Shea
Enthusiast
- Total Posts : 281
- Scores: 0
- Reward points: 3750
- Joined: 2011/08/01 11:02:49
- Location: SA Australia
- Status: offline
RE: mk2 sr20det
2009/07/14 20:29:04
(permalink)
well next up im going to make some templates from cardboard for the tunnel, then ill get some sheet metal and bend them up and tack in place, my migs not heaps powerfull so i might get my boiler maker mate to help me out, then hopefully in the next few months when it warms up i can get some paint down in the bay, that would be so cool.
thinking about fitting a bigger intercooler atm, maybe even a custom jobbie because i dont like the restrictions with what ive got. best bet would be an intercooler that wraps around the radiator with top rear outlet's, would be basically straight lines to the turbo and throttle body.
|
Shea
Enthusiast
- Total Posts : 281
- Scores: 0
- Reward points: 3750
- Joined: 2011/08/01 11:02:49
- Location: SA Australia
- Status: offline
RE: mk2 sr20det
2009/07/14 20:52:00
(permalink)
andy while ive got ya here, what did you do to your inlet manifold? it looks live youve cut and welded a plate on the front to make it shorter (and take a bigger tb). does this effect the flow of the manifold / performance / response (obviously the bigger tb would)? and is it something i should look at to lessen the bend around my radiator? if im going to bother with that should i upsize to around an 80mm tb?? i couldnt see it being too hard to modify a larger intercooler to convert from side to rear entry.
|
510pom
Enthusiast
- Total Posts : 124
- Scores: 0
- Reward points: 1286
- Joined: 2011/08/01 11:02:49
- Location: brisbane qld Australia
- Status: offline
RE: mk2 sr20det
2009/07/14 21:53:17
(permalink)
hey Shea yep the throttle body is a 75 mm one after a lot of research i was told buy a lot of people 75 would be the way to go as 80mm was to big .i did chop the manifold to accept the bigger inlet and make more room as the throttle body could not be any thinner . the gains of course are the flow i had 3inch out of the cooler and 3 inch into the manifold i belive this made a good response differance and made the flow path more direct . i would also wrap the outlet pipe from the cooler in heat wrap to keep the cool air in this all helps in the long run . fussy but worth it .as for the cooler my cooler was side in/outthen changed to rear no probs at all i did not weld it but was fine just gave it a good clean . any other questions just ask or call if you didn't get my number let me know and ill pm it . cheers Andy ps the best mod i did to the car were lightened fly wheel and cams well worth it and the cams were split .
|
Shea
Enthusiast
- Total Posts : 281
- Scores: 0
- Reward points: 3750
- Joined: 2011/08/01 11:02:49
- Location: SA Australia
- Status: offline
RE: mk2 sr20det
2009/07/15 19:57:07
(permalink)
cheers andy. is that tig welding on the cast aluminium?
also when you said you converted your intercooler, do you mean you got someone else to weld it?
cams are on the list once im "bored" with the power, but i have heard mixed things about lightened flywheels. does it loose revs easily going up hills?
also cant seem to find any 75mm tb's, only 70's, 80's and +++
im planning on keeping all pipework to 2.5" because i will be running a low mount t28 eventually.
thats all i can think of for now. thanks Shea
|
Mickas
Aficionado
- Total Posts : 624
- Scores: -38
- Reward points: 757
- Joined: 2011/08/01 11:02:49
- Location: Gold Coast Queensland Australia
- Status: offline
RE: mk2 sr20det
2009/07/15 20:57:54
(permalink)
If you are only going a GT28 70mm will be plenty....
|
KIZZA
Aficionado
- Total Posts : 471
- Scores: 0
- Reward points: 4135
- Joined: 2011/08/01 11:02:49
- Location: melbourne vic Australia
- Status: offline
RE: mk2 sr20det
2009/07/15 22:06:47
(permalink)
what effects does having to big a tb have? mine is massive but will be a long time till I use it and I may change back to a more sensibly sized one if need be. its just what my plenum was made to suit.
|
esky79
Aficionado
- Total Posts : 305
- Scores: 6
- Reward points: 2716
- Joined: 2011/08/01 11:02:49
- Location: brisbane qld Australia
- Status: offline
RE: mk2 sr20det
2009/07/16 16:51:12
(permalink)
80mm will be fine... thats wat ive got... the standard throttle body is good for 600hp BTW
|
Sterling
Scholar
- Total Posts : 1060
- Scores: 0
- Reward points: 663
- Joined: 2011/08/01 11:02:49
- Location: Flinders VIC Australia
- Status: offline
RE: mk2 sr20det
2009/07/16 18:45:29
(permalink)
quote: Originally posted by Shea
andy while ive got ya here, what did you do to your inlet manifold? it looks live youve cut and welded a plate on the front to make it shorter (and take a bigger tb). does this effect the flow of the manifold / performance / response (obviously the bigger tb would)? and is it something i should look at to lessen the bend around my radiator?
if im going to bother with that should i upsize to around an 80mm tb??
i couldnt see it being too hard to modify a larger intercooler to convert from side to rear entry.

