My 400whp saga, 373whp after mapping.

Discussion and technical advice the SW20 MR2. 3S-GTE, 3S-GE, 3S-FE etc
Anything and everything to do with maintenance, modifications and electrical is in here for the Mk2.

Moderators: IMOC Moderators, IMOC Committee Members

Post Reply
androo007
Posts: 2363
Joined: Mon Mar 03, 2014 1:43 pm

Re: My 400whp saga, 373whp after mapping.

Post by androo007 »

No sorry mate, just the ratio
User avatar
Ryan S
IMOC Moderator
Posts: 10902
Joined: Sat Dec 10, 2005 1:32 pm
Location: Bonnie Dundee
Contact:

Re: My 400whp saga, 373whp after mapping.

Post by Ryan S »

No worries man, Hopefully Toyota don't dick me about too much tomorrow ha!
fahad1417
Posts: 49
Joined: Fri Sep 23, 2016 12:59 am
Location: birmingham

Re: My 400whp saga, 373whp after mapping.

Post by fahad1417 »

Loving this thread Ryan, keep it updated!
User avatar
Ryan S
IMOC Moderator
Posts: 10902
Joined: Sat Dec 10, 2005 1:32 pm
Location: Bonnie Dundee
Contact:

Re: My 400whp saga, 373whp after mapping.

Post by Ryan S »

Will do bud! Having bother with my clutch at the moment 🙄

The adapter from goodrigde seems to be the wrong size and is alloy so is all chewed up now. There's a hydraulic place near me so gonna see if i can get the right one tomorrow. Once the clutch is done i should be able to take it for its mot and get my engine run in!
Buster
Posts: 125
Joined: Sat Jul 21, 2018 3:47 pm

Re: My 400whp saga, 373whp after mapping.

Post by Buster »

Lovely work.
User avatar
Ryan S
IMOC Moderator
Posts: 10902
Joined: Sat Dec 10, 2005 1:32 pm
Location: Bonnie Dundee
Contact:

Re: My 400whp saga, 373whp after mapping.

Post by Ryan S »

Buster wrote:Lovely work.


Cheers mate, It was lovely until I had to remove the car from my old garage and it sat outside for months :( I'm not overly fussed about what the engine looks like anymore. So long as it runs and is reliable.
gmac90
Posts: 155
Joined: Wed Jan 28, 2015 7:40 pm
Location: Perth

Re: My 400whp saga, 373whp after mapping.

Post by gmac90 »

Good work man its been along time coming...when you able to take this out out and MOT'd would love to see it on the road and if your driving through to perth from dundee you can stop off in Errol at my garage ao I can have a swatch :lol:
User avatar
Ryan S
IMOC Moderator
Posts: 10902
Joined: Sat Dec 10, 2005 1:32 pm
Location: Bonnie Dundee
Contact:

Re: My 400whp saga, 373whp after mapping.

Post by Ryan S »

I deffo will mate! Just waiting on my bellhousing bolt from toyota then I can crack on. Kinda been putting it off with this cold weather anyway! Never realised you were just along the road!
gmac90
Posts: 155
Joined: Wed Jan 28, 2015 7:40 pm
Location: Perth

Re: My 400whp saga, 373whp after mapping.

Post by gmac90 »

Yeah man that would be ace... I was quite active on here and then just didnt really have time when I was starting my own place up but thats me been going for about 2 years now ( I'm right next to Morris Lealie Auctions) and I'm thinking of going for 400hp in mine... ive got and engine sat here just waiting to get money to buy the bits and then I'll be doing it ......

just a quick one what brakes are you running for 400hp ? Mine are a bit xxxxx at the minute so just wondering if its worth upgrading now for future proofing or will the stock rev3 tubby ones do the trick?
User avatar
Ryan S
IMOC Moderator
Posts: 10902
Joined: Sat Dec 10, 2005 1:32 pm
Location: Bonnie Dundee
Contact:

Re: My 400whp saga, 373whp after mapping.

