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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anesthes, nice set up, but we need to talk about your ignition wire routing. Seriously, if you have the same problem as me, burning wires on the headers, I would recommend Design Engenering Inc. heat sheath(?). I use them on my two headered cars with no burnt wires in three years. Elsewise, I think you got it goin' on.
anesthes, nice set up, but we need to talk about your ignition wire routing. Seriously, if you have the same problem as me, burning wires on the headers, I would recommend Design Engenering Inc. heat sheath(?). I use them on my two headered cars with no burnt wires in three years. Elsewise, I think you got it goin' on.
Rob
I've never had a problem with burned header wires on my fbody cars, but the headers on the vette run a little differently. I was gonna get some slip on boot covers to proteect them.
Joe - I'm kinda surprised you got a coil in the cap dizzy to work, too. Figured a small cap was required.....
A small cap or screw on coil in cap works, the clamp on style coil in cap won't clear the rear fuel lines out of the miniram (i tried). the screw on style is like literally 1/4" narrower and clears by like 1/8". heh
Some stuff on the vette is crazy tight, you should see the oil temp sender and gauge sender on the back of the block, which is also 1/8" from the dizzy and 1/8" from the wiper motor. Other things however have tons and tons of room.
Ah, I see now. I don't think the dizzy fitting or not has much to do with it being a Vette though, its all the LT1 or MiniRam style intakes and the fuel rail locations, right? I wouldn't want to try and fit a large cap with my SR either....
Bottom line is I've still got some differential between the two WB's, but I've got it down to .75 - 1.0 at idle and around 0.5 at cruise, a little less at WOT but it actually seems to flip-flop between the sides at WOT. So from all appearances, it is something inherent to the SuperRam. Guess I'll just tune for for which ever one appears to be the leanest to save engine damage. Especially if I ever decide to install that NEX kit I have sitting in the garage.....
Looking good guys!
I finally got my CAI to pan out (3.5" SS Pipe)
This is how it looks today so I figure I should post a pic before it gets any dirtier Been driving it for about a month of weekends now. Just looking for more power now.
Stock fbody covers for a pre 87 TPI car. I wanted to use the cast vette covers, but the rockers wouldn't clear. These clear the trickflow alum rockers.
Really? are they steel or aluminum? I like how those look and have been looking for parimeter bolt VC's... I definitly like the cast 'vette ones but I suspected that they'd be tight, I keep hearing that they'll work with double gaskets but I haven't found a set of them anywhere either.
Really? are they steel or aluminum? I like how those look and have been looking for parimeter bolt VC's... I definitly like the cast 'vette ones but I suspected that they'd be tight, I keep hearing that they'll work with double gaskets but I haven't found a set of them anywhere either.
Those are stamped steel. Pretty much the same as the centerbolt ones, just parimeter. I've tried a lot of covers over the years, and the OEM baffles are just the best.
The cast vette covers have these stupid tabs cast into them that hit the rockers. I guess they could be cut off, but i wasnt in the mood to try it and then have a tap later on.
I have a set of the cast Vette covers that I'm trying to get the grey off of now so I can polish them.
That stuff is tough, anyway do you think they will clear rollers if I cut them?
They are Harland 1.5's
Don't want to do a bunch of work just so someone else can use them.
Really hate the idea of double gaskets, thats just problematic.
Thanks antithesis, it seems that those valve covers from that era just look right under the hoods of our 3rd gens… I just need to get my mitts on some.
JP… I know I’ve seen them used with RR’s, but I don’t know if anything was done to use them. You know that you can get double thickness gaskets instead of using 2, right?
Thanks antithesis, it seems that those valve covers from that era just look right under the hoods of our 3rd gens… I just need to get my mitts on some.
JP… I know I’ve seen them used with RR’s, but I don’t know if anything was done to use them. You know that you can get double thickness gaskets instead of using 2, right?
JP… I know I’ve seen them used with RR’s, but I don’t know if anything was done to use them. You know that you can get double thickness gaskets instead of using 2, right?
Hmmm... I've never heard that before. May have to check that idea out. I just ordered a new set of the LT1/LT4 composite valve covers. Trying to see if they will quiet down the sound of the roller rockers (especially the ProMag steel ones I want to be able to put back on the engine). Hoping they'll clear the SR runners a little better, too.....
