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View Full Version : e16se tuning ideas.........



mowgli
24-04-10, 09:21 PM
i am going to have to take the head off my e16se in the very near future....

i am thinking of getting some bigger valves fitted, as in 20seh ones, unless someone knows of a better choice...... i was just going to get it done locally & then tidy up the porting...

but this is my big idea....

would it be worth making up new inlet trumpets (i know an ally welder bloke) to take the gm injectors, fabricating a plenum, still running the original l3.1 jetronic injection.. my idea is to make the plenum face the other way because there is way more room over the gearbox area for a decent air feed, and then in the future, maybe forced induction.......

i am not going to fit an xe, ok, i am doing this more as a hobby than as a means of visiting as many hedges as i can in the shortest time

reasoned arguments please

Pistol Pete
24-04-10, 09:23 PM
Heres an idea...http://www.pngclub.com/forum/showthread.php?t=145636

mowgli
24-04-10, 09:25 PM
Heres an idea...http://www.pngclub.com/forum/showthread.php?t=145636

and it have already posted on that thread pete.......

packaging the air pipes is always the big problem on turbo engines, and putting the air fitler, afm on the rh inner arch is truly crap packaging.

Danny s-p
24-04-10, 09:44 PM
how do you fit the 2L seh valves to the e16se.do you just get the head reamed out to fit them. (just place them in as any normal valve or do the valves need shortening or not stem length wise).

mowgli
25-04-10, 09:45 AM
they are surprisingly close in size, apart from the actual head diameter, & that would need the seat recutting, or maybe seh valve seats...

Stuart
25-04-10, 10:04 AM
if they are that close, why bother lol

Adam
25-04-10, 10:10 AM
I know some Mini places do a conversion on the inlet to get the tb on the other side. (They cut and re-weld the plenum)

mowgli
25-04-10, 10:57 AM
if they are that close, why bother lol

the stem size, is almost identical, but the valve is 3mm bigger diameter......thats why i'd bother.....

Danny s-p
25-04-10, 11:10 AM
i may get a spear head and try this mowgli. were wood a take the head to get this sort of work done tho

Stuart
25-04-10, 11:49 AM
any half decent local engine builder. No need for them to be 'race specialists' lol

nacho mcnova
25-04-10, 12:46 PM
phase 3 head, throttle bodys & live remap?

mowgli
25-04-10, 02:52 PM
phase 3 head, throttle bodys & live remap?

please explain......just what is a phase 3 head on a n/a engine..........

throttle bodies are way over my almost non-existant budget

live remap????? i have a bosch l3.1 jetronic, it is basically an analogue circuit... it is also impossible to remap

mowgli
25-04-10, 02:56 PM
any half decent local engine builder. No need for them to be 'race specialists' lol

i agree with you there stu......... most race specialists just send their stuff to a local engine shop anyway... very few people these days actually modify the metal bits on an engine..

John
25-04-10, 02:56 PM
flowed head, 4 branch, biggest spec cam you can afford. (otherwise you know what i'm going to say :p )

mowgli
25-04-10, 02:59 PM
i am not going to xe it on principle john, i do not want to modify the shell on this car. this is just me attempting to do something a bit different over a long period of time..........

John
25-04-10, 03:00 PM
i am not going to xe it on principle john, i do not want to modify the shell on this car. this is just me attempting to do something a bit different over a long period of time..........

Ok i know, couldn't resist tho :p

How about an seh though? Or is big block just a no-no?

John
25-04-10, 03:02 PM
Mike, i'm sure i remember an old tv showing the gains from a modded airbox on an oval racer, iirc it was about 125bhp! still on standard management too.

mowgli
25-04-10, 04:26 PM
Mike, i'm sure i remember an old tv showing the gains from a modded airbox on an oval racer, iirc it was about 125bhp! still on standard management too.

it would take more than just a modded airbox, surely....... i mean, a decent cone filter only gives about 5hp,
i know a hard cam & removing the rev limiter would be a huge hp gain, but only on a circuit...

any chance you have the article knocking about?????

mowgli
25-04-10, 04:29 PM
Ok i know, couldn't resist tho :p

How about an seh though? Or is big block just a no-no?

i have been thinking about an SEH, but, the newest one is still more than 15 years old & will have been to the moon a couple of times, & will need rebuilding, so I may as well put the money into the devil i know..

mine could probably do with re-ringing, it needs a head gasket anyway, so while its apart, it would seem logical to spend a bit of time on it.. i have some time, but i don't have money, so its all going to be a bit diy....

