awesome numbers for low timing and stock compression! what pulley combo did you run?
The Official Centrifugal Pulley/Boost Combo Thread!!!
- Thread starter 98 Saleen Cobra
- Start date
awesome numbers for low timing and stock compression! what pulley combo did you run?
88 Fox Body Coupe 4v swap with 96-98 Timing cover
1. 4V with B heads
2. F2M
3. Big Bore 306ci 10.6:1
4. Stage 3 Ported B heads from Livernois
5. Custom grind. 245/245 @.050 .495 lift
6. Custom sheetmetal intake
7. Spearco custom front mounted air to water intercooler
8. Kooks 1 7/8" to 3.5" LT's, 3" custom X pipe to bullets and dumps.
9. 72t crank, 46t headunit.
10. 28-30psi @ 8200rpm (over spinning the blower about 1K rpm or so.)
11. No power pipe
12. 922/855 through a Rossler powerglide. 1091/888 through a T56
13. E98 and Q16 are the only fuels used right now.
1. 4V with B heads
2. F2M
3. Big Bore 306ci 10.6:1
4. Stage 3 Ported B heads from Livernois
5. Custom grind. 245/245 @.050 .495 lift
6. Custom sheetmetal intake
7. Spearco custom front mounted air to water intercooler
8. Kooks 1 7/8" to 3.5" LT's, 3" custom X pipe to bullets and dumps.
9. 72t crank, 46t headunit.
10. 28-30psi @ 8200rpm (over spinning the blower about 1K rpm or so.)
11. No power pipe
12. 922/855 through a Rossler powerglide. 1091/888 through a T56
13. E98 and Q16 are the only fuels used right now.
Mother of gawd, I think my pants just got tight in the front area.
- Joined
- Feb 28, 2007
- Messages
- 19,523
ttt I know there are more setups out there.
hopefully i can post my setup in a few weeks.
2003 GT
1. 2V ported stockers
2. d1sc
3. Low comp 8.9
4. ported 2vs
5. comp 274s
6. stocker
7. Intercooled(A/A)
8. bbk longtubes,bbk H,borla stingers
9. 4.0 blower pulley. 6.5"crank 110" gates belt
10. 8.8lbs @6200
11. powerpipe? No
12. 413/368
New setup
2003 GT
1. 2V ported stockers
2. d1sc
3. Low comp 8.9
4. ported 2vs
5. comp 274s
6. stocker
7. Intercooled(A/A)
8. bbk longtubes,bbk H,borla stingers
9. 2.9 blower pulley. 6.5"crank 107.3" gates belt
10. 22ish
11. powerpipe? yes
12. 56x/5xx's waiting on dyno time
1. 2V ported stockers
2. d1sc
3. Low comp 8.9
4. ported 2vs
5. comp 274s
6. stocker
7. Intercooled(A/A)
8. bbk longtubes,bbk H,borla stingers
9. 4.0 blower pulley. 6.5"crank 110" gates belt
10. 8.8lbs @6200
11. powerpipe? No
12. 413/368
New setup
2003 GT
1. 2V ported stockers
2. d1sc
3. Low comp 8.9
4. ported 2vs
5. comp 274s
6. stocker
7. Intercooled(A/A)
8. bbk longtubes,bbk H,borla stingers
9. 2.9 blower pulley. 6.5"crank 107.3" gates belt
10. 22ish
11. powerpipe? yes
12. 56x/5xx's waiting on dyno time
- Joined
- Feb 28, 2007
- Messages
- 19,523
ttt, I know there are more common guys :beer: great numbers and combo's everyone!
1. 2V Trickflow 185 track heat heads
2. Vortech SI trim
3. Stock stroke, .020 overbore, 8.7-8.8 compression
4. Non ported heads
5. Trickflow track max cam @.050 234* intake and 234* exhaust 114 LSA
6. Stock PI manifold
7. Paxton intercooler
8. MAC Longtubes, Lethal performance catted x-pipe, Magnaflow 2.5" cat back
9. 3.1" Reichard Racing Ultra grip, 10% Innovators west crank pulley. 113" belt. I run a 96-98 2 valve timing cover with 3 bolt tensioner.
10. 16psi at 7k rpms
11. 4" Modular Powerhouse powerpipe
12.
