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10-01-2003, 10:09 AM
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#601 | | Senior Member
Join Date: Aug 2002 Location: Mesa, AZ: Transplanted from Chicago, IL
Posts: 1,824
| Nice work, way to get after it! |  
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10-05-2003, 06:43 AM
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#602 | | Member
Join Date: Apr 2003 Location: kansas city
Posts: 149
| Mike, (1bad91z)
sorry about all the cam Q's, but Ive got to get this right the first time. When I asked about what cam would work best in the 383 with tpi and vortec heads you told me the comp cams xr269hr, which is a good cam, but it is a Roller.
Im planning on using a flat-tappet cam. The closest I could find was the comp cams XE268H, custom marine cam.
The specs are:
Advertised Duration: 262/270
Duration @.50: 224/230
Lift: 477/480--------------------1.6rocker=509/512
LSA: 112
Those specs are with 1.5 rockers, Iam not sure if 1.6 rockers would be better but they would put the cam in the meat of the flow. something like 509/512. Is this a good cam to use, Its near identical to yours with the 1.6 rocker only its a flat tappet. I think this is the cam Im going to go with, but let me know what you think...
__________________ 87 Iroc Camaro 383ci Vortec Heads, 64cc (1.94/1.60 valves) Edelbrock RPM Air Gap intake, 750 Demon vac secondary, Comp Cams 493/508 lift with 224/230 duration @.50 110 lobe seperation, Harland Sharp 1.6 Rockers,Edelbrock Water pump B&M Aluminum Flywhee,l 2500 Stall, 3.73 gears, edelbrock 1 5/8 Headers Nickle-Chrome,Custom exhaust gutted (open) Smog/air delete ,Hei Distributor, To Much to list  | |
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10-06-2003, 12:36 AM
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#603 | | Senior Member
Join Date: Aug 2001 Location: Peoria, IL USA
Posts: 682
| I have used the comp cams marine series cams for LTR fuel injected engines and they work quite well. I think the one I used was a step down from what you have listed. The duration looks a little on the large side. | |
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10-06-2003, 11:30 AM
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#604 | | Senior Member
Join Date: Jul 2001 Location: Houston Area
Posts: 3,673
Car: Faster Engine: Than Transmission: You! | Yea, I think that cam would work out. WHy dont you want to go Hyd. roller ?
__________________
1991 Z-28 (Black - Hardtop) 355ci TPI/SLP, Ported Vortec heads, Comp XR276HR-12, Hooker 2210 Longtubes / custom 3" Y-pipe with 3 1/2" mufflex cat-back, Borg Warner T-56, PROM tuned by me!, 3.73's, Hotchkis suspension, custom high-flow lid and ram-air, and ALL the bolt-ons. | |
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10-06-2003, 02:39 PM
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#605 | | Member
Join Date: Apr 2003 Location: kansas city
Posts: 149
| I do, but its kinda expensive for retro-fit cams. And when I bought the 383 I got such a good deal I wasnt thinking about the 87 up deal. 800 bucks fully assembled forged pistons, and oil pan, balancer, speed pro forged pistons, Water pump. So I got a great deal, But now im seeing that a roller motor would have been better. Do you guys really think, Just switching to roller will add that much power??? how much are we talking here??? I thought rollers helped alot at higher rpms, but I really dont plan on going much higher then 5500-6000 so??? But Ive done lots of searches on it and everyone says roller is better, obviously, but by how much??? 20-30-40 horse, at what rpm??? Well Ive already got the heads and intake, So I guess if I went roller it would take a bit longer to get it in but, Im just curious if the 600 dollars is really worth it to go roller??? LET ME KNOW!!
iroczman380
__________________ 87 Iroc Camaro 383ci Vortec Heads, 64cc (1.94/1.60 valves) Edelbrock RPM Air Gap intake, 750 Demon vac secondary, Comp Cams 493/508 lift with 224/230 duration @.50 110 lobe seperation, Harland Sharp 1.6 Rockers,Edelbrock Water pump B&M Aluminum Flywhee,l 2500 Stall, 3.73 gears, edelbrock 1 5/8 Headers Nickle-Chrome,Custom exhaust gutted (open) Smog/air delete ,Hei Distributor, To Much to list | |
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10-06-2003, 02:48 PM
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#606 | | Senior Member
Join Date: Jul 2001 Location: Houston Area
Posts: 3,673
Car: Faster Engine: Than Transmission: You! | Yes, it is worth it ! It will give you a little more horsepower. But, you will also gain better throttle response, less maintainance, better wear (engine life), less internal engine noise ( remember you have a knock sensor that WILL pull out timing for any valve train noise), etc.....
