not as fast as it was

Feb 1, 2007
1,293
0
gloucester
i lent my car to my mate , so he could flock my dash , when i got it back of him i jumped in it and went for a little drive , the car felt real slow , almost like a k03s , not a ihi , he wouldnt of changed any bits over before anyone says that , and he only done 50 miles in it , as i noted the milage down of the car , would the n75 valve make it run slow , bill logged the car , and it wasnt getting the requested boost , it was asking for 1.4 but only getting 1.1 , anyone know what this could be , any help would be great ,
 
Nov 2, 2004
9,335
0
South Wales
Boost leak? Maf? Usual stuff.

You need to log it more to figure out whats happening otherwise we're just pissin in the wind. lol.
 

ibizacupra

Jack-RIP my little Friend
Jul 25, 2001
31,333
19
glos.uk
n75 check first nick as we discussed last night (swap one)

When my previous IHI went laggy, failing to get going as it used it, it turned into warped melted exhaust housings. Yours is'nt as laggy as that, but not as spritely as when you first brought it either.

Presume MAF disconnect made no odds.. (airflow max was 212g/s logged) but it is likely its a frigged MAF with JS 'mod' to it. 8NO file on it as usual.

Do the N75 first, check the pipes....... and take it from there.
other mechanical things to check would be actuator is closing and opening properly with pressure applied to it etc.....
 

p34ch3y

tastefully modified
Oct 17, 2005
2,879
1
cambs
do the n75 valves go fairly offten? :think:

i think mine may be gone its an F that i run but its gone all laggy just lately so i tryed a C that i have laying about and it feels much betta

i get 18psi with the F but only 15psi with the C
 
Feb 1, 2007
1,293
0
gloucester
n75 check first nick as we discussed last night (swap one)

When my previous IHI went laggy, failing to get going as it used it, it turned into warped melted exhaust housings. Yours is'nt as laggy as that, but not as spritely as when you first brought it either.

Presume MAF disconnect made no odds.. (airflow max was 212g/s logged) but it is likely its a frigged MAF with JS 'mod' to it. 8NO file on it as usual.

Do the N75 first, check the pipes....... and take it from there.
other mechanical things to check would be actuator is closing and opening properly with pressure applied to it etc.....

checked the maf bill , didnt seem to make a difference , ordered a new n75 from vagparts as well , should be with me tommorow ,
 

ibizacupra

Jack-RIP my little Friend
Jul 25, 2001
31,333
19
glos.uk
worst case is your m8 ragged it and its melted its exhaust housing...

hoping not for your sake.. but its common. (and I have a box full of warped/cracked housings to proove it) :hide:
 
Feb 1, 2007
1,293
0
gloucester
the turbo is only £445 from japan , so it isnt a life crisis if it is , it felt laggy before as well , it did go well , but down low , do ihi s usually boost at 3500 - 4000 revs , or are they meant to kick in a bit quicker than that , i bet a couple of ihi s are like this , but people havent noticed because they have got used to the power
 

ibizacupra

Jack-RIP my little Friend
Jul 25, 2001
31,333
19
glos.uk
you have to ask.. and why craig ended up scrapping his BT parts only 500mile after his JS IHI install..

:confused:
 
Feb 1, 2007
1,293
0
gloucester
i bought a new turbo of ollie20vt earlier , got a 3" downpipe as well , gonna get the car booked in some where as soon as bill get the inlet manifold , aquamist , and lsd , i got a new rocker cover to go on as well with a oil catch tank fitting on it , new ihi , 3" downpipe , oil catch tank , new window motor , new spax suspension , and few other bits , will let you know if the turbo solves the problem pete , the new turbo should be good for another year or two , dought i will have the car that long but hay
 
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