Post by Ryan S »

gmac90 wrote:Yeah man that would be ace... I was quite active on here and then just didnt really have time when I was starting my own place up but thats me been going for about 2 years now ( I'm right next to Morris Lealie Auctions) and I'm thinking of going for 400hp in mine... ive got and engine sat here just waiting to get money to buy the bits and then I'll be doing it ......

just a quick one what brakes are you running for 400hp ? Mine are a bit xxxxx at the minute so just wondering if its worth upgrading now for future proofing or will the stock rev3 tubby ones do the trick?


i have the big brake kit with the brackets. it's 200sx calipers (i can use 300zx too) and supra discs. However, Carbotech pads on stock brakes should be fine.

Let me know when you're doing your build. My mate kris isn't far from errol. His knowledge on 3sgte is insane.
gmac90
Posts: 155
Joined: Wed Jan 28, 2015 7:40 pm
Location: Perth

Re: My 400whp saga, 373whp after mapping.

Post by gmac90 »

Sweet will do cheers man, ive been looking at a turbo kit from koracing but if you out me in touch with your mate might be worth talking to him first to see what he thinks before I go and buy stuff
User avatar
Ryan S
IMOC Moderator
Posts: 10902
Joined: Sat Dec 10, 2005 1:32 pm
Location: Bonnie Dundee
Contact:

Re: My 400whp saga, 373whp after mapping.

Post by Ryan S »

ach to be honest if you have the funds for a full kit then I would go that route. Kris would tell you the same man. i'll give you the full spec of my car including costs. machine work is always the biggest issue. that and fab work.
gmac90
Posts: 155
Joined: Wed Jan 28, 2015 7:40 pm
Location: Perth

Re: My 400whp saga, 373whp after mapping.

Post by gmac90 »

The full spec would be awesome not that I'm going to "steal" your ideas or that just as a guide.

Yeah my mate works at AGRA and he says the head work is expensive block work not so much but still its all a big cost, hes just had a guy bring a 3sgte in and it was xxxxx beyond repair guy says he paid £1000 for it to be a good engine :oops:
User avatar
Ryan S
IMOC Moderator
Posts: 10902
Joined: Sat Dec 10, 2005 1:32 pm
Location: Bonnie Dundee
Contact:

Re: My 400whp saga, 373whp after mapping.

Post by Ryan S »

na steal away man, there's no hidden secrets here haha.

AGRA quoted me 250 quid a cylinder for honing! So if you have a mate that works there that is mega handy!!

So spec is:
ARP head studs
rev3 head gasket (from toyota)
clevite 88 rod bearings
arp rod bolts (totally not necessary)
86mm CP pistons compression ratio 9.01. personally the CR is up to you. I'm certainly not away to get into it on here. Kris car has the same CR and has no issues. The caldina uses the exact same CR on the "gen 4" 3sgte so why the hell not.
all pumps, belts and gaskets are split new toyota items
Sytec adjustable fuel pressure regulator
I have a borg warner s252sx-e turbo which used to come in a kit for the mr2 but the company went bust
walbro pump (yet to be fitted)
frozen boost chargecooler core, PWR pump, pre-rad.
Custom side feed inlet manifold with Q45 throttle body.
Clutch masters fx400 6 puck clutch.
supertech valve stem seals
ported and polished cylinder head
800cc SARD injectors.
valves all relapped and seated
coil on plug conversion
Berk exhaust

oh, link G3 ecu. Kris wired all that in for me, I'm sure he'd help you out and will be much cheaper than taking it to a specialist. He did the full wire tuck on my car. the loom only had one single issue which was a break in a wire from the coolant temp sensor. He did a cracking job but obviously can't help a wee break in a 25 year old wiring harness.
deffo go with a link ECU then there's at least me and Kris locally who can help get it up and running for you.

You'll need to get your block acid dipped, i would personally get it to the machine shop first and get the bores measured to see if it can take 86mm pistons. if not, get another block that can. My own block that came out the car had some "ovalling" the engineer reckoned the car had over 140k on the engine despite the clocks only showing 100k. once you have a suitable block, acid dipped, skimmed, honed. Then piece it altogether.

it's a loooong long process. In fairness I never touched the car for over 2 years when my dad passed away.

I've probably missed out loads of stuff so feel free to ask.
Last edited by Ryan S on Thu Jan 24, 2019 9:42 pm, edited 2 times in total.
User avatar
Ryan S
IMOC Moderator
Posts: 10902
Joined: Sat Dec 10, 2005 1:32 pm
Location: Bonnie Dundee
Contact:

Re: My 400whp saga, 373whp after mapping.