It's well worth it ! Save your money to do it right.
Just my $.02
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1991 Z-28 (Black - Hardtop) 355ci TPI/SLP, Ported Vortec heads, Comp XR276HR-12, Hooker 2210 Longtubes / custom 3" Y-pipe with 3 1/2" mufflex cat-back, Borg Warner T-56, PROM tuned by me!, 3.73's, Hotchkis suspension, custom high-flow lid and ram-air, and ALL the bolt-ons. | |
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10-09-2003, 04:42 AM
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#607 | | Junior Member
Join Date: Oct 2003
Posts: 9
| Man this is the perfect thread, you guys have provided some killer information, but of course with good comes some bad. I don't know if you guys have fried my brain or if its just to late, so I need some info on what im doing to my 91z28. I will thank everyone ahead of time, being a college student im on a very limited budget and really can't afford to make expensive mistakes.
Heres what I got so far, but not installed:
350 2 bolt main (40 over)
Scat 9000 383 crank
Speed Pro hyper pistons (11 to 1)
5.7 Eagle Forged Rods
Dart Sportman Heads (2.02/1.60 200cc intake runners/ ported and polished/ manely valves)
1.5 crane engerizer roller rockers
isky custom ground cam .485/.510 lift 224/234 @.05
headman shorty headers 1 5/8 primary going to 3"collectors
#24lb injectors
The car has a 305 tpi and a 700r4 right now
Now heres my dilemma after reading all your guys posts. Would it be so much easier just do go with a carb and a vict jr intake vs trying to figure out all the tpi stuff. I had orginally wanted to stay with the tpi setup but it seems thats really going to sufficate the air flow, but the tpi is so much "cooler" LOL. I am just looking for a low 13 sec car that is alot of fun on the street (tired of being smoked by those damn ponies). Anyway any thoughts on if I should try to make the tipi system work or should I just go with the carb, would greatly be appreciated!
O irocman if you do go with the retrofit roller I have heard some really bad things about cranes setup. Can't remember actually what forum I was on, but it seems that the brackets between the lifters that keeps the lifters from spinning, break, and as you can imagine the roller ends up eating the cam, destroying your valves, heads, etc etc.......It wasn't just one person that this had happened either, it was more like 5 or 6.......Hopefully you can do some searching and find it......they provided some pretty gruesome photos........ | |
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10-09-2003, 04:48 AM
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#608 | | Junior Member
Join Date: Oct 2003
Posts: 9
| O one more thing I would like to ask......1bad91z what did you have to modify or buy to make those vette wheels work? | |
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10-09-2003, 12:45 PM
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#609 | | Senior Member
Join Date: Jul 2001 Location: Houston Area
Posts: 3,673
Car: Faster Engine: Than Transmission: You! | You need spacers to fit vette and or 4thgen wheels on a thirdgen.
The pic of my car with those wheels was a photoshopped pic.
www.skulte.com sells the adapter spacers that you would need.
You are also going to need at least 24 lb injectors and I wouldn't go with the stock TPI intake. Get a high-flow base and runners or buy a stealth-ram or converted LT-1 intake.
Your combo sounds pretty strong so far, dont choke it with the stock intake.
Good luck!
Mike (1bad91Z)
__________________
1991 Z-28 (Black - Hardtop) 355ci TPI/SLP, Ported Vortec heads, Comp XR276HR-12, Hooker 2210 Longtubes / custom 3" Y-pipe with 3 1/2" mufflex cat-back, Borg Warner T-56, PROM tuned by me!, 3.73's, Hotchkis suspension, custom high-flow lid and ram-air, and ALL the bolt-ons. | |
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10-09-2003, 03:07 PM
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#610 | | Member
Join Date: Apr 2003 Location: kansas city
Posts: 149
| No,,, dont go with crane, I wouldnt ever go with crane. Comp has always been my number 1 choice. Comps cams camshafts make more power with the exact same specs as cranes. So which one would you go with???
