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#1 |
Registered Member
Join Date: Feb 2001
Location: Berkshire County - Massachusetts
Posts: 735
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![]() I've made the decision and ordered a Victor Jr. EFI setup for my 393W. My current combo is and has always been a mismatch: Edelbrock Performer RPM upper, 351W truck lower 9pt. # 3880...if anyone has the specs on this please let me know), a 70MM TB, 30 lb. injectors, 75MM MAF, and a BBK Cold Air Kit. I've noticed on the track that I die after the 1st 80 ft, and my top MPH EVER was a 105. I run consistent 12's, but I know that this motor can make more power. I'm looking to get into the low 12's, and get in the 110-115 MPH range. What I'm moving onto is this: http://edelbrock.com/automotive/index.html
along with a 75MM TB (Check this link and let me know if this is a good deal: http://cgi.ebay.com/ebaymotors/ws/eB...spagename=WDVW) I've never heard of these people before but the price is good. I'm going to keep the BBK Cold Air setup for now, along with the 30 lb injectors and the 75MM PRO-M MAF unit. The more important question here is....am I going to make more power considering I'm keeping the Performer Heads?
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Red 1993 GT Street Machine Best E.T. - 12.41/Best MPH = 108 Engine is a 1969 351 block w/393 stroker kit. Dynamic Roller Myte C4, 8 pt cage. Edlebrock Performer heads and Victor Jr. EFI, FRPP 30lb injectors & Cartech fuel system. MSD ignition. Sothside Machine bars & Sub-frames, adj. upper's, 3.73's, Koni rear shocks, much more |
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#2 |
I'd rather be basketweaving
Join Date: Feb 2000
Location: Indianapolis
Posts: 2,551
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![]() I think the RPM is a good match for the heads you currently have. If you aren't planning on revving the thing a ton higher than currently, then I would bet you would actually lose horsepower with the victor intake.
I would suggest keeping your current intake, maybe porting it some, and getting some better flowing heads.
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NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft |
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#3 |
Registered Member
Join Date: Feb 2001
Location: Berkshire County - Massachusetts
Posts: 735
|
![]() That's a good point but how can I make good power when the RPM range on my lower intake is rated 1500-5500? Aren't I losing a bit of airflow in the 5800-6300 RPM range, when I need it the most?
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Red 1993 GT Street Machine Best E.T. - 12.41/Best MPH = 108 Engine is a 1969 351 block w/393 stroker kit. Dynamic Roller Myte C4, 8 pt cage. Edlebrock Performer heads and Victor Jr. EFI, FRPP 30lb injectors & Cartech fuel system. MSD ignition. Sothside Machine bars & Sub-frames, adj. upper's, 3.73's, Koni rear shocks, much more |
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#4 |
I'd rather be basketweaving
Join Date: Feb 2000
Location: Indianapolis
Posts: 2,551
|
![]() ohh, i didn't read the truck lower part of your original post. Definately get rid of that thing
![]() What cam is in the car? Is it something that will let you benefit from the high rpm capabilities of the victor intake?
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NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft |
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#5 |
Registered Member
Join Date: Feb 2001
Location: Berkshire County - Massachusetts
Posts: 735
|
![]() Well...the cam is a Ford Performance Solutions custom grind from FRPP "Z" cam design. The truck lower was all they offered at the time I built her, and now that I have spent time analyzing my runs & talking with people I just think that the engine needs a bit more air and timing. The funny thing about my lower is that it's stamped with a 3880 part number and I can't find that part number anywhere else.
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Red 1993 GT Street Machine Best E.T. - 12.41/Best MPH = 108 Engine is a 1969 351 block w/393 stroker kit. Dynamic Roller Myte C4, 8 pt cage. Edlebrock Performer heads and Victor Jr. EFI, FRPP 30lb injectors & Cartech fuel system. MSD ignition. Sothside Machine bars & Sub-frames, adj. upper's, 3.73's, Koni rear shocks, much more |
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#6 |
Registered Member
Join Date: Aug 2002
Location: Rochester
Posts: 553
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![]() You definetly made the right desicion on the Edelbrock intake. They are sweet peices.
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#7 |
Registered Member
Join Date: Feb 2001
Location: Berkshire County - Massachusetts
Posts: 735
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![]() Thanks...what can I expect in gains? I imagine that this will help me a little bit on my MPH.
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Red 1993 GT Street Machine Best E.T. - 12.41/Best MPH = 108 Engine is a 1969 351 block w/393 stroker kit. Dynamic Roller Myte C4, 8 pt cage. Edlebrock Performer heads and Victor Jr. EFI, FRPP 30lb injectors & Cartech fuel system. MSD ignition. Sothside Machine bars & Sub-frames, adj. upper's, 3.73's, Koni rear shocks, much more |
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#8 |
Registered Member
Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
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![]() Here is some positive news for you. On the 393 I helped my friend build we went from a 65mmtb to a 75mm tb and larger cold air intake and picked up 32RWHP.
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer |
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#9 |
Registered Member
Join Date: Aug 2002
Location: Rochester
Posts: 553
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![]() Thats pretty sick for just a TB and Cold Air setup.. Sweet!!!
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#10 | |
Registered Member
Join Date: Feb 2001
Location: Berkshire County - Massachusetts
Posts: 735
|
![]() Which larger cold air intake? I've always thought that the BBK is a bit small but all the other's suck in hot engine air, whereas the BBK puts the air filter in the fender well
Quote:
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Red 1993 GT Street Machine Best E.T. - 12.41/Best MPH = 108 Engine is a 1969 351 block w/393 stroker kit. Dynamic Roller Myte C4, 8 pt cage. Edlebrock Performer heads and Victor Jr. EFI, FRPP 30lb injectors & Cartech fuel system. MSD ignition. Sothside Machine bars & Sub-frames, adj. upper's, 3.73's, Koni rear shocks, much more |
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#11 |
Being stroked is great
Join Date: Oct 1998
Location: Alberta, Canada
Posts: 772
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![]() I think those Performer heads are way too small for a 393. Like, WAY too small. They're barely enough to feed a moderately built 302. A set of Victor Jr's would make a ton more power, as with the matching intake. You have a lot of cubes in there and need the airflow to make power.
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#12 | |
Registered Member
Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
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![]() Quote:
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer |
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