2. Vortech SI trim
3. Stock stroke, .020 overbore, 8.7-8.8 compression
4. Non ported heads
5. Trickflow track max cam @.050 234* intake and 234* exhaust 114 LSA
6. Stock PI manifold
7. Paxton intercooler
8. MAC Longtubes, Lethal performance catted x-pipe, Magnaflow 2.5" cat back
9. 3.1" Reichard Racing Ultra grip, 10% Innovators west crank pulley. 113" belt. I run a 96-98 2 valve timing cover with 3 bolt tensioner.
10. 16psi at 7k rpms
11. 4" Modular Powerhouse powerpipe
12.
- Joined
- Feb 28, 2007
- Messages
- 19,523
ttt
im so close to being able to put my setup in here lol.
99 mustang Cobra
Newest setup 29,000 miles to 94,000 miles on vehicle (and still going)
1. 03/04 4V Cobra/Mach/Marauder/Aviator heads
2. Procharger P1SC
3. 04 Lincoln Aviator Longblock - 10.3:1 compression
4. 255 Walbro, 42lb green injectors, 90MM LMAF (blow thru)
5. 03/04 Cobra/Mach/Marauder/Aviator cams
6. 99 Cobra intake (green dot, post-recall) with BBK twin 65mm TB (not port matched)
7. Procharger 3 core intercooler / procharger standard butterfly recirc valve, vented to atmosphere
8. 03 Cobra stock manifolds (to fit the D shaped exhaust ports in the 03/04 heads), BBK 2.5" O/R X Pipe, Mac 2.5" Cat Back
9. Stock crank pulley, 3.7" pulley, 6 rib 114.5" belt
10. 5 PSI @ 3K, 10PSI @ 6K, 11ish PSI @ 6500 redline (belt slip, tensioner flex are issues)
11. Morpheus Performance 4" power pipe, K&N filter behind fog light opening
12. 489 RWHP / 442 TQ on the "let's see what it can do" tune. 450/418 on the "let's not destroy the stock internals" tune... Basically pulled timing and added fuel after 4500 RPM. With either tune, it made almost the same power and torque up to 4500 (within about 10hp/10tq), but it flattens out with the more conservative tune.
Old setup - 15,000 miles to 29,000 miles on vehicle
1. Stock 99 cobra heads
2. Procharger P1SC
3. Stock 99 cobra longblock, 9.85:1 compression
4. 255 Walbro, 42lb green injectors, 90MM LMAF (blow thru)
5. Stock 99 cobra cams
6. 99 Cobra intake (green dot, post-recall) with stock twin 57mm TB
7. Procharger 3 core intercooler / procharger standard butterfly recirc valve, vented to atmosphere
8. 99 cobra stock manifolds, BBK 2.5" O/R X Pipe, Mac 2.5" Cat Back
9. Stock crank pulley, 3.9" pulley, 6 rib 114.5" belt
10. 12-13 PSI @ 6900 RPM
11. Morpheus Performance 4" power pipe, K&N filter behind fog light opening
12. 510 RWHP / 431 TQ
A few things to point out: with the 03/04 cobra heads and cams as opposed to the 99/01 heads/cams, the new engine makes peak torque 1500 rpm lower in the powerband. Although both setups made within 20 PEAK power with about the same amount of boost and pulley size, the high compression Aviator longblock with the later 03/04 heads made as much as 125 more HP than the earlier setup at 3250RPM. The new setup makes much more power and torque with better throttle response, especially below 4K. But the earlier setup with the 99 heads/cams had less off boost/low boost power but had a wilder top end and a higher redline (6900 vs 6500). At 6500, both motors made roughly the same power, it was only above 6500 where the old 99 motor made the extra 20 HP.
Old 99 setup has a 3.9" pulley, made as much as 13psi, new 04 aviator setup has a 3.7" pulley with 11psi max boost. The main reason the new 04 motor made less peak boost (even with a smaller pulley) is because of the better flowing heads and cams... More airflow. But the new 04 motor has a lower redline, so there was 400 less rpm to spin the blower than the 99 motor. I also think I'm getting a little belt slip with the slightly smaller pulley, plus I havent changed my tensioner in a while.
