INTAKES: What do you run or are building?
#196
Edit never mind found the answer to my question "blow off port"
Costs are in that ballpark excluding the throttle bodies. As its custom design there is always variables but we have done the JIG for 8v head.
As every engine compartment can be different one have to check that dimensions suit to their application.
We'll try to get figures from dyno once everything is set. Im not targetting high figures as block is not build for such, but it will be interesting to see how it works in this application.
As every engine compartment can be different one have to check that dimensions suit to their application.
We'll try to get figures from dyno once everything is set. Im not targetting high figures as block is not build for such, but it will be interesting to see how it works in this application.
#200
Three Wheelin'
Still like this setup: http://haywardperformance.com/intake-systems/#porsche
You can run the manifold without the ITB's and use a http://www.jenvey.co.uk/products2/tu...-inlet-aplc-70 instead...
Cheers,
Mike
You can run the manifold without the ITB's and use a http://www.jenvey.co.uk/products2/tu...-inlet-aplc-70 instead...
Cheers,
Mike
#201
Three Wheelin'
Why would you want to pay UKP 640 for just a plenum? I fail to understand why anyone would pay huge money for questionable design (in intake manifild, exhaust etc) and then question the need for s a standalone for example...
#203
Rennlist Member
Thread Starter
The Jenvey Plenum doesn't look so different from yours in design? As for the cost, unless you are a sheet metal fabricator and can knock up something yourself, you will have to pay that sort of money for a plenum that isn't ground level super budget. For a Sand cast item that cost doesn't surprise me.
#205
Rainman
Rennlist Member
Rennlist Member
Definitely a million lower-cost options than the Jenvey - IMO they are another one of those "internet gold" items...I am sure they work great and are made beautifully, but I'd bet people buy them just to say they have them.
Would definitely use an existing OEM's small throttle body if doing ITB...idle control usually built in and parts availability potentially infinite.
Would definitely use an existing OEM's small throttle body if doing ITB...idle control usually built in and parts availability potentially infinite.
#206
Three Wheelin'
Yes, that's my problem, thanks for pointing that out. Can you now please go back to your things and let others discuss if you do not have anything productive to add?
The Jenvey Plenum doesn't look so different from yours in design? As for the cost, unless you are a sheet metal fabricator and can knock up something yourself, you will have to pay that sort of money for a plenum that isn't ground level super budget. For a Sand cast item that cost doesn't surprise me.
#207
Rennlist Member
Thread Starter
Ok, I misunderstood what you said. I agree on Standalones too.
#208
Three Wheelin'
Anyway, GBP640 ain't what it used to be...
#209
Three Wheelin'
This intake produced 254 whp with E85 and VEMS ECU, completely stock 968 engine. With Motronic and gas it made 209 whp, with VEMS ECU 221 whp, with E85 228 whp and finally with intake 254 whp. Runs were made on Dynapack hub dyno.
It is milled in 5axis CNC (including protruding trumpets), then sheetmetal is welded to finalise the plenum. Engine resides in '82 924.
It is milled in 5axis CNC (including protruding trumpets), then sheetmetal is welded to finalise the plenum. Engine resides in '82 924.