exoert reqd: Is The 1.8 engine the same as a golfs?

[madhatta 0]

im purchasing a corrado g reg soon and was wondering if the engine in a 1.8 16v was the same as one of the gti's..

 

anyone know the answer to this??

 

if so, how similar are they, ie layout in the bay and tuneability...

 

8) cheese m8s

[andycowuk 0]

identical....Kr engine code, kjet management.

 

Fairly tunable. best step is to change bottom end for 9A or ABF block. Simple swap all ancilaries are the same (except the gear on the end of the oil pump drive shaft)

[Henny 0]

identical....Kr engine code, kjet management.

 

Fairly tunable. best step is to change bottom end for 9A or ABF block. Simple swap all ancilaries are the same (except the gear on the end of the oil pump drive shaft)

 

Yup, they also fitted 'em to Jettas and Passats as well as C's and Golfs (my MKI had a passat 16V lump for a while :D )

 

About the only thing that changed during the run of the KR engine was the inlet manifold which they altered the bore sizes of to make for better low down torque for the larger cars... :)

 

They're a great engine, but can be a pain in the backside to tune properly for unleaded petrol so they have a nasty habbit of pinking under heavy load... :?

 

Best mod for money is to try and find a Weber "red line/fire-breather" throttle body. This replaces the original twin butterfly throttle body with a single 63mm butterfly which is around 300% of the original! If you can find one, it'll cost you about £120 new and will add on around 15 to 20 BHP (got graphs to prove!) to a standard KR lump... 8) They were originally designed for the MKI golf 1600 and Porsche 924 to give them a bit more poke... I'll dig out the part number off the boxed one I've got and edit this post when I get home... 8)

[madhatta 0]

SO the engines are exactly the same yeah?

 

sorry if this is a dumb question, but im feeling a bit thick 2day

:?

[joebloggsVR69 0]

Erm..

 

The mk2 Golf 1.8 16v has 139bhp, the Corrado 1.8 16v and 2.0 16v had 3bhp less for some peculiar reason :?

 

And I have to say the Golf 16v certainly feels a shade quicker. Must be b'cos it weighs slightly less

[Henny 0]

Erm..

 

The mk2 Golf 1.8 16v has 139bhp, the Corrado 1.8 16v and 2.0 16v had 3bhp less for some peculiar reason :?

 

And I have to say the Golf 16v certainly feels a shade quicker. Must be b'cos it weighs slightly less

 

As I said in a post above, some cars had a different inlet manifold to change the torque curve... Because Torque is directly related to BHP it knocked a couple off... The biggest difference in the C vs Golf 16V was the gearbox ratios which made the 16V C feel that bit more sluggish off the line... Get her spinning though and the C will trounce past at higher speeds and will out handle a golf with no problems whatsoever... :D

[madhatta 0]

LOOOVELY, Just What i Wanted To Hear! 8)

[andycowuk 0]

joebloggs69 wrote:

Erm..

 

The mk2 Golf 1.8 16v has 139bhp, the Corrado 1.8 16v and 2.0 16v had 3bhp less for some peculiar reason

 

And I have to say the Golf 16v certainly feels a shade quicker. Must be b'cos it weighs slightly less

 

The 2.0l 9A engine (and the ABF from the mk3) have milder cams than the KR, the increase from 1.8 to 2.0 was due to the cat killing the already useless 'torque at low revs' of the KR.

 

You can put the cam shafts from the KR into either of the 2.0L engines and it gets the more 'peakish' top end again that the ABF and 9A desperately lack.

 

I have an ABF in my MK2 golf, with a magnex manifold and system and KR cams. It has good torque from idle speeds - i drive around in 5th gear all day!

 

Andrew

[Rossco 0]

henny can you put up the part number of this throttle body im pretty keen on it

 

cheers

Ross

[dubster82 0]

newcorradoowner, thought you would be!!! :lol:

[Henny 0]

henny can you put up the part number of this throttle body im pretty keen on it

 

cheers

Ross

 

The box is at my parents, I'll be popping up there later so I'll post it then...

