310cc or 240cc injectors???

dani1326 · March 01, 2011, 04:35:47 PM

right im on the hunt for some injectors, im sure i need 310cc ones but wont to make sure

my spec is

eaton charger
19% pulley ( around 22PSI )
1.5 BAR map sensor
4 branch manifold
piper 252/276 camshaft

i will be having it maped by PPP after but wont to make sure it the best it could be before so 310cc or 240cc injectors??? i think ill be needing the 310ccs but just wont to double check....

last off what do we think ill be running once its mapped???

hayesey · March 01, 2011, 05:05:44 PM

I would have said 310cc too but you need to speak to PPP if they are going to remap it.

poloeatonm45 · March 01, 2011, 08:58:46 PM

my car is a simalar spec to yours . i dont know what bhp it is but let me tell you it scares the pants off me its evil and i mean evil

dani1326 · March 01, 2011, 10:27:52 PM

Quote from: poloeatonm45 on March 01, 2011, 08:58:46 PM
my car is a simalar spec to yours . i dont know what bhp it is but let me tell you it scares the pants off me its evil and i mean evil

Yer mine dose lol, iv just got gone from my 17% reduced pulley to 19% and I can feel that 2% lol, carnt wait for the map

polo classic · March 08, 2011, 08:21:17 AM

From what Liam and Steve told me, they had problems getting the correct emisions (e.g. holding them open for short enough time on idle) on 1341's with redtops, so I guess redtops would be to large for a 1272

Andy · March 08, 2011, 08:48:58 AM

Frode - the 1341cc are 9:1 CR, and generally speaking need a fair amount less fuel on idle than an 8:1 CR 1272cc lump. The difference between the fuelling on Hayesey's 1272cc turbo and Robin's 1341cc turbo at idle is significant, and they both run the same cam and injectors.

The AAV turbo (9.5:1) I mapped was tricky to get the fuelling down at idle, even on 250cc injectors, but using the correct style (single pintle) type of injectors made a big difference too.

dani1326 · March 08, 2011, 11:54:00 AM

Quote from: Andy on March 08, 2011, 08:48:58 AM
Frode - the 1341cc are 9:1 CR, and generally speaking need a fair amount less fuel on idle than an 8:1 CR 1272cc lump. The difference between the fuelling on Hayesey's 1272cc turbo and Robin's 1341cc turbo at idle is significant, and they both run the same cam and injectors.

The AAV turbo (9.5:1) I mapped was tricky to get the fuelling down at idle, even on 250cc injectors, but using the correct style (single pintle) type of injectors made a big difference too.

So woud you recommend me using the 310cc injectors with my eaton G40??

Andy · March 08, 2011, 03:19:44 PM

Yes, I think you should be fine given what others have used - but only time will tell!

vwmk3jon · March 16, 2011, 07:36:59 PM

Mines on 310cc injectors.

poloeatonm45 · March 16, 2011, 08:01:52 PM

mine is on red top injectors too and it idles fine and is ok on the emisions too

steve