that is one beautful engine bay..
|
510pom
Enthusiast
- Total Posts : 124
- Scores: 0
- Reward points: 1286
- Joined: 2011/08/01 11:02:49
- Location: brisbane qld Australia
- Status: offline
RE: mk2 sr20det
2009/07/16 18:47:46
(permalink)
hey Shea not to sure on the welding on the manifold and the cooler was welded by a shop did a great job but i had 2and half into it 3inch out . as said previous standed one is good up in the hp , if only going t28 id leave it stock and save ya money , as for the flywheel i heard bad things about the alloy ones in quality and the reve drop off . i believe someone correct me if im wrong on the track the alloy one is ok but in hill climbs etc the drop in revs due to less momentum is a lot . i had a npc one half the weight and still good allround i loved it . how did you go with the rad Shea would you use the same agine? as i might get the same one .
|
510pom
Enthusiast
- Total Posts : 124
- Scores: 0
- Reward points: 1286
- Joined: 2011/08/01 11:02:49
- Location: brisbane qld Australia
- Status: offline
RE: mk2 sr20det
2009/07/16 18:50:25
(permalink)
cheers sterling bit sad its in vic now and not with me but soon ill be in a sr powered one again  just keeping it hush from the missus
|
KIZZA
Aficionado
- Total Posts : 471
- Scores: 0
- Reward points: 4135
- Joined: 2011/08/01 11:02:49
- Location: melbourne vic Australia
- Status: offline
RE: mk2 sr20det
2009/07/16 22:59:41
(permalink)
quote: Originally posted by esky79
80mm will be fine... thats wat ive got... the standard throttle body is good for 600hp BTW
mine is a nissan Q45 90mm. only reason I have it is it came with my custom plenum. Im now wondering if its to big? and whta effects could one thats to big cause?
|
Sterling
Scholar
- Total Posts : 1060
- Scores: 0
- Reward points: 663
- Joined: 2011/08/01 11:02:49
- Location: Flinders VIC Australia
- Status: offline
RE: mk2 sr20det
2009/07/16 23:07:45
(permalink)
quote: Originally posted by 510pom
cheers sterling bit sad its in vic now and not with me but soon ill be in a sr powered one again just keeping it hush from the missus
haha good luck mate.
|
510pom
Enthusiast
- Total Posts : 124
- Scores: 0
- Reward points: 1286
- Joined: 2011/08/01 11:02:49
- Location: brisbane qld Australia
- Status: offline
RE: mk2 sr20det
2009/07/16 23:18:39
(permalink)
hey kizza when i was checking up on sizes for the throttle body wasp performance had a s15 there own car and ran back to back tests on there dyno and they said they lost power with the larger one i did see some of there dyno read outs which did indicate to me 75 was better all round, i never brought a throttle body off them so there was no sales reason for the info and they seemed a good bunch of people with some good knowlage of the product  however if you have a larger one then you may as well try it but it may suffer with response ? poss ?
|
Shea
Enthusiast
- Total Posts : 281
- Scores: 0
- Reward points: 3750
- Joined: 2011/08/01 11:02:49
- Location: SA Australia
- Status: offline
RE: mk2 sr20det
2009/07/17 03:12:39
(permalink)
andy mate, the radiator is a cheap option and would definately recommend it for a NA setup, not sure if you saw the photo's ive had to notch out the bottom of the radiator to get it low enough between the chassis rails.
if i were to do it again i would probably go something about 50mm skinnier (across ways) because the majority of the intercoolers on the market max out at 31"(787mm) which is including inlet out let pipes.
ive found a massive intercooler that has a 700 x 300 x 100core with tanks that i can modify to wrap around the rad.
if my measurements are correct i should be able to fit this behind the grill still! im a little concerned about the 100mm thickness because id rather keep it down to 80mm because now the crank wheel is closer to the rad.
dammit henry why couldnt you make the escort 20mm longer in the front!?!
if you dont mind me asking how much did you pay for your flywheel? and what should i expect for cams and valve springs?
|
Sterling
Scholar
- Total Posts : 1060
- Scores: 0
- Reward points: 663
- Joined: 2011/08/01 11:02:49
- Location: Flinders VIC Australia
- Status: offline
RE: mk2 sr20det
2009/07/17 10:16:31
(permalink)
quote: Originally posted by Shea
dammit henry why couldnt you make the escort 20mm longer in the front!?!
LOL sorry couldnt help myself thats funny as.
|