MattBrown
25-04-10, 04:36 PM
it would take more than just a modded airbox, surely....... i mean, a decent cone filter only gives about 5hp,
i know a hard cam & removing the rev limiter would be a huge hp gain, but only on a circuit...

any chance you have the article knocking about?????

My GTE engine had no limiter, IMO no point, reved well out the red line, but was no power up there.

Cam, Headwork, Bigvalves, flowed etc, full exhaust system, and then jenvey throttle bodies, and some management.

Or spend £300 on a c20xe for the same powerlol

mowgli
25-04-10, 04:44 PM
Or spend £300 on a c20xe for the same powerlol

if you could get me a c20xe up & running street legal & mot'd in my car for £300 including the engine, i would give you a kidney...... or you could just sod off as i am not fitting one...

£300 will rebuild my existing engine, pay for the headwork & probably a cam grind

i don't want an xe, i am looking at doing this more for the actual exercise of tuning up an engine. i don't want to go up the strip @ the pod, i don't do Kroozes, i rarely even get involved in races, i am more interested in just improving what i've got.

AND as my car has only done 9500 miles, i am no way going to start mashing chassis legs & welding bits into it.

Danny s-p
25-04-10, 08:31 PM
please explain......just what is a phase 3 head on a n/a engine..........

throttle bodies are way over my almost non-existant budget

live remap????? i have a bosch l3.1 jetronic, it is basically an analogue circuit... it is also impossible to remap
dose this mean the engine i have got has not been chipped as the seller told me it had :confused:

John
25-04-10, 09:13 PM
it would take more than just a modded airbox, surely....... i mean, a decent cone filter only gives about 5hp,
i know a hard cam & removing the rev limiter would be a huge hp gain, but only on a circuit...

any chance you have the article knocking about?????

Sorry i didn't explain myself, the car had other mods too, iirc a big cam and head work. will try see if i can dig it out. The results showed a derestricted airbox with panel filter and decent, big cold air feed showed about 10 brake. All done on the rollers.

mowgli
25-04-10, 09:21 PM
[/b]dose this mean the engine i have got has not been chipped as the seller told me it had :confused:

the bosch system really is basic.... there isn't a magic chip, like some ecu's, gm did manage to uprate them for groupA competition use but i don't know how

Danny s-p
25-04-10, 09:40 PM
the bosch system really is basic.... there isn't a magic chip, like some ecu's, gm did manage to uprate them for groupA competition use but i don't know howthey used it in rallying and said the owner before them had it chipped i don't no wot group they used it in tho

Andy
25-04-10, 09:46 PM
does the group a build manual have any useful engine info?? or is it just shell prep??

mowgli
25-04-10, 09:55 PM
does the group a build manual have any useful engine info?? or is it just shell prep??

that is simply a kit fitting instructions book.....

the big thing with groupA was that they couldn't mod the head or manifolds, so it basically got 12:1 cr pistons, and they ran on german 4star

mowgli
25-04-10, 09:59 PM
right, having spent an age going thru a valve book, i reckon bmw m40 engines have suitable valves..........anyone got access to them???

Stuart
25-04-10, 10:03 PM
right, having spent an age going thru a valve book, i reckon bmw m40 engines have suitable valves..........anyone got access to them???

any good engine builders can sort it ;)

mowgli
25-04-10, 10:06 PM
any good engine builders can sort it ;)

stu, i was more hoping for someone who worked at a place with them in stock so they can check them........

i have found stock in GSF Spares in leicester, but its a right pain to get there