 

I got mine from a place online called "the carburettor hospital" who had a couple :shock: left on their shelves last time I spoke to them... That was about 2.5 years ago now though! :roll:

 

You need to do a small modification to the lever (adding a return spring) 'cos the existing spring is too soft... Fart and you're at full throttle! :shock: :? I added a spring from a MKI throttle body and that sorted it no problems...

 

It also has a neat mounting point for a 5th injector if you drill out a blank that may get used for a NOS injector on my MKI when I finally re-build it... :D :wink:

 

EDIT!

 

Oooh, I just found their address and details... 8)

 

Address:

The Carburettor Hospital

Wits-End,

Ulverston Road,

Ashingdon,

Rochford,

Essex

SS4 3JT

 

Telephone: 01702 200549

E-mail: mailto:[email protected]

 

 

I'll post the part number shortly... :D

 

EDIT AGAIN!

 

And website!

http://www.carburettorspecialists.com/stock.htm :lol:

[Henny 0]

Hello Peeps! :D

 

As promised, 8) the part number is a Weber part number: W155 50 901 (902 is the porsche version but I'm not sure what the difference is as I've only got the golf version)

 

The box says:

WEBER

155 50 901

Golf 1.6GTI

1976 Onwards

Throttle body

90.0090.65

 

The website in my post above shows that they have 2 in stock of this type (which I know work well with the 16V KR engine) and 3 of the Porsche ones all at £110 each... They're under CARBS near the bottom of the online list... 8)

 

Here's a couple of pics of the thing... The butterfly (choke) is approx 65mm across and on my new one (old one was stolen along with entire injection system off my MKI while it was parked up... :mad: ) there's a nice blanking bung that can be pressed out so that a 5th injector can be added straight into the throttlebody... :D

 

The only thing I will warn you about is that your fuel economy will be close to ZERO MPG 'cos you'll be hammering it all the time 'cos the noise it makes and it's "GO!" factor are too much to resist!!! :roll: :lol:

[vr6storm 0]

Best mod for money is to try and find a Weber "red line/fire-breather" throttle body. This replaces the original twin butterfly throttle body with a single 63mm butterfly which is around 300% of the original! If you can find one, it'll cost you about £120 new and will add on around 15 to 20 BHP (got graphs to prove!) to a standard KR lump... 8) They were originally designed for the MKI golf 1600 and Porsche 924 to give them a bit more poke... I'll dig out the part number off the boxed one I've got and edit this post when I get home... 8)

 

 

ah bringing back memories of when i thought about buying this for my 83Y porsche 924 lux........it was £120-ish back then in 1993 too

 

newcorradoowneryou should try checkpoint in aberdeen to see if they can still get them as i seem to remember it was checkpoint who stocked them,tho this was when they were situated in rosemount place before they moved to george street

[Henny 0]

Just been thinking... :shock: (rare for me! :lol: )

 

To build my MKI golf 16V I converted the engine to be K-jetronic fueling, not KE-Jetronic like the KR engine is supposed to be.... don't ask why, it was a long time ago and was before the 16V MKI conversion became as popular as it now is, and I was working on a very tight budget 'cos I was at Uni... :lol:

 

To install one of these bodies into a KE-Jetronic system you're going to have to make up a couple of little brackets to hold the microswitches for idle and full throttle... Not difficult, but you'll need 'em to get the car to run properly... just thought I'd add that before anyone spends their hard earned and then finds out that there's more involved... 8)

[capnahab 0]

would anything be gained by putting a mk2 GTI 16v 52mm inlet manifold on me rado, replacing the smaller one?

[KARMANN 0]

Oh this is an old topic-but a relevant one for me. Well if i manage to get my hands on one.

Ok so to install this throttle body,i dont need to buy anything except the actual throttle body itself?

These brackets that need to be made up for the microswitches do they need to be mounted roughly where the are in the engine at the moment?

and what happens to the airbox and everything connected to it when doing this mod?

