DIY:4g63DSM/4g63EVO7 hybrid..

[JayRome]

so just drove this in the wet.......

the new set up at 1.2bar (barely even hitting .8bar)

has rendered my 255 wide front tires completely useless! i think its time for wider rims....

 

[RipperXX]

Video or it never happened!

 

[Bo0sTdTsI]

Nice progress man very interesting.

 

[JayRome]

Video or it never happened!

yup yup when i get a chance!

 

[sniver]

So what are the bennifits to doing this without the MIVEC??? Is thjere something special about the head i haven't heard of like it flowing way better, wa bettr aftermarklet cam support or i it just one of those things thatyou did "because you know how and noone else has it"? I love the idea and the metal work inI just don't see the bennifits by loking at it and none are listed, so please fill me in i'm intrigued

Thoughts that came to my head when I looked at it;

No excessive radiant heat by the alternator,oil filter, or rad.
Less exhaust restriction do to larger bend radius'
No alternator relocation needed.
If you located the mbc in dash, you'd have less spike than if the turbo was up front.

Possibility of baking starters like an old v8 with headers.
Complicates turbo work, but doesn't make intake work easier.

--------

Now factor in Mivec and it gets interesting. I like the idea and craftsmanship here. Its refreshing to see people think outside the box.


Think about how much more room you have freed up to do something like Ray Peters did with that twin charger setup. Twin charged dsm, with mivec, and the power of evoscan and a evo ecu. Sounds fun! < /DREAM>

 

[JayRome]

Thoughts that came to my head when I looked at it;

No excessive radiant heat by the alternator,oil filter, or rad.
Less exhaust restriction do to larger bend radius'
No alternator relocation needed.
If you located the mbc in dash, you'd have less spike than if the turbo was up front.

Possibility of baking starters like an old v8 with headers.
Complicates turbo work, but doesn't make intake work easier.

--------

Now factor in Mivec and it gets interesting. I like the idea and craftsmanship here. Its refreshing to see people think outside the box.


Think about how much more room you have freed up to do something like Ray Peters did with that twin charger setup. Twin charged dsm, with mivec, and the power of evoscan and a evo ecu. Sounds fun! < /DREAM>

cheers mate...

actually my car was originally supercharged.... i believe i have crossed paths with Ray at one stage a very long time ago.....

link:http://www.dsmtuners.com/forums/newbie-forum/385200-diy-supercharger-4g63-warning-lots-photos.html


you are correct about the starter, its in the line of heat from the manifold, even though its been wrapped, it still gets fairly warm. I may have to make a blanket for it...

 

[El Cuervo]

Wow. That's intense Jay!! Thanks for making the impossible possible.
So questions if you don't mind:
How was the timing belt set? Any issues or anything different that one would do on a 6 bolt engine vs 6bolt block/evo head? Or is it just the same?

About the CAS: It seems that you placed it on the exhaust cam. Any compensations with this when using a 1g CAS? ex: does it have to be rotated 180* etc.

The problem that I see here with running this setup is that it would be extremely hard to build exhaust pluming between the firewall and the engine on a 1g dsm. Aside from the obvious nick-nacks back there. My biggest concern would be the frame/cross member that the rear motor mount is attached to.
I haven't looked under my car lately but from the last time I did, I remember being kinda crammed back there and not a whole lot of space for a Down pipe of sort. Now this is on a 1g and for what I remember but I could very well be wrong.

Either way, Kick ass work and please keep us posted Jay.

 

[JayRome]

Wow. That's intense Jay!! Thanks for making the impossible possible.
So questions if you don't mind:
How was the timing belt set? Any issues or anything different that one would do on a 6 bolt engine vs 6bolt block/evo head? Or is it just the same?

About the CAS: It seems that you placed it on the exhaust cam. Any compensations with this when using a 1g CAS? ex: does it have to be rotated 180* etc.

The problem that I see here with running this setup is that it would be extremely hard to build exhaust pluming between the firewall and the engine on a 1g dsm. Aside from the obvious nick-nacks back there. My biggest concern would be the frame/cross member that the rear motor mount is attached to.
I haven't looked under my car lately but from the last time I did, I remember being kinda crammed back there and not a whole lot of space for a Down pipe of sort. Now this is on a 1g and for what I remember but I could very well be wrong.