IROCZMAN380
__________________ 87 Iroc Camaro 383ci Vortec Heads, 64cc (1.94/1.60 valves) Edelbrock RPM Air Gap intake, 750 Demon vac secondary, Comp Cams 493/508 lift with 224/230 duration @.50 110 lobe seperation, Harland Sharp 1.6 Rockers,Edelbrock Water pump B&M Aluminum Flywhee,l 2500 Stall, 3.73 gears, edelbrock 1 5/8 Headers Nickle-Chrome,Custom exhaust gutted (open) Smog/air delete ,Hei Distributor, To Much to list | |
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10-09-2003, 03:36 PM
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#611 | | Senior Member
Join Date: Feb 2002 Location: Nashville TN
Posts: 1,115
Car: 1989 Trans Am Engine: 355 HSR Transmission: Pro-Built 700r4 w/ 3400 converter Axle/Gears: 10 bolt w/ 3.42 gears | well... little late but on the topic of cams from the previous page and such...
has anyone heard of the new comp lobes out... Combinations Motorsports has a Xtreme Energy 227/233 .560 .569 w/ 1.6s on either a 111, 112, or 114 LSA...
making good power in some of the LT1 cars right now.
just thought i would throw that out there. i am gonna run that cam in my 355 i am building w/ LT1 intake... i couldn't decide between the 224/230 or the 230/236... so heck i just split the diffence and got the CMotorsports cam...
oh yeah... their site is www.CMotorsports.com .
__________________ Chris Martin
Director Public Relations - Middle Tennessee F-Body Association - www.mtfba.org
- 1989 TA: built 355 c.i.d., HSR, TFS 23* heads, 227/233 .560"/.569" 112 LSA, ProBuilt 700r4, Edge 3400 2.5 STR Converter
TOTALLED: 2004 GTO A4
SOLD: 2000 SS M6: lid, Pacesetter LT's, TD's w/ Flowmaster 1 Chamber mufflers.
SOLD: 1986 C4 | |
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10-09-2003, 07:15 PM
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#612 | | Senior Member
Join Date: Jul 2001 Location: Houston Area
Posts: 3,673
Car: Faster Engine: Than Transmission: You! | The 230/236 would be better for a shorter runner setup like the LT-1 or Stealth-ram as long as your heads flow decent.
The 224/230 is about as big as you should go with a LTR TPI style intake and I would only use that with a LTR TPI if your heads flow well also.
The best thing to do is to have your heads flow benched. Then decide on what intake you will use. With that information, you can now make a better educated decision on what cam to use. Thats what I did.
__________________
1991 Z-28 (Black - Hardtop) 355ci TPI/SLP, Ported Vortec heads, Comp XR276HR-12, Hooker 2210 Longtubes / custom 3" Y-pipe with 3 1/2" mufflex cat-back, Borg Warner T-56, PROM tuned by me!, 3.73's, Hotchkis suspension, custom high-flow lid and ram-air, and ALL the bolt-ons. | |
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10-14-2003, 09:08 AM
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#613 | | Senior Member
Join Date: Feb 2002 Location: Nashville TN
Posts: 1,115
Car: 1989 Trans Am Engine: 355 HSR Transmission: Pro-Built 700r4 w/ 3400 converter Axle/Gears: 10 bolt w/ 3.42 gears | i know what the heads flow... i got a set of TFS 23* heads from a dealer for cheap. said he flowed them out of curiousity and they were every bit of what TFS advertised and more as a matter of fact. didn't have a flow sheet, but i am really good friends w/ this guy so i trust what he said. When he flowed them they peaked at like 260 @.550".
that being said i am probably going to run a LT1 intake a buddy of mine had on his car. that and the 227/233 and see how it goes. my buddy w/ a stock bottom end LT1, ported heads that flow around 270 @ .600 w/ DECENT low lift numbers ( my low lift is better than his) and a 224/230 cam is running 12.30s on hot days... so my combo should be similar to his.
UNTIL THE TRANNY GOES KAPUT!!! 
__________________ Chris Martin
Director Public Relations - Middle Tennessee F-Body Association - www.mtfba.org
- 1989 TA: built 355 c.i.d., HSR, TFS 23* heads, 227/233 .560"/.569" 112 LSA, ProBuilt 700r4, Edge 3400 2.5 STR Converter
TOTALLED: 2004 GTO A4
SOLD: 2000 SS M6: lid, Pacesetter LT's, TD's w/ Flowmaster 1 Chamber mufflers.