I have a set of the cast Vette covers that I'm trying to get the grey off of now so I can polish them.
That stuff is tough, anyway do you think they will clear rollers if I cut them?
They are Harland 1.5's
Don't want to do a bunch of work just so someone else can use them.
Really hate the idea of double gaskets, thats just problematic.
The 1.6 roller rockers (crane?) that come in the hot cam kit will fit the vette covers once clearanced.
The 1.6 roller rockers (crane?) that come in the hot cam kit will fit the vette covers once clearanced.
Yea, they’re the same as the crane golds.
They’ll work under the composite center bolt covers, it’s a fairly common thing to do with the LT1 4th gen guys
The pro mags are a tighter fit then most of the others… I know that they don’t won’t work with the stock breather baffles and the inner valve cover supports without a bunch of cutting
They’ll work under the composite center bolt covers, it’s a fairly common thing to do with the LT1 4th gen guys
The pro mags are a tighter fit then most of the others… I know that they don’t won’t work with the stock breather baffles and the inner valve cover supports without a bunch of cutting
You got that right. I am using stock L98 valve covers over 1.6 steel Pro-magnum roller rockers. I had to cut out a leg from each of the supports, then dimple out a portion of each of the ribs in the top for clearance. They look somewhat "odd" from the outside but they are nice and light and dont leak.
...as for the comment on the Pro-Magnums being loud: They are loud. In fact you can hear them ticking away so much that you would swear that there are a bunch of bad lifters in there! I've checked them a bunch of times, and the engine runs great & all, but I still feel weird whenever I sit in traffic and listen to all that clicking out front...
That's what I'm hoping the composite covers will help eliminate by "absorbing" some of that rattle. I'm also concerned about what the knock sensore will do with all that extra noise - nothing I hope!
...as for the comment on the Pro-Magnums being loud: They are loud. In fact you can hear them ticking away so much that you would swear that there are a bunch of bad lifters in there! I've checked them a bunch of times, and the engine runs great & all, but I still feel weird whenever I sit in traffic and listen to all that clicking out front...
my comp pro magnum 1.6 rockers are quiet as can be. were yours loud from the get go or did they develop the ticking as the miles are driven? i only have about 30 - 40 min. of run time on mine so far.
what is your oil pressure at idle? mine is around 40 psi after it warms up (hv moroso pump), maybe that is why mine don't make noise.
regardless, if mine develop the ticking later on, i will just need to remove the mufflers so i wouldn't be able to hear it any more
It has more to due with the cam profile than the pro-mags. If have had them on three different cams, first two were very noisey but the cam I have now, they are very quiet.
It has more to due with the cam profile than the pro-mags. If have had them on three different cams, first two were very noisey but the cam I have now, they are very quiet.
What were the differences in the cam profile that caused the PM's to be noisy? Just curious....
Here's mine, been driving it most of the summer. 383 bowtie block, Accel DFI intake, Accel 1200cfm progressive linkage, Accel Billet Dual Sync dizzy, FAST XFI ecm, cogged Vortech 12psi, etc, etc, etc. Fun to drive. 91 octane too.
__________________ Online Drag Racing -------Reaction Time Tester! Red 1982 Trans Am MSE Hooker 1 5/8 primaries, 3 inches back, 3:73s
Red 1990 Formula with ZZ4 motor, Hooker 2055s, American Thunder catback
Black 1991 GTA with 3 inch Flowmaster Catback system
Black 2002 WS6 Bone Stock
This is an olde pic of my 383 cid mini rammed motor. I'm running Edelbrock ported RPM heads, ZZ-X cam. I have since cleaned up all the hoses and plug wires. Added a new set of Jet-Hot coated Hedman Hedders. New valve covers too...I'm in the process of installing my ATI Procharger with a 3 core intercooler. After I'm done wit that I'll post a new pic.
[quote=TransAm12sec;3151361]Here's what I have on my harddrive.
What valve covers are those? I need something cheap for my truck and those look like they would fit in allright, almost look like a nicer version of the early 80’s stockers…
Seriously, if you have the same problem as me, burning wires on the headers, I would recommend Design Engenering Inc. heat sheath(?). I use them on my two headered cars with no burnt wires in three years. Elsewise, I think you got it goin' on.
