how do you read the engine specs seems pretty loose to me!

yeah got the new regsl 3j- improved production.

I thought the idea of imp pro was to have alot of freedom in what you could do; with the exception that the same features of the car must remain; i.e. 4 cy boxer, steel body, torsion bars etc...

Sander your pretty much right how ever there are a fair amount of freedoms. As long as the engine is the same numbers cyclinders, configuration and make (i.e Toyota to Toyota, Nissan to Nissan etc) and it came out in some production car some where in the world then the engine is allowed. i.e An old Datto with an SR or Corona with 4AGE or a Gemini with a twin cam which came out in the Holden Apollo (Toyota Camry). Heads, exhaust and induction/ignition and capacity are free as to are brakes. If you want to know anything the guys on here who race VWs in the Imp Pro class would be more then willing to help. Send me a PM if you have any Q's.

Yeah - plenty enough freedom really.

Bout only real restriction that potentially a pain is the "block/case must be from original manufacturer".

you could run a type 4 case as they came out in the 411 s which is a vw production car

Look out

Craig, my PM's aren't sending, why don't you post your question here.

Anyway, my response is, I agree entirely, rules are rules. I'd love to hear what cases other cars are running.

If you can run a type 4 case in a bug in 3J then surely its ok to have an aluminium case for a type 1. Although it says it must come from the same manufacturer if the factory isn't making them anymore a replacement item must be ok.

Just peeked at the Formula Vee rules and even they can run the aluminium cases!

If it was my car in 3J I would be going the type 4 engine route; way more power and torque!

If I was running 3J, I would go mag type 1 all the way. Ali cases are definately not made by VW, just like Scat, Pauter, TF1 etc etc aren't.
To me if it's 2 litre, a Type 4 would be a step backwards, heavier, all torque and no power, smaller rev range, but for over 2 litre they make more sense as you can go crazy in displacement, although I'd probably still stick with type 1 for the higher rpm, cheaper more available components and bottom line, more power-weight (yes awesome power 'can' be made from type 4, but heads are VERY exxy)

Quote:

Originally posted by matberry Look out

My engine is built on a mag case for IP and PRC. Though the alum case would be stronger, it not within the rules, but seems to be a common area to bend them.

Yeah Dave, look what you started.....

I agree, for me the weight is the biggest criteria being over the rear axle line. I forgot to mention that new mag cases are still available so there aren't any excuses to be running aftermarket.

How come the number of thread views keeps going up but the racers aren't commenting??????
[edit] ali case racers aren't commenting.

Quote:

Originally posted by PAZZAN you could run a type 4 case as they came out in the 411 s which is a vw production car

heads are meant to be original as well I think..I ran a mag case.... heads???

"4.1 General:
Subject to the limitations contained in 4.2 and 4.3(iii) below,the engine and components directly associated with its function are free. The crankshaft centreline as viewed from above must be parallel to that of the original engine."

Heads are 'free', so can be aftermarket and not restricted to original manufacturer.

Heads look free

"Subject to the limitations contained in 4.2 and 4.3(iii) below, the engine and components directly associated with its function are free."

and heads not mentioned below, they are free. In theory we could go to a custom made, twin cam, 8v head each side.

I wonder how this will play out with targeted scrutiny coming in? They'd have to prove it was aluminium and not mag... which wouldn't be easy for them

Shaun, proof is on the casting, VW or AutoLinea.....no brainer

good thread hey! sorry boys.

so v dub case 2ltr capacity who has a new idea of power production?

Quote:

Originally posted by matberry Yeah Dave, look what you started..... I agree, for me the weight is the biggest criteria being over the rear axle line. I forgot to mention that new mag cases are still available so there aren't any excuses to be running aftermarket. How come the number of thread views keeps going up but the racers aren't commenting?????? [edit] ali case racers aren't commenting.

yep I agree who cares what case your running ,ally is heaver but stronger I went through about 4 mag cases in about 12 years of competing...