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Ported M90 Pix! Show them here!

WHT98GTP

WHT98GTP

New member
Hey! Wanted to see some pictures of home-ported M90 Eatons.... I am about to port my blower and wanted to see where people are taking off some material and where not to... :-) Everything from mild to wild.
 


270599_2108937133290_1541433387_32127797_2527397_n.jpg



Its pretty crappy. Ignore the H-bar.
 
That's not bad... Is there actually a benefit to taking to the H-bar out? I am gonna post pix of my work from today a bit later... Still at it.
 
WHT98GTP said:
That's not bad... Is there actually a benefit to taking to the H-bar out? I am gonna post pix of my work from today a bit later... Still at it.
Click to expand...

Only if you plan on intercooling. Otherwise leaving the "H-Bar" won't hurt anything...

I don't have a picture...if I do I'll have to do some digging...but, here is what mine sounded like. Reptile on here ported and polished the inlet/outlet and the entire supercharger itself.

XP Cam Start-Up - YouTube
 
I would take some out of the bottom of the triangle like I did. This is how zzp has their blowers ported.
 


bluegtp91 said:
Only if you plan on intercooling. Otherwise leaving the "H-Bar" won't hurt anything...

I don't have a picture...if I do I'll have to do some digging...but, here is what mine sounded like. Reptile on here ported and polished the inlet/outlet and the entire supercharger itself.

XP Cam Start-Up - YouTube
Click to expand...

Sweet. Sounds good man... I dunno what i am gonna do about the inlet yet... Gotta track down a TB... Which is better, a northstar or a LS?
 
Yes^^...but...

Probably neither...what are your mods?

You'd benefit most from a hogged out stocker most likely...after the reinstall get the car re-tuned for the mods.
 
I will have the following when its all said and done and reinstalled in the car (building a whole motor)
Intercooler
XP Cam
Ported Heads
Full SS headers and Cat delete
EGR delete
Ported LIM
CAI
3.2 MPS (to start)
Full built bottom end (still debating Comprassion Ration to use)
 
N*'s are more readily available...but my LS1 is bigger...but I don't know if anyone still makes a adapter place for it...I have one, it was custom made.

You'd also need to break the throttle bracket...and flip it over and re-weld it...then make your own throttle cable bracket too.
 


What year N* TB should I look for? What size motor? I am going to the junkyard this week, so I will look around... Will the sensors still clip in or should I use the ones off my TB? Does the N* bolt right up to the Gen 3?
 
Nope, you'll still need an adpater plate for the N*...as for years...I know the DeVille and Aurora...I think...you can yank them off of them, since I don't have one...I'm not sure.
 


bluegtp91 said:
Nope, you'll still need an adpater plate for the N*...as for years...I know the DeVille and Aurora...I think...you can yank them off of them, since I don't have one...I'm not sure.
Click to expand...
Deville, Seville, Aurora, and GXP Bonnies all should work shouldnt they? They're all Northstars. But isn't the Aurora a 4.0 where as the Seville, Deville, and Bonnie are 4.6.
 
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