Post by Ryan S »

my best advice is don't put the car off the road to do it. Build up another engine ready to drop in. The amount of nuts and bolts etc that I've lost due to moving the car twice is mental it really is. you'll save yourself such a headache doing it all off the car. Get a new loom if needed etc. Have it all ready to go. If you have a turbo kit that you know will bolt right on then again that's time and hassle saved.
gmac90
Posts: 155
Joined: Wed Jan 28, 2015 7:40 pm
Location: Perth

Re: My 400whp saga, 373whp after mapping.

Post by gmac90 »

That's some amazing specs you've got, I was looking at using the EMU ECU as i have worked with them before and comes with lengths of wires to make your own loom up,

Again going down the LINK route would mean more people have more knowledge of them I have seen Russ at RA doing some mapping before and what he knows about mapping is insane.

Yeah I took my engine out first time to do it and I think I lost every bellhousing bolt so had to buy some more its a proper pain in the ass hunting for stuff.

So did you not want to go oversized for the pistons? I was looking at the 86.5 CP pistons and was going to go for some Manley rods just while I was in there

was looking at this kit http://www.koracing.net/viewproduct.php ... roduct=453 with the precision 5831 turbo

How have you routed the side feed inlet manifold coz I was looking at them aswell and not sure how it would look with charge cooler and piping, are you into your boot space for piping and pumps etc? I guess I could just wait till you bring it over so i can see it all for myself :lol:
User avatar
Ryan S
IMOC Moderator
Posts: 10902
Joined: Sat Dec 10, 2005 1:32 pm
Location: Bonnie Dundee
Contact:

Re: My 400whp saga, 373whp after mapping.

Post by Ryan S »

It's generally recommended not to go over stock size pistons. There's been plenty cars with 87mm pistons and no issues, blocks have cracked with 86mm pistons but generally considered that taking metal away from the bores on a 3sgte is not recommended.

as for rods they are good for at least 635bhp that I know of. So unless you plan to go over that rods are pointless.

With the side feed manifold it's a very very short distance from turbo to chargecooler then to inlet. Basically mount the CC core above where the air filter sits then a pipe right to the side feed. about 2.5 foot of piping in total.

Deffo go link mate. Russ is the best and knows link already. plus he's so close it'd be silly not to. I can't see any benefits of any aftermarket ECu over any other aftermarket ECU, they are all much a muchness so save yourself time and travelling etc. The link has launch control, antilag etc. You can get a plug and play link or like mine it just came with the plugs with wires coming off wired into the OEM loom.

Kris actually had a pte5831 that he was going to sell me but it ended up sold before I had funds. I can imagine it being a great turbo!! Journal bearing to so very robust!
gmac90
Posts: 155
Joined: Wed Jan 28, 2015 7:40 pm
Location: Perth

Re: My 400whp saga, 373whp after mapping.

Post by gmac90 »

Thats good news about the rods I wasnt 100% sure what the rating was for them... toyota defo over engineered thier engines back inthe day.

Are you still using the stock exhaust manifold ?

Going to look into link now I like the idea of redoing the engine loom
With fresh wiring then I'll know its all above board.

Think my daytona grey mr2 and your yellow mr2 would compliment each other very nicely lol
User avatar
Ryan S
IMOC Moderator
Posts: 10902
Joined: Sat Dec 10, 2005 1:32 pm
Location: Bonnie Dundee
Contact:

Re: My 400whp saga, 373whp after mapping.

Post by Ryan S »

I do like the grey coloured ones! Yeah I'm just on stock exhaust manifold, i always planned to get a decent one but simply never got round to it!
User avatar
Ryan S
IMOC Moderator
Posts: 10902
Joined: Sat Dec 10, 2005 1:32 pm
Location: Bonnie Dundee
Contact:

Re: My 400whp saga, 373whp after mapping.

Post by Ryan S »

Finally my bolts and spacers arrived. Can crack on with this now.Image
Post Reply

Return to “MR2 MK2 1990 - 1999 NA & Turbo”