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Gti_Lew · Post by **Gti_Lew** » Fri Jan 25, 2008 4:32 pm

Felt like ages waiting but it was only 4 days lol, love it already, just needs mapping ASAP!

Jeff GTi · Post by **Jeff GTi** » Fri Jan 25, 2008 4:36 pm

NICE SEAT IBIZA HAHA, NOT IM ONLY JOKING, LOOKS COOL MATE, HOPE YOUR ENJOYING IT, AND GET THAT HEAP OFF THE DRIVE AND YOURS ON TO IT HAHA

HAVE YOU HAD CHANCE TO FIT YOUR N75J TO IT YET, AND WHATS IT LIKE?

JEFF

OOPS, SORRY, CAPS

Gti_Lew · Post by **Gti_Lew** » Fri Jan 25, 2008 4:45 pm

thats next doors heap lol, my mum had her tf on the drive, tf.. wtf that doesnt take precedence on the drive over a Gti lol, i had to park in front of next door, our street is terrible for parking

I've not fitted my valve yet, to be honest, i think ill wait untill its mapped, i cant see it making a major difference to standard boost?

more-bhp · Post by **more-bhp** » Fri Jan 25, 2008 4:57 pm

In lovely red...just like mine

Gti_Lew · Post by **Gti_Lew** » Fri Jan 25, 2008 4:59 pm

on closer inspection, it appears i indeed bought the H version of the valve, how could i forget

When its on, we can swap war stories, and see how each version affects the car

for anyone wondering, this is what an N75 valve looks like, the version of the valve is on the end of the part number, in my case "H"

KennyPOLO_Gti · Post by **KennyPOLO_Gti** » Fri Jan 25, 2008 5:06 pm

Can the H not overboost ur turbo???

Gti_Lew · Post by **Gti_Lew** » Fri Jan 25, 2008 5:13 pm

there are mixed tales of both, it seems to vary with each car, guess its a suck and see mod, no harm in trying tho hey

KennyPOLO_Gti · Post by **KennyPOLO_Gti** » Fri Jan 25, 2008 5:34 pm

Yeah, think ill fit the J valve ti mine if all goes well with Jeff. Nice colour of car

Gti_Lew · Post by **Gti_Lew** » Fri Jan 25, 2008 6:28 pm

i think the H valve is more suited to the American market, but we should have a nice comparison of both through me and Jeff

"my H valve is bigger than your J"

Harnz · Post by **Harnz** » Sat Jan 26, 2008 3:57 pm

hmm what is it? what does this do. if it means better performance. when can i get my hands n 1 and how much lol

Jeff GTi · Post by **Jeff GTi** » Sat Jan 26, 2008 4:02 pm

N75J - arrived from VAG parts this morning at a cost of Â£46.30 inc VAT and delivery - really good guys at vag parts, i always get sorted really quick with them,

n75j fitted and no limp mode, result,

my findings are

1)indeed the electrical connector is in reverse to the standead n75 valve, by fitting at the rear, but the valve is still fitted much the same, long leg to the TIP etc, the new valve has the "J" marking where the original valve has nothing

2)boost seems more aggressive now and seems to spool earlier, weather boost pressure has increased i dont know as i have no boost guage to give before and after readings

3) hard acceleration from low ish revs in all gears is significantly smoother,

4)power delivery is more progressive too,

5)throttle response, is slighty improved, as soon as you hit the go go pedal, the power is there, it also seems to make the car rev nicer on idle too, smoother.

its obviously early days and the ecu is stil to fully adjust to it and the new perameters, but after my 20 mile drive, 1/2 hard and 1/2 easy going, im liking what iv seen so far, lets hope the valve and the ecu dont grow to hating each other

hope my findings proove useful to people on here, but i must stress, these are my findings and may not be the same from engine to engine

Harnz · Post by **Harnz** » Sat Jan 26, 2008 4:05 pm

thanks for that will look into gettin one of these

Gti_Lew · Post by **Gti_Lew** » Sat Jan 26, 2008 6:07 pm

nice write up, ill put my H on tommorow, but i cant see it making much differences to a standard map, maybe a few psi, who knows, we'll see