Split Dumps VS Bellmouth Dumps

I'll send you my AMS dumps ...you have 2 months to do it

 

Yep, I did that too.
Although, mine measured at closer to 47mm than 46mm, but still tapered it to port match when installing.

...also i'd like to mention that with my AMS 3" dumps i had to grind down the divider a tad too as they were fouling by about 1.0-1.5mm.

 

if you're serious, im serious. Ill do it. same car, same dyno same day, just the fitting time in between

 

Well clearly no one wants to step up and do back to back tests on their own car and this pure guessing work is driving me nuts. Yea I made the decision to go bell mouth but doesn't mean that there isn't a nagging little voice in the back of my mind telling me 'hrm... maybe the split pipe theory is really superior'.

MoulaZX

 

I will eat my words if this actually happens... Happy to be proven wrong though.

MoulaZX

 

the theory is superior, but practice can be different.

Im willing to provide the car, labour and cover the cost of dyno time for testing, just need a set of split dumps

 

Yea... I meant that...

In the end practice is what I'll have to live with.

MoulaZX

 

how are you going to join the dumps to your current exhaust?

do you have 2.5 inch exhaust or 3 inch?

 

Just do a dump swap test only.
...As in, no other connected exhaust components for both tests. Easy, and mainly, consistant.

 

ill make 3in test pipes to match up to my 3in exhaust. system will be the same from there back

 

it will be too loud to run with no exhasut connected. dont want those exhasut gasses melting anything under there, either.

 

I'm going to have some AMS split 3" 5 bolts shortly Niall... You have 4 bolts though right?

 

yeah still 4 bolts chris, im a small fry

 

Well that stuffed that idea



Gay.

 

Not an issue. I've had dyno's done before with only the dumps connected for exhaust flow testing purposes (using dumps like the NPower & AMS ones which aim downwards of course). And Mechanic shops equip'd with dyno's in commercial or industrial areas won't have any noise issues during business hours.

 

oh

you still running the little 4bolt puppies

I have 5 bolt dumps

 

You could use mine for a day Nial I fried the clutch on the weekend so wont be needing them for a while.

Not sure I feel like pulling them off though only just got the f*ckers on!

 

ill ask the dyno operator , make sure he's cool with that

 

ideally we need someone who hasnt fitted them yet. taking them on and off is a pain.

let me know what way u are going with the clutch mate, ur probably just saving up for now though. lol