06:10 PM
Cambridge are you actually going to do it?
It will be a lot of money, but if you have lots to spare... can always help me. :lol:
What fuel feed system are you planning to have?
BTW guys will twin 45DCOE fit nova?
Get 40's not 45's (these tend to be fitted to engines that are at least 1.8.
If you want to go quicker then remove the back seat + parcel shelf and carpet, that'll save u quite a few kgs, bearing in mind your car only weighs around 760kgs anyway!
BTW the 40 route is not a cheap option although it may seem it as the carbs themselves are usually around ?100 it all adds up with the parts that go with it, prob looking around ?200-?400 (depending on other s/h parts) fitted (by yourself) + a rolling road tune
gunzi
Yeah! I agree to kill VTR in 1.2 would be a lough!
Yes it would be extremely satisfying to you but the guy in the saxo will prob just be thinking , "ere mate he's abit quick in ee?!", so personally i think it wouldn't actually feel that great overall, sorry
nathan.
16-11-04, 09:52 PM
novas weigh around 850kg standard depending on trim and engines. you can easily strip the cars interior to save weight and get it down to 760ish. it would defo have quicker acceleration. and power to weight ratio with a tuned engine could be on parr with a VTR. anyone know what a saxo weighs.
nath
850kg is sounds like the weight of the GTe/GSi. Lower spec cars weigh less. The basic 1.2 is the lightest of all novas, around 750 to start off with i think (ballpark figure) so stripping as much weight from it as possible will be your best bet to increase acceleration.
Personnaly I can't wait to see Cambs car. I think a lot of you will be shocked at what he's going to achieve ;)
Jim
nathan.
16-11-04, 10:47 PM
yeah it would be good to see it when its done.
unsure of all weights etc. but 1.0ltrs and 1.2s would weigh less anyway because theres less trim, 4 speed boxes etc.
i saved 80 kg from my sr now weighs 780kg.
nath
is that including your cage?
yes its going to be done, its being done, slowly but surely. the project is on hold for now to save funds up for a big surge on it in the new year.
nathan.
16-11-04, 11:17 PM
yeah mate thats with cage in. 780.
forgot to mention before, i had my sound system in before it was stripped. so that obviously weighed quite a bit.
seats are very light and i have a fiberglass boot.
dunno what mine weigh's i'll have it checked when i get some plastic windows and ally door cards
Snowface
17-11-04, 10:10 AM
yeah it would be good to see it when its done.
unsure of all weights etc. but 1.0ltrs and 1.2s would weigh less anyway because theres less trim, 4 speed boxes etc.
i saved 80 kg from my sr now weighs 780kg.
nath
are you saying a 4-speed gearbox is lighter than a 5-speed? lol.
Or are you saying the lighter 1.0 & 1.2's only need a 4-speed box because of their light-weight.
nathan.
17-11-04, 10:16 AM
yeah it would be good to see it when its done.
unsure of all weights etc. but 1.0ltrs and 1.2s would weigh less anyway because theres less trim, 4 speed boxes etc.
i saved 80 kg from my sr now weighs 780kg.
nath
are you saying a 4-speed gearbox is lighter than a 5-speed? lol.
Or are you saying the lighter 1.0 & 1.2's only need a 4-speed box because of their light-weight.
no mate, just saying that most 1.0 and 1.2 ltrs have four speed gearboxes. therefore them being less in weight. well i presume a 4 speed gearbox is lighter than a 5 speed! unsure though!
nathan.
17-11-04, 10:29 AM
dunno what mine weigh's i'll have it checked when i get some plastic windows and ally door cards
i noticed you live in derby. me too! derby city council have a weigh bridge, thats where i weighed mine.
nathan, is it on rainsway?
4 speed boxes are lighter than 5 speed
nathan.
17-11-04, 06:32 PM
nathan, is it on rainsway?
4 speed boxes are lighter than 5 speed
no mate, i work on raynesway.
do you know where stores road is behind pentagon vauxhall?
yeah. opposite toyota?
where on rainsway do you work? i live in allenton, i've not seen you car around
nathan.
17-11-04, 06:48 PM
my dad lives in shelton lock. i work at vw near ambulance station
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