 

Cheers Fraser

[Henny 0]

Oh this is an old topic-but a relevant one for me. Well if i manage to get my hands on one.

Cool, we like to bring things back from the dead... just look at my car! ;) :roll: :lol:

 

Ok so to install this throttle body,i dont need to buy anything except the actual throttle body itself?

yup, except for maybe a coil spring to put at the bottom (you could even use the one off your old throttle body) to give the peddle a bit more feel, that's it.... 8)

 

These brackets that need to be made up for the microswitches do they need to be mounted roughly where the are in the engine at the moment?

 

yup, spot on.... the switches need to do EXACTLY what they do on your car at the moment... 8)

and what happens to the airbox and everything connected to it when doing this mod?

 

you just plug it back in where it came from! ;) The air box shouldn't be affected at all, the only thing you are changing is the throttle body itself... The ONLY 2 bits of this mod that you may have to play with are the way that the throttle cable attaches to the throttle, the return spring on the throttle (to make it a bit stiffer so it's not as light) and the brackets for the throttle switches... 8) Even if you have to do all 3 of these, it's not a large amount of work to do 'em all anyway! 8)

 

It really is an easy mod... the only thing you may find is that you have one extra vacuum take of pipe on the throttle body... simply blank this off with either a blanking part that you should be able to get from any motorfactors, or put a pipe on it with a screw in the end to block it... 8)

[aposegil 0]

very interesting

 

am i correct in saying its a two piece kits

 

adptor plate

 

throttle body??

[Henny 0]

very interesting

 

am i correct in saying its a two piece kits

 

adptor plate

 

throttle body??

 

Yup... 8)

[belfastfumanchu 0]

This sounds like a bloody impressive mod & relatively cheap !

Think i may get this done. Sounds too good not to.

[davidwort 0]

identical....Kr engine code, kjet management.

 

Fairly tunable. best step is to change bottom end for 9A or ABF block. Simple swap all ancilaries are the same (except the gear on the end of the oil pump drive shaft)

 

yep, which is now 97 quid plus vat from VAG, not funny :cry:

 

also, the oil pump is a higher capacity in the 9A/6A block and has a different splined type fitment to the oil pump gear, which is why the gear is a different part.

 

David.

[daves16v 1]

I've heard about the single butterfly throttle last year from a guy at Basford Dyno-tune in Notts and he recommended it too.

 

HENNY, I take it the mod is straight forward on the 2.0 9A too? What about the duct that attaches to it, at the moment it is oval shape for two butterflys, is this flexible enough to reshape to round and will it be the right size when round?

 

Dave

[Henny 0]

I've heard about the single butterfly throttle last year from a guy at Basford Dyno-tune in Notts and he recommended it too.

 

HENNY, I take it the mod is straight forward on the 2.0 9A too? What about the duct that attaches to it, at the moment it is oval shape for two butterflys, is this flexible enough to reshape to round and will it be the right size when round?

 

Dave

 

I have no idea about the 2.0 9A as it's not K-jet and I've never played with one...

 

The pipework that goes onto the throttle body is flexible enough to fit onto the Weber on KR engined cars, but again, I don't know about the 2.0 16Vs... On a KR it's a tight fit to get it on the first couple of times, and you need to make sure the jubilee clip is a good one and nice and tight once you've fitted the pipe... 8)

 

Be VERY careful the first time you take it out for a drive if you do this mod... The change in how the throttle responds may catch you out as it is such a change.... ;) 8)

[KARMANN 0]

Thanks for your help Henny and everyone-once i do this and fit new engine (could be few months) il post up my results.

 

 

Cheers Fraser

[kvwloon 0]

Blimey, that's certainly got my attention for a future mod....anyone got a secondhand carb as detailed they don't need anymore.....!? :lol:

 

Also, if you change to the larger (50mm?) inlet, is there a downside at all, does it change things really noticeably from the smaller manifold? Must admit the 16v is great once it gets spinning, but at lower revs...hmm. I'd consider swapping in a larger manifold, but is it worth doing?