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Title: JPM Raptor IDA stacks Post by: Karlos99 on January 09, 2021, 12:15:56 pm Morning all
I’m in need of some new Velocity stacks for my IDA’s, I’ve come across the JPM set for a little more money than the genuine Weber style. Who’s got them? Who likes them? who doesn’t? And most importantly are they worth the money. Engine is a 2110, FK10 cam, ultramag heads with berg 35/40 grooved vents Many thanks Karl Title: Re: JPM Raptor IDA stacks Post by: henk on January 10, 2021, 13:12:47 pm I think it would be beter then to get everything from JPM.
So both the stacks and venturi's from JPM. Henk!!! Title: Re: JPM Raptor IDA stacks Post by: PPRMicke on January 10, 2021, 18:53:27 pm Morning all with JPM stacks and venturi (jpm) they flow much better than GB Venturi (that's with them are 70s think and vilever in the 20s)I’m in need of some new Velocity stacks for my IDA’s, I’ve come across the JPM set for a little more money than the genuine Weber style. Who’s got them? Who likes them? who doesn’t? And most importantly are they worth the money. Engine is a 2110, FK10 cam, ultramag heads with berg 35/40 grooved vents Many thanks Karl For info in IDA 51.5 with jpm venturi (44mm) and stacks, the limit is 285 hp /// Micke Title: JPM Raptor IDA stacks Post by: H67bug on January 28, 2021, 20:33:51 pm I have them with JPM venturis.
Can’t tell you what performance difference they made though... I had a lot of fuel stand off (fuel was all over the place above 2k rpm) and the rolling road team didn’t want to run the car so I fitted Weber ones instead to dial the car in. Have subsequently fitted them back on but not tested them yet. I did test the Wasp exhaust back to back and that made a huge difference V A1 with +18bhp. I wonder if this will help the fuel spray issue. Sent from my iPhone using Tapatalk Title: Re: JPM Raptor IDA stacks Post by: PPRMicke on February 09, 2021, 10:28:34 am I have them with JPM venturis. When calculating the length of your intake pulse (pulse 2 or 3) it was in stacks or above or at the venturiCan’t tell you what performance difference they made though... I had a lot of fuel stand off (fuel was all over the place above 2k rpm) and the rolling road team didn’t want to run the car so I fitted Weber ones instead to dial the car in. Have subsequently fitted them back on but not tested them yet. I did test the Wasp exhaust back to back and that made a huge difference V A1 with +18bhp. I wonder if this will help the fuel spray issue. Sent from my iPhone using Tapatalk Or did you just put them there /// M Title: Re: JPM Raptor IDA stacks Post by: H67bug on February 09, 2021, 11:02:43 am Hi
I used what JPM suggested from head to Venturi Sent from my iPhone using Tapatalk |