What engine mods to gain more torque in low revs on 16V? - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

Not logged in [Login - Register]

You Are Not Registered Or Not Logged In

Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » What engine mods to gain more torque in low revs on 16V?

New Topic

New Poll

Subscribe | Add to Favourites

You are not logged in and may not post or reply to messages. Please log in or create a new account or mail us about fixing an existing one - register@corsasport.co.uk

There are also many more features available when you are logged in such as private messages, buddy list, location services, post search and more.

A2H GO

Member

Registered: 14th Sep 04
Location: Stoke
User status: Offline

1st Oct 04 at 16:46

I have a 96 Sport, 1.4 16V, the only trouble is, as with most 16V's, the acceleration is only noticable after 3.5-4k, therefore it has a major weakness over 8V's.

I would like to kno what sort of engine modifications i could do in order 2 open up a bit more power lower down in the rev range?

corsa_godfather

Member

Registered: 6th May 03
Location: Greenock,Scotland
User status: Offline

1st Oct 04 at 16:57

not really much you can do mate.full system and a manifold.apparently its either the 4-2-1 minifold or the 4-1 minfifold will give u more power down low but less up high and the other gives u less low and more high

broster

Premium Member

Registered: 6th Dec 02
Location: Drives: E39
User status: Offline

1st Oct 04 at 17:01

ull want 4-2-1 for al lround, also the 1.4 16v will never loose to a 1.4 8v sri s odont worry

corsa_godfather

Member

Registered: 6th May 03
Location: Greenock,Scotland
User status: Offline

1st Oct 04 at 17:05

^^listen to the man

A2H GO

Member

Registered: 14th Sep 04
Location: Stoke
User status: Offline

1st Oct 04 at 17:08

now that i didnt kno

so start with the manifold, gonna De cat afta MOT this month, got a backbox, what next, cams or Inlet...?

i dnt mind if i loose a bit of top end power 2 compensate for the slugish bottom end

Rileysport

Member

Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline

1st Oct 04 at 17:17

quote:
Originally posted by broster
ull want 4-2-1 for al lround, also the 1.4 16v will never loose to a 1.4 8v sri s odont worry

will it not????

James R

Member

Registered: 4th Feb 03
Location: 205GTi16/306GTi16
User status: Offline

1st Oct 04 at 17:30

An unfortunate characteristic of these engine a bit empty under 4k, kinda obvious cause of the large vlaves the engine has. courtney hi-torque cams maybe. Although revving it more could be a cheaper option

broster

Premium Member

Registered: 6th Dec 02
Location: Drives: E39
User status: Offline

1st Oct 04 at 17:44

well when my 1.4 was standard and modded no 1.48v beat me!

broster

Premium Member

Registered: 6th Dec 02
Location: Drives: E39
User status: Offline

1st Oct 04 at 17:45

also the first mod on the 16v engine should be the inlet then exhaust manifold, cams and head work

Rileysport

Member

Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline

1st Oct 04 at 17:46

i beat standard 16v ones

broster

Premium Member

Registered: 6th Dec 02
Location: Drives: E39
User status: Offline

1st Oct 04 at 17:49

quote:
Originally posted by SRi-Co
i beat standard 16v ones

was ur car modded, was he racing, only about 40ish when the 16v will pull away, u wont be far behind it till then

Rileysport

Member

Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline

1st Oct 04 at 17:54

nope we were racing... i got off the mark faster and just pulled away, that was the end of that, got upto bout hundred, ive got cam zorst and big fook off cone filter thats all. ooh and i always run optimax

broster

Premium Member

Registered: 6th Dec 02
Location: Drives: E39
User status: Offline

1st Oct 04 at 17:56

yes well ur porpbably making more power than him or the same

A_Venables

Member

Registered: 6th Jan 04
Location: Coventry
User status: Offline

1st Oct 04 at 18:27

I raced a 16 valve with same mods as my 8 valve, met him 2 weeks previous too the race, so I knew what it was packing, had him upto 70mph very, very easily, only when it got to 70 did he keep up and NOT pass me, the only nice thought for the 16 valve would be the mods would not work so well on the 16 valve, rolling roaded my car last week at Well Lane, figures are:
93bhp @ 5890, 94Ib/ft @ 2800, this is where an 8 valve will win, look at what and where my peak torque is!

broster

Premium Member

Registered: 6th Dec 02
Location: Drives: E39
User status: Offline

1st Oct 04 at 18:43

when ur racing d o udrive at 2800rpm

Rileysport

Member

Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline

1st Oct 04 at 18:44

quote:
Originally posted by broster
when ur racing d o udrive at 2800rpm

valid point... mine spins far too easily from the start... will just about grip in 2nd gear

broster

Premium Member

Registered: 6th Dec 02
Location: Drives: E39
User status: Offline

1st Oct 04 at 18:47

when im racing i get to 5k as soon as poss then try not to drop below it

miles

Member

Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline

1st Oct 04 at 21:12

An inlet manifold helps everywhere, but as said, just rev it.

LiviLion

Member

Registered: 10th Feb 03
Location: Glenrothes, Fife
User status: Offline

2nd Oct 04 at 22:30

quote:
Originally posted by CorsAsh-Sport
I have a 96 Sport, 1.4 16V, the only trouble is, as with most 16V's, the acceleration is only noticable after 3.5-4k, therefore it has a major weakness over 8V's.

I would like to kno what sort of engine modifications i could do in order 2 open up a bit more power lower down in the rev range?

That's the deal with 16v versus 8v though. 8v's are better low down but 16v's come into their own once you get to 4k+.

Not really much you can do about it but be safe in the knowledge you'll overtake eventually.

I use the Saxo VTR as a good example. Off the line they are pretty much identical to a 1.6 Sport however once the revs hit 4k I pull away with ease.

Just remember to take the 16v all the way until you feel the power dropping off. Change up at this time.

Power should start to fade before you hit the rev limiter as well.

The above post relates to standard cars only.

LL

starkie

Member

Registered: 1st Jul 03
Location: Leslie, Fife
User status: Offline

3rd Oct 04 at 08:21

i thought it was the vts that was 16v and the vtr 8v is that not the example you meant

miles

Member

Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline

3rd Oct 04 at 08:52

Yeah VTR's are 1.6 8vs.

My misses 8v certainly picks up a bit after 4000rpm and pulls all the way to 6,000, with the standard inlet manifold the 16v is a bit crap up high, although that could just be because I was used to driving a 16v with the mantzel fitted...

BabyBlade

Member

Registered: 5th Feb 03
Location: Hereford Rides: Ninja 600
User status: Offline

3rd Oct 04 at 10:00

depends on the driver....

James R

Member

Registered: 4th Feb 03
Location: 205GTi16/306GTi16
User status: Offline

3rd Oct 04 at 11:37

Oh if you seriously want to increase low end toruq then nos, ot turbo with antilag or super charger.
But jsut rev the car, 4K launches

LiviLion

Member

Registered: 10th Feb 03
Location: Glenrothes, Fife
User status: Offline

3rd Oct 04 at 13:49

quote:
Originally posted by starkie
i thought it was the vts that was 16v and the vtr 8v is that not the example you meant

You are correct but I was comparing 8v against 16v hence comparing a Corsa Sport 1.6 16v with a Saxo 1.6 8v.

A 1.6 16v VTS is faster than a 1.6 16v Sport.

LL

New Topic

New Poll