7MGTE build up questions.

[HKS_TRD]

I'll chime in here as I've played a little with the 7M too. Dont do camshafts unless you are going for a big turbo. I put a pair of HKS 264 /8.1 lift cams in mine when I had the hi flowed CT-26 and it made a little less power and lost midrange torque. The motor felt alot "softer" to drive. Though the power no longer dropped off past 5500 or whatever it was rpm and was now sustained to 7000rpm.

While the stock pistons will hold to a good power level, while its apart put in a set of forgies and also go 20thou over as honing on standard bore size with old motors can be hit and miss, just as 7M builds can be in general it seems.

I managed to make 300rwkw on the HKS bolt in intercooler but now run a TRUST unit. The HKS one had standard size outlets and my turbo to intercooler pipe was only 50mm diameter, cooler to TB was larger. The Trust cooler has larger outlets and I changed my piping to suit. Hard to find these intercoolers now. Problem as you know with 7M is the outlets need to be on the same side which makes it a little harder to do piping

Hope some of this helped
Dan

[boxh34d]

Thanks for that info, well and truly confirmed that it's not worth the effort of swapping cams, even if they were free.

+ rep

[ed]

fwiw: i finally got around to hosting the pics of my BHG and subsequent MLS gasket and machinework:

http://www.v-eight.com/tech_forum/viewtopic.php?t=216

cheers
ed

[boxh34d]

Thanks ed.


HKS_TRD:
What size would that trust cooler be??
Core Size - 520mm x 250mm x 80mm
Overall Size - 600mm x 380mm x 90mm
Pipework Size - 2.5 inch inlet/outlet
Tube and fin design, vertical flowing, in and out on same side??

One outlet pipe has a 90deg bend, and one is straight or there abouts??
I think I might have found one.

[HKS_TRD]

Hi there dont know the size off the top of my head but that does sound like my cooler, you got a pic of it? I've managed to make 364rwkw and I dont know exact inlet temps regigtered on the MOTEC but the tuner said there were no issues with inlet temps

[payney8]

so guys can any1 give me a list of what mods to do while the 7ms out keep in mind im already getting a mhg and arp studs and also what level should the block and head by decked to?

[Blackmk3]

Thanks quite interesting HKS_TRD reguarding the cams you used, i always thaught it would of made a diffrence

payney8, read ed_jza80 link that he posted that will give you a bit of infomation reguarding the 7m Machining of the block etc

List of mods to do while its out, id just get a full from the turbo back 3inch exaust, cold air intake, intercooler upgrade really, but thoses arnt really on the motor

Port wise the 7m is pretty good unless ur aiming for big power so i wouldnt bother paying somebody to port them out

Just make sure you do it once and do it right the story of the 7m or ul just be doing it again!

[boxh34d]

This is the trust cooler I have found.

[wiseco7mgt]

whats the core dimensions on that intercooler?that looks perfect for a ma61.ive seen a few cheaper intercoolers on ebay that have the inlet and outlet on the same side but i dont know how good they perform.id love to see a test.anyone?
http://cgi.ebay.com.au/FMIC-TURBO-In...QQcmdZViewItem
heres the type im talking about

[HKS_TRD]

Yep that looks like my intercooler. to fit that you have to remove the power steering lines that go over the stock intercooler and re-route them. IIRC you have to trim a little metal from the metal piece that the power steering lines orginally bolted to for the cooler to bolt up, and you have to use the forward most hole to mount it to or it sits on the wrong angle and the splash tray wont fit under the car

[boxh34d]

wiseco7mgt:
The core dimensions are mentioned in my above post.


HKS_TRD: Sounds like a win to me, might have to chase it up.
How is it in terms of pressure drop??


Has anyone taken a good look at the sump design and is it well designed, or would getting it modded with more baffles / trapdoors / windage trays etc be a good idea??
The said engine will see track day use>

[TheStitt]

I am also intrested n some sumps designs but the crown chassis doesn't really allow for much

Atm I have oil pressure issues under brakes on the street running sa 4M sump

[TheStitt]

You guys where asking about inlet manifolds.

Here are some pics of what we did to mine.

1 reason was to help it fit in the bay and the other was to shorten the inlet track

[HKS_TRD]

Now thats some lateral thinking!

[payney8]

how does it go with the fuel delivery being the the fuel flow is reversed to the injectors?