is this a jam manifold

[1990timeismoney]

[StarletSr?]

I think we went for it wasnt

http://www.ukstarletowners.com/topic/70514-do-all-standard-cast-iron-manis-have-code-between-1st-and-2nd-runner/?fromsearch=1

[shorty]

No restrictor in third runner though??

[StarletSr?]

I have to admit it does look like one so unsure lok

[1990timeismoney]

I just brought it and wasn't sure there doesn't seem to be any numbers on it and the cross in the turbo side is different to standard

[StarletSr?]

Nice when you get it put more photos up

[bucketep91]

Whats the big deal with jam manifolds anyway? Its essentially just a ported oem manifold

[Gainzy]

I don't think it is, the big deal is the reliability with the spool time and they can run the bigger turbo's, the runners are wider and all equal length's compared to stock jam knew what the were doing, if it was a case of just porting stock they would of just did that but the design is different in its own way...

[H_D]

Whats the big deal with jam manifolds anyway? Its essentially just a ported oem manifold

Its not a ported oem manifild. They have different casting marks on them compared to the oem manifold so they are essentially casted from a differnt mould.

They retain the stock look and have non of the restrictions.

[bucketep91]

So does a ported oem one though )

[daniel_g]

I threw one in the bin.

Haha, just kidding.

[H_D]

The jam manis also have different casting where the studs screw in to the collector

[Vincent-ep91]

thats a jam manifold... end of story

[bucketep91]

Who said it wasnt?

[1990timeismoney]

So its a jam manifold

[Gainzy]

Am still going with stock the ports just don't look thick enough to me put it up against another mani that's when you will know for sure!

[Addymk2]

The manifold ports don't need to be thick though; they just need to be matched to the head ports. If they're bigger than the head ports it can actually slow down exhaust flow. Just a thought

[AdamB]

they just need to be matched to the head ports. If they're bigger than the head ports it can actually slow down exhaust flow. Just a thought

That's the worst thing to do on a turbo motor, but that's a whole different topic.

I thought the cross section on the collector sat flush with the flange face on the jam mani's. Can't quite tell if it is flush from that pic though.

[Addymk2]

That's the worst thing to do on a turbo motor, but that's a whole different topic.

I thought the cross section on the collector sat flush with the flange face on the jam mani's. Can't quite tell if it is flush from that pic though.

That's what I meant, I can't see a company like JAM knocking out a manifold with huge ports which will essentially kill off performance.

Doesn't look OEM, the dip for the middle runners doesn't look as deep as my old OEM manifold.

[1990timeismoney]

Keep an eye out for this manifold I brought it on ebay recived a message from the seller saying its now been stolen

[Glanza-Ben]

you won it for 99p he proberly fort it he would get more and now cba to sell it that cheap

[1990timeismoney]

Yeah won it for 99p plus postage

[StarletSr?]

He sent me that message to and I didnt even buy anything from him lol

[Addymk2]

If he puts it back up to sale report him to eBay just for the fuck about factor lol

[Gainzy]

Right here we go the jam mani is on the right look at the thickess difference in the tubes more exspansion for the gas flow and the thicker ports...much thicker so no matter how much you port the stock it's never going to flow better, the guy probably thinks its a jam mani so he has taken it off ebay lol if anybody else says the jam mani is just a ported stock one more time am gunna kick off lol