Alfa 33 1.7 16V Turbo

[RGC33]

Hi Guys,
I am looking for some advice, I was in the middle of building a turbo charged 16v engine for my 1985 built 33, when we discovered the chase wasn't up to the job. Now I was thinking if I have to get a new body, I should get the best possible one out there. I was wondering about the potential of the QV permeant 4's. Are these cars up to running high HP (200), how do they handle on tarmac, or am I best off going for a normal 16V.
Any thoughts?
Cheers Rueben

[keith_h]

My brother in law built a supercharged peugeot engine using a toyota supercharger which works very nicely. It's sitting in a 404 which has been modified from the ground up for this engine and the insane power it produces.

Getting back to the original question, 1.7 QV engine is probably a good candidate for the small supercharger and link ecu. It should be a simple matter to mount up and plumb in the supercharger and wire in the ecu. Given that this engine has a map sensor and lambda probe, throttle sensor, ping sensor and crank position sensor it should be relatively easy to tune with the link ecu. Boost is programmable so you could have as much or little as you wanted without needing to massively re-engineer the motor. Probably run the stock compression even with just a small amount of boost.

Could be a fairly straight forward mod. http://www.alfa-pages.co.uk/enginebaymp32.htm and a nice drive if the setup were conservative. Too much boost could be an unhappy experience trying to keep the wheels on the road. Can you get a limited slip diff for these things?

You might have seen this but if not, read on... http://www.alfasprint16v.fws1.com/index.html the perils of too much tweaking.

[87Sprint]

i rekon keiths on the money - the other advantage with supercharging is there is less risk of detonation, you can run higher compression and you keep low end torque

[active]

I've allready in the midlle of my 1.7 16v charged project. At first I was considering of getting turbo, but then I decided to intall a supercharger from MB slk. I decreased compresion rate til 8.8 by installing metal gaskets of 3mm tall. I think with a boost of 0.5 bar (or maybe even 0.7) we will have about 220hp and crazy torgue ;]

[keith_h]

My experience on other engines is there will be massive torque and and as much power as you need but you will require a third party ecu to manage the blower. Resist overdoing it or be prepared for diff/gearbox rebuilds. I think standard compression is OK for low boost applications as drivability is maintained but torque increased.

Keep us posted on progress Active.

[900 series]

One of our friends has a Supercharged 1.7 16v IE race car, although it isnt running currently as it dropped a valve in september last year. it sure can be done! the main problem for him is getting the power down to the ground, the best setup for him is 16x10 racing slicks.

[81Sprint]

Is he a member of the Alfa club? It isn't the flying pizza box is it?

[900 series]

Quote:

Originally Posted by 81Sprint Is he a member of the Alfa club? It isn't the flying pizza box is it?

[active]

what kind of supercharger is he using ? Damn clk supercharger is so big. It's very dificult to fit it under the hood..

[Oelholm]

"Flying Pizza Box"?

Pictures and clarification needed, thanks

[8v16v]

Im only running here from personal opinion not solid fact, but i dont think the 16V shell is a very good start for any serious project. It looks great, but its not that stiff. I know when ours is jacked up its hard to open the doors. Granted mine has had a hard life, but friends cars exhibit similar symptons - one has shown me where a small amount of paint has cracked off from body flex on the track.

If you want to build a hot boxer I personally think a 2 door sud or sprint would be the ideal base. Espicially if its all apart a few bracing bars and/or cage would make for a strong, light shell which would be great for a high powered boxer engine.

I know its not Alfa but i cant beleive the torsional rigidity of my X19 Fiat. At the moment its just a shell undergoing resotration, and the other day i went to change the jackstands. I noticed that it was only sitting on 2 of the 4 jackstands (FR and RL) yet it was rocking between the two of them. It doesnt droop at all, and it doesnt even have a roof!

[8v16v]

on another supercharged note a friend of mine at uni was involved in the buildup of a supercharged boxer for an open race car. I havnt seen the car driving, but have seen a video of the engine running and it looks amazing. Its running massive boost, somewhere nearing 20psi think and last time they tested it, it used 22 litres per hour of fuel at idle! Next time I see him I'll get him to sign up as a member here and maybe he can give some insight into this nuts boxer?

[77SudTi]

I had a similar experience with my Sud and jackstands, it sat stripped for several months and I noticed it was only using three of them and it never changed over those months....and yes the 33's do flex a bit and so too do Suds when jacked up, all that weight right up in the nose.
As for the Supercharged boxer guy - Jono, he was a regular Poster here on the BB, his name was KABOOM, haven't heard of him for a while now....be good to hear what hes up to with his boxer projects.

[tiong_botak]

[tiong_botak]