5.2 magnum GT35 to S475
- Thread starter Turbosmblk
- Start date
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Turbosmblk
Well-Known Member
Stock head bolts and 540SD gaskets. I went this route intentionally as they would be the “fuse” in the combo and potentially keep me from hurting parts. If I did in fact lift a head I will throw studs and cometics on now that I know enough to be dangerous on the laptop lol
Awesome project! What's the difference between the Jeep and truck magnum exhaust manifolds?
Turbosmblk
Well-Known Member
The driver side is the same I think. But the passenger side exits higher up and point at like a 45* so you can run power steering if you use a Jeep pump and bracket.
I wasn’t aware the truck and Jeep manifolds were different. Thanks for the heads-up!
I want to eventually run a turbo 318 (roller LA) in my D150. My very rough idea is to run flipped, magnum manifolds with the turbo mounted behind the passenger headlight. There’s a lot of room in that position and the exhaust runs down the passenger side of the truck, unless I want to relocate the gas tank.
I want to eventually run a turbo 318 (roller LA) in my D150. My very rough idea is to run flipped, magnum manifolds with the turbo mounted behind the passenger headlight. There’s a lot of room in that position and the exhaust runs down the passenger side of the truck, unless I want to relocate the gas tank.
Turbosmblk
Well-Known Member
I believe my cooling issues are taken care of. Pulled the temp down from 180 to 170 in 1 minute last night at only 65% duty cycle. Hood closed, no exhaust wrap, no turbo blanket nothing to help under hood temps. For a 14” deal this sucker moves air. You can feel it blowing out behind the passenger front tire. I have done some digging on head gaskets/torque and I may have caused myself an issue. Apparently magnums torque to 105ft/lbs from the factory and LA’s torque to 85…… well I torqued em to 85 cause that’s all I’ve ever messed with. Could explain it sealing running around but pushing water when under boost. So, I’ll be torquing to 105 and see what happens.
Congrats on getting the cooling situation squared. Leaks and cooling issues drive me nuts.
TT5.9mag
Two atmospheres are better than one
What fasteners are you using? That’s what will determine the torque value. Also, on almost every engine I’ve put boost on, I go back after a few heat cycles and retorque the heads. I’m not sure it does much but it makes me feel better.
Edited to add;
Just saw post 52, stock head bolts. You need better fasteners. But at least get the torque up to spec then heat it up and retorque em.
Magnum based heads? If so I've got a set of ARP bolts I can sell you real cheap.
Turbosmblk
Well-Known Member
They’re Indy but yes mag based. I’d be interested.
Your inbox is full
Turbosmblk
Well-Known Member
Should be good now.
Turbosmblk
Well-Known Member
I thought he was studded? I assume you’re referring to the white truck that currently holds the sbe record.
I guess I didn’t even realize there was a magnum sbe record, but if you’re referring to ThatTurboDakota on YouTube; not him.
He used to post as Duner on DakotaRT.com when it was still around. Not sbe.
I think he may have some posts as MadDuner on here.
Here is a build list he posted years ago. He used to contribute a significant amount of r&d content in the Dakota rt world.
He used to post as Duner on DakotaRT.com when it was still around. Not sbe.
I think he may have some posts as MadDuner on here.
Here is a build list he posted years ago. He used to contribute a significant amount of r&d content in the Dakota rt world.
Turbosmblk
Well-Known Member
I Think the water issues are resolved. Made a pull last night and didn’t put a drop in the catch can. I did buy some ARP bolts from dnasty777 but will stash them back until I have to put cometics on. I hope to make it to the track weekend after next and see what it’ll actually do on a radial and no timing retard.
Turbosmblk
Well-Known Member
Finally made it to the race track last night. we’ve been dealing with lots of rain here so basically every weekend for the last 2 months it’s been rained out. First pass went 8.35 leaving on 5psi and 8 down track really conservative on timing. Turned it up to 11lbs and went 8.17. Added 2 deg and went 7.92 and picked up 3mph. Added 2 more deg and left at 7lbs and went 7.81. For my final pass I left at 8lbs and 11lbs down track. I’ve got the time slip below. Overall I’m super happy. The bump wasn’t working so my reaction time looks like I was making lunch at the tree LOL. I hope I can get this thing down to 7.0s with some work.
Turbosmblk
Well-Known Member
No sir. I’m in the southeast so everywhere that’s not an outlaw track is radial prep every time the gates are open.
TT5.9mag
Two atmospheres are better than one
Turn that ***** up!! Kidding don’t break parts on my behalf. But I think there’s a bunch left in it.
Turbosmblk
Well-Known Member
Yea that’s the plan next time out. I had my last pass tune set at 10lb leave but forgot to load it. I’ll probably start there first pass next outing. I fully intend on pushing things pretty hard. It’s a $200 motor and nobody seems to lean on these things to see what they’re really capable of. I see now reason why they can’t run with an LS if you take the same approach with tuning. Soft timing, rev em way past peak torque and feed it boost
TT5.9mag
Two atmospheres are better than one
I’m so on board with that. Have someone take video!
Let her eat!
Turbosmblk
Well-Known Member
TT5.9mag
Two atmospheres are better than one
That plug looks hot.
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