SOLD: 1986 C4 | |
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11-08-2003, 04:47 PM
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#614 | | Senior Member
Join Date: Feb 2003 Location: in front of mustangs
Posts: 482
Car: 91 z-28 conv. Engine: 350 vortec tpi crate Transmission: 700r4 | hello......hello.......is mike crews out there? | |
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11-09-2003, 11:52 AM
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#615 | | Senior Member
Join Date: Feb 2003 Location: Albuquerque, NM
Posts: 1,112
Car: 1966 El Camino Custom Engine: 350 Transmission: 200 4R Axle/Gears: 3:75 12 bolt with Brute Strength | Quote:
[i]
O irocman if you do go with the retrofit roller I have heard some really bad things about cranes setup. Can't remember actually what forum I was on, but it seems that the brackets between the lifters that keeps the lifters from spinning, break, and as you can imagine the roller ends up eating the cam, destroying your valves, heads, etc etc.......It wasn't just one person that this had happened either, it was more like 5 or 6.......Hopefully you can do some searching and find it......they provided some pretty gruesome photos........ [/b]
| Apparently, this isn't restricted to Crane. I had the same thing happen to my Comp Cams set-up. If you look at the pins holding the brackets, they are very small. I don't believe there is much strain on these pins but considering their importance, you'd think they would be a lot beefier. | |
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12-14-2003, 01:45 PM
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#616 | | Senior Member
Join Date: Aug 2001 Location: Pacific Northwest
Posts: 1,770
Car: '85 IROC Engine: LB9 Transmission: 700 R4 | That's awfully scary, hearing that the link bars are letting go on hyd roller lifters. I'm puzzled though, cause aren't those the same link bar designs that have been used on racing solid roller lifters for decades? It seems like if they were so failure prone, there would have been some huge **** storm a long time ago.
This, by the way, is the mother of all threads!
I can cancel my subscription to CHP, everything I need to know is right here.
How to build a budget stroker that runs 12.0 sec.
Last edited by Streetiron85 : 12-15-2003 at 10:30 AM.
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12-14-2003, 08:28 PM
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#617 | | Member
Join Date: Jan 2002 Location: Jesup, GA
Posts: 206
| Hey Guys,
I'm still here, I have just been really busy lately (work). As far as my car goes, I need to buy a new 9 bolt posi unit (from 9bolt.com, I guess) before I can do anymore with my car. My posi unit is shot (slips like crazy, and has already ben shimmed twice). There are only 1/8 mile tracks where I live now, so I'll have to get used to that. I've also been distracted, 'cause I just bought an '03 10th Anniversary SVT Cobra (Supercharged 4.6L) - what a bad ride (for a Ford)! With an exhuast, chip, cold air, and supercharger pulley, the car will be near 450 RWHP. So I have been spending time (and money) on the Cobra instead of the IROC.
Later- Mike...... | |
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12-15-2003, 01:14 AM
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#618 | | Senior Member
Join Date: Nov 2000 Location: Indpls IN US
Posts: 812
Car: 91 Z28 Engine: Forged 383 Transmission: Pro-built 700R4 | Have fun with the Darkside, Mike. I know all of us here deep down would love to play with that SC'd 4.6 and run the heck out of it, but you just won't hear us say out loud.  Have fun with the new toy, but don't forget about the old one.
Joe
__________________
2002 SOM ws6 M6, the 91 never was ressurected after the fire...
Old cars:
91 Z w/383 , all forged bottom end, miniram, TPIS ZZ-X cam, Ported AFR 210's, Pro-built trans, Vig 3200 stall, Hooker LT's, drag susp., 17x9 ROH Snypers, and quite a bit more. 375 rwhp 375 rwtq.
89 Iroc, SuperRam, 219 cam, AFR 190's, sold to the old man, now has 406, runs 11's. | |
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12-16-2003, 02:47 PM
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#619 | | Senior Member
Join Date: Apr 2002 Location: Ft Myers, Florida
Posts: 3,260
Car: 1989 GTA convertible Engine: 355 bowtie Transmission: MIA..... Axle/Gears: DTS/Moser 10-bolt | Quote: |
I know all of us here deep down would love to play with that SC'd 4.6 and run the heck out of it, but you just won't hear us say out loud. Have fun with the new toy, but don't forget about the old one.
| Very true there camarojoe. - Fast is fast. - I love my GM's, but it's all cool if it goes fast... As stated, don't forget about your old toys Mike.
You can't knock that little 4.6. My roomates '02 GT just made 317hp/314ftlbs at the wheels n/a. not bad for 281ci.
- I'm slowly starting to put mine back together after complete tear-down to find a knecklace charm on top of #4 piston... 
__________________ 1989 lead sled still awating its transformation Quote: originally posted by sofakingdom
I've heard all sorts of things about "stronger gears" and all that, from any number of sources. Thing is, I've got a shelf full of T-5s with wasted cases, that EAT any gears I can put in them. Because it's not the GEARS that are the root cause of failure, it's THE CASE. Until you strengthen the CASE, you could put in gears forged in the fiery furnaces of Hell by 10,000-year-old gnomes from an alloy of purest virgin nonobtanium with just enough irreplacium added to make them one-of-a-kind, and the case will STILL stretch and allow those gears to misalign and they'll tear up. Frankly I wouldn't spend another dime on trying to make a T-5 survive behind some power. Oh wait.... I don't have to, I finally woke up and got a clue and swapped in something else; specifically, a T-56
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- If you can't afford to do it right the first time, can you afford to do it again? | |
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12-16-2003, 07:47 PM
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#620 | | Senior Member
Join Date: Jul 2001 Location: Houston Area
Posts: 3,673
Car: Faster Engine: Than Transmission: You! | QUOTE]- I'm slowly starting to put mine back together after complete tear-down to find a knecklace charm on top of #4 piston...[/quote]
Shagwell - you need to stop making your mom work on / fix your car!
