Alternative Port EFI IntakesThis board is for tech discussions and questions about aftermarket port EFI such as the HSR, MR, SR, BBK, FIRST, etc.
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I'm thinking of pulling my comp XE284(240/246 .507 .510) Flat tappet cam from my 406. I think its power band doesn't match that of the SuperRam I have on the motor. The XE284 makes power from 2300-6500, but the SuperRam is done by around 5400RPMs..So I'm looking to go with a roller cam. I'm hearing good things about the TPIS ZZX cam. I have also heard good things about the LPE219 but think it would be to small for the 406. So let me know what you guys are running in you SuperRam big cubic inch small blocks?..I'm attaching a dyno sheet showing how my XE284 Cam never got to make power over 5400. So I'm looking for this roller cam to make its max power below 5500.
In the past, when I couldn't find THE camshaft for an engine combination I called the tech guys at Comp Cams (with one of their cam sheets fully filled out) and had them build me a custom grind.... It's not all that much more and my experience has always been to end up with a cam that is absolutely correct for my car.... A custom grind does come out a lot cheaper then 2 or 3 attempts to buy the correct off the shelf grind......
__________________ Of course it's for sale!!! Everything is for sale!!!!
Camaro and other projects pictures can be seen at:
A custom grind does come out a lot cheaper then 2 or 3 attempts to buy the correct off the shelf grind......
espcially, IIRC comps cams are priced based on the cost of the cam core, so whether the cam is off the shelf or custom, it will cost the same as long as the core is the same material. (billet, cast, ect.)
You will want a cam with good lift while keeping the duration on the mild side. This will help you in making midrange. I like the aggressive ramp of the XFI lobes but do not care for the 113lsa that the off shelf are ground with.
PM me and I'll send you a grind.
__________________ D&Z Performance
"Putting Power to the Pavement"
You will want a cam with good lift while keeping the duration on the mild side. This will help you in making midrange. I like the aggressive ramp of the XFI lobes but do not care for the 113lsa that the off shelf are ground with.
PM me and I'll send you a grind.
I spoke to Comp Cam tech yesterday and the said I'd want to go with the
Comp 280 XFI HR13
230/236
.540 .537 .576/.570 with the 1:6 Roller Rockers i'm using
part # 12-467-8
im running an lpe219 with 1.6 rockers. it should be bigger for a 406.
__________________ 1985 IROC Original Owner.Original silver paint, Roller 406c.i., 4 bolt, Superram, accel DFI 6. serpentine setup, Factory GM 1LE brake set-up, richmond 5 speed, 1 3/4 slp, jet hot, gale banks 2OTL power pack (vintage), eibach, grey leather flo-fits, A/C delete, 29k original miles and never been driven in the rain. all original parts are on the shelf. original window sticker and build sheets. 1996 Z28 M6 LT4 kit, hotcam, obd1, C5 brakes. And then theres the road runner.
14psi, pump gas street tune 
1985 IROC Original Owner.Original silver paint, Roller 406c.i., 4 bolt, Superram, accel DFI 6. serpentine setup, Factory GM 1LE brake set-up, richmond 5 speed, 1 3/4 slp, jet hot, gale banks 2OTL power pack (vintage), eibach, grey leather flo-fits, A/C delete, 29k original miles and never been driven in the rain. all original parts are on the shelf. original window sticker and build sheets. 1996 Z28 M6 LT4 kit, hotcam, obd1, C5 brakes. And then theres the road runner. 
