1.6 8v or 1.6 16v

[kenny_lad]

just wonderin wot u people think wud be best for engine conversion, just weighin up all the options for now,ta Dan

[brian]

both the same to fit. little more to the wiring of the 16v
16v is around 4 times the price of an 8v.
16v has a head that likes tuning!
Power can also be extracted from the 8v.
8v quicker off the line
16v more pull up higher

[Aragorn]

depends what your planning to do

if its cheap power with no plans to mod the 8v is prolly a better option sice they regularly sell for ?100

if your happy to spend ?400 (ie 16v money) but dont wanna go mad then u are prolly better off buying the 8v and using the rest to tune it a little, say head work or maybe carbs and proper exhaust - prolly work out a bit faster than the 16v too

otherwise buy the 16v and tune away

[Ben (lurk75)]

As said if you want a quick fix go for the 8v and tune this will work out about the cost of a basic 16v if you want to go full out and spend some money and want serious gains, go for the 16v. Main options are...

Mantzel powerbox- ?500ish and about 25bhp

Throttle bodies- ?1500ish and about 50+bhp.

[padge]

ive got a 1.4 16v basically the same as 1.6 16v, and i got 21bhp from just an air filter, manifold, decat powerflow exhaust and boost valve, where as a mate with a 1.6 8v with the same bits got 15bhp and that was with a magnex exhaust which is better tuned for the car than a powerflow. if you got the money go for 16v!

[Ben (lurk75)]

ive got a 1.4 16v basically the same as 1.6 16v, and i got 21bhp from just an air filter, manifold, decat powerflow exhaust and boost valve

1.4 16v the same as 1.6 16v hmmm not at all, its the same as saying that XE is basically the same as LET.

I would be VERY sceptical about the gains you got from your mods, it dosent add up at all, i would be taking it to a decent rolling road and asking for a true figure, did you take it to a roling road shoot out for a magazine? as they are known to give rich readings to boost publicity.

I know the 1400's are good for tuning and react well to mods but from the list youve put i would be expecting about 10BHP or similar.

[CP]

lol - this is 1 of the perrenial favourite questions.

16V tuning = ?5000 for 200+hp
8v tuning = ?2000 for upto 150hp

[Ben (lurk75)]

and what choice did you take Cp :?:


:lol: :lol: :lol:

Both

[NovaNeil]

1.4 16v the same as 1.6 16v hmmm not at all, its the same as saying that XE is basically the same as LET.

I would be VERY sceptical about the gains you got from your mods, it dosent add up at all, i would be taking it to a decent rolling road and asking for a true figure, did you take it to a roling road shoot out for a magazine? as they are known to give rich readings to boost publicity.


He did get 111bhp, its not a dodgey rolling road as I have spent about 11hours on it having my Turbo set up! and I know the owner very well. It gets calibrated quite often.

What Padge failed to mention is the Induction kit is a Viper and the Exhaust system is straight through (No centre section) hence the higher power, but the Torque was only 105 lb's ft if I remember.

It made 107bhp before the Boost valve was played with.

Also what he mean't with the 1.4 16v is the same as the 1.6 16v comment is that the engines are very similar in layout.

Just had to clear that lot up :o

[padge]

nova neil speaks the truth and if you dont believe the power figures ill be at trax with the print out, it was running 105bhp before the man at stealth racing fiddled the boost valve, ill give you the telephone number if you want. Also 1.4 and 1.6 16v are similiar design of engines thats why the powerboxs on the later 1.6 and 1.4 are the same i believe, but they dont have similiar power

[Ben (lurk75)]

No thats fair enough, as neil said what your Mods were.

A print out still wouldnt prove or disprove wether the rollers were high.

[craig green]

I thought the thread was about 8v vs 16v 1.6 engines. It has to be said that the 16v is the one to go for, smoother power delivery and more mods available nowadays. However it is worth noting that the 16vs dont tend to run all that well when transplanted into other cars (teething troubles etc). also no-one really knows much about 1600 8v engines. Nova was only vaux to have it. Most back street garages wont have ever seen one!! I have an 8v btw.

[Ben]

Nova was only vaux to have it. Most back street garages wont have ever seen one!! I have an 8v btw.

So they wernt fitted to Astra's, Cavaliers as well then :?:

[craig green]

Sure the 8v 1600 is in tha Astras etc but not with the Bosch L3.1 Jetronic of the GTE & GSi MATE. Later multec equipped Gsis were common to the multipoint Astra Cesaro's and the like!

[Dan]

also no-one really knows much about 1600 8v engines

Sorry thats tosh lol, unless you have been unlucky and found places that arent that good or have a very limited knowledge.