j/k
New rule........ no women near the engine bay! | |
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12-23-2003, 04:18 PM
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#621 | | Senior Member
Join Date: Apr 2002 Location: Ft Myers, Florida
Posts: 3,260
Car: 1989 GTA convertible Engine: 355 bowtie Transmission: MIA..... Axle/Gears: DTS/Moser 10-bolt | Quote: |
New rule........ no women near the engine bay!
| AGREED!!! If I had any idea as to who's it was...well, they'd be lucky if they got to eat christmas dinner through a tube...
If it wasn't for bad luck...
Well, I'm going to put a manual trans in it while it's apart. I just need to come up w/ a decent 5 or 6-speed.
oh yeah, here's the specs on my new hyd roller. -
242/246 @ .050, 567/585 on a 112 centerline.
hehehe...this things gonna be nasty...
later, justin...
__________________ 1989 lead sled still awating its transformation Quote: originally posted by sofakingdom
I've heard all sorts of things about "stronger gears" and all that, from any number of sources. Thing is, I've got a shelf full of T-5s with wasted cases, that EAT any gears I can put in them. Because it's not the GEARS that are the root cause of failure, it's THE CASE. Until you strengthen the CASE, you could put in gears forged in the fiery furnaces of Hell by 10,000-year-old gnomes from an alloy of purest virgin nonobtanium with just enough irreplacium added to make them one-of-a-kind, and the case will STILL stretch and allow those gears to misalign and they'll tear up. Frankly I wouldn't spend another dime on trying to make a T-5 survive behind some power. Oh wait.... I don't have to, I finally woke up and got a clue and swapped in something else; specifically, a T-56
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- If you can't afford to do it right the first time, can you afford to do it again? | |
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01-27-2004, 10:28 PM
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#622 | | TGO Supporter
Join Date: Nov 2002 Location: White Hall, Ar
Posts: 660
Car: '88 Iroc Engine: 305 Transmission: T5 Axle/Gears: 3.45 | Mike Crews:
Any new news on your car?  | |
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03-12-2004, 04:22 PM
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#623 | | Senior Member
Join Date: Jul 2001 Location: Houston Area
Posts: 3,673
Car: Faster Engine: Than Transmission: You! | Mike Crews - where ya been??? Do you still have the IROC ?? | |
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03-14-2004, 01:36 PM
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#624 | | Senior Member
Join Date: Jul 1999 Location: Atco, NJ, USA
Posts: 726
Car: 1986 Z28 Engine: 355 Transmission: th400 | lil update for my beasty.
got 11.96 @ 113.5 running on a busted trans... split the case on the 700R.
finally getting some big kid parts... TH 400 t-brake, moser 12bolt with suitable gearing...looking at 4.30's. and retiring the vac sec carb for a 750 dp.
__________________
GN predator | |
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03-14-2004, 02:01 PM
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#625 | | Senior Member
Join Date: Aug 2002 Location: Mesa, AZ: Transplanted from Chicago, IL
Posts: 1,824
| Nice PK, way to get it done!
FYI, if you are in need of a new carb, I have 2 Speed Demons for sale, a 750 and an 850. Both are truely in like new condition.
PM me if you wanna chat.
Last edited by OMINOUS_87 : 03-21-2004 at 10:30 PM.
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03-15-2004, 11:40 AM
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#626 | | Senior Member
Join Date: Jul 2001 Location: Houston Area
Posts: 3,673
Car: Faster Engine: Than Transmission: You! | Good job Ponykiller!
113 is good for 11.60's with perfect traction! You must have been spinning out of the hole. | |
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03-15-2004, 12:33 PM
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#627 | | TGO Supporter
Join Date: Jul 2001 Location: Cheyenne, Wyoming
Posts: 4,731
Car: 1992 B4C 1LE Engine: HSR on a ZZ4 clone Transmission: built 700R4 Axle/Gears: stock w/later torsen posi ······································· Car: 91 Z28 street legal drag Engine: 352 dstrk 400 w/P1sc Transmission: TH350 w/brake Axle/Gears: Currie 9+ w/4.11 limited slip | YOU CAN DO IT!!! 12.00 @ 113 movie | |
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