Either way, Kick ass work and please keep us posted Jay.

cheers bro!

what a lot of people don't realize is that the timing belt from 4g63 VR4 to EVO9 is the same... just the idler bearings and tensioner's are ever so slightly different.. So long as you follow the timing marks accordingly its fine ie: TDC on the block and line up the markings on the head (which ever head you are using) and it will be fine..

In regards to the CAS, its actually in the correct position as it would be on a VR4 or a DSM, so nothing was changed. It slots right in, just the original studs that come out of the head that hold the CAS on the VR4/DSM are missing, just have to either install some or use normal bolts.. . Just ground your idle set wire and adjust accordingly...

You are correct, my car is slightly different from a DSM as its a Galant/Eterna and the rear cross member is slightly more lenient in regards to space. although it still is possible. Using 2X2.5" pipes instead of 1X3" would be better although ground clearance can be an issue. Then again you guys have your brake booster on the left directly behind the intake manifold so heat would be a problem with it..

This set up is probably more suited to RWD and RHD 4G's as it would move the turbo away from the brake booster and create more space for turbo manifold designs.. Or a forward facing turbo mounted on top of the gear box....



finally found a bonnet scoop i liked.... and its actually made of cast alloy...

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[honda_burner]

How do you plan on feeding the mivec oil? is the port there already?

 

[Bud92gsx]

Ahh yes..This fully answers that pm

 

[nuclearr]

I just went out and too a photo of a 4g63 sohc head I have in the garage. the evo head only has 2 extra ports.

 

[DashLaflash]

I just went out and too a photo of a 4g63 sohc head I have in the garage. the evo head only has 2 extra ports.

From the pics it looks like the two extra ports on the Evo head would be blocked off by the SOHC head gasket. Somebody correct me if I'm wrong. It would be nice if there was no welding required.

 

[mysticj]

From the pics it looks like the two extra ports on the Evo head would be blocked off by the SOHC head gasket. Somebody correct me if I'm wrong. It would be nice if there was no welding required.

The 4G64 SOHC block have the extra oil drain ports to accommodate the Evo's ones. The head gasket will block off and seal the remaining coolant ports.

 

[JayRome]

you can swap the heads in any direction.... 1st gen to 3rd gen and vice versa

but yes welding will be required, it shouldnt cost to much to do if you talk to your machinist..

i'll post up some dyno charts when i get it tuned soon....

 

[InfiniteGSX]

Win! JayRome you are awesome!

 

[JayRome]

Win! JayRome you are awesome!

i'm glad to help the 4G63 community!

just a happy snap from tonight.. one of my latest projects leaving my garage...

Red VS blue... which would you choose?

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[hurricanecris24]

Blue!

 

[Bmxr152]

Red for sure

 

[InfiniteGSX]

I'd take the evo in a heart beat! My dream car right there! Wanna build one, one of these days but money doesn't grow on trees.

 

[JayRome]

I'd take the evo in a heart beat! My dream car right there! Wanna build one, one of these days but money doesn't grow on trees.

that Tommi Mak just put down 352kw yesterday.. its quite fun to drive.. no lag...

 

[gt35rx]

Awesome build! You make me wanna use this Evo 8 head I have in my garage and try this out.

Do you have any h.p./TQ numbers on your previous build before switching to the evo 7 head? Would be a great comparison.

 

[hubz91talontsi]

I'm curious on the actual gains from doing this also.

 

[JayRome]

Awesome build! You make me wanna use this Evo 8 head I have in my garage and try this out.

Do you have any h.p./TQ numbers on your previous build before switching to the evo 7 head? Would be a great comparison.

unfortunately i dont have figures, since i like to develop parts for the Mod scene down here, i tend to change parts on my car as often as i change pants.....

remember this was just my experiment/stepping stone to get the 1st gen/VR4 community into the MIVEC league!

i guarantee hp/kw/tq results onces the MIVEC head is up and running!

i'll update this once i begin work... again....

How do you plan on feeding the mivec oil? is the port there already?

sorry bro late reply to your question, there are a few points on the block where there are block off bolts/grub screws which were used when casting and drilling the oil path ways on our 1st gen/VR4 blocks.. they have high pressure oil behind them and should be enough to run the Mivec system.. other wise shouldnt be hard to tap the oil filter housing (after the oil filter) to supply the head with a braided line...

 

[JayRome]

Updates:
Toyota coils going in after EVO8 ECU install..

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no time to play with my Mitsu since other cars come in for upgrades...

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[RipperXX]

Is that a NSX? I bet thats a PITA to work on and upgrade...pricey to upgrade too. But it is sexy and a hell of a good cornering car.