Long story short, the new high compression, 03/04 cobra-headed aviator longblock is much more fun to drive on the street, with much more power lower in the powerband. I don't have to spin it up to higher rpm's to get in the powerband to have a little fun. As a result of having to work this engine less, it's lasted much longer. Plus, the 450 HP street tune might have something to do with it. Even though it's now restricted to 450 peak HP, it still makes all the same power and torque down low, which is where it stays most of the time anyway.
Newest setup 29,000 miles to 94,000 miles on vehicle (and still going)
1. 03/04 4V Cobra/Mach/Marauder/Aviator heads
2. Procharger P1SC
3. 04 Lincoln Aviator Longblock - 10.3:1 compression
4. 255 Walbro, 42lb green injectors, 90MM LMAF (blow thru)
5. 03/04 Cobra/Mach/Marauder/Aviator cams
6. 99 Cobra intake (green dot, post-recall) with BBK twin 65mm TB (not port matched)
7. Procharger 3 core intercooler / procharger standard butterfly recirc valve, vented to atmosphere
8. 03 Cobra stock manifolds (to fit the D shaped exhaust ports in the 03/04 heads), BBK 2.5" O/R X Pipe, Mac 2.5" Cat Back
9. Stock crank pulley, 3.7" pulley, 6 rib 114.5" belt
10. 5 PSI @ 3K, 10PSI @ 6K, 11ish PSI @ 6500 redline (belt slip, tensioner flex are issues)
11. Morpheus Performance 4" power pipe, K&N filter behind fog light opening
12. 489 RWHP / 442 TQ on the "let's see what it can do" tune. 450/418 on the "let's not destroy the stock internals" tune... Basically pulled timing and added fuel after 4500 RPM. With either tune, it made almost the same power and torque up to 4500 (within about 10hp/10tq), but it flattens out with the more conservative tune.
Old setup - 15,000 miles to 29,000 miles on vehicle
1. Stock 99 cobra heads
2. Procharger P1SC
3. Stock 99 cobra longblock, 9.85:1 compression
4. 255 Walbro, 42lb green injectors, 90MM LMAF (blow thru)
5. Stock 99 cobra cams
6. 99 Cobra intake (green dot, post-recall) with stock twin 57mm TB
7. Procharger 3 core intercooler / procharger standard butterfly recirc valve, vented to atmosphere
8. 99 cobra stock manifolds, BBK 2.5" O/R X Pipe, Mac 2.5" Cat Back
9. Stock crank pulley, 3.9" pulley, 6 rib 114.5" belt
10. 12-13 PSI @ 6900 RPM
11. Morpheus Performance 4" power pipe, K&N filter behind fog light opening
12. 510 RWHP / 431 TQ
A few things to point out: with the 03/04 cobra heads and cams as opposed to the 99/01 heads/cams, the new engine makes peak torque 1500 rpm lower in the powerband. Although both setups made within 20 PEAK power with about the same amount of boost and pulley size, the high compression Aviator longblock with the later 03/04 heads made as much as 125 more HP than the earlier setup at 3250RPM. The new setup makes much more power and torque with better throttle response, especially below 4K. But the earlier setup with the 99 heads/cams had less off boost/low boost power but had a wilder top end and a higher redline (6900 vs 6500). At 6500, both motors made roughly the same power, it was only above 6500 where the old 99 motor made the extra 20 HP.
Old 99 setup has a 3.9" pulley, made as much as 13psi, new 04 aviator setup has a 3.7" pulley with 11psi max boost. The main reason the new 04 motor made less peak boost (even with a smaller pulley) is because of the better flowing heads and cams... More airflow. But the new 04 motor has a lower redline, so there was 400 less rpm to spin the blower than the 99 motor. I also think I'm getting a little belt slip with the slightly smaller pulley, plus I havent changed my tensioner in a while.
Long story short, the new high compression, 03/04 cobra-headed aviator longblock is much more fun to drive on the street, with much more power lower in the powerband. I don't have to spin it up to higher rpm's to get in the powerband to have a little fun. As a result of having to work this engine less, it's lasted much longer. Plus, the 450 HP street tune might have something to do with it. Even though it's now restricted to 450 peak HP, it still makes all the same power and torque down low, which is where it stays most of the time anyway.
Year of Car and what year timing cover you have. 2004 cobra- stock timing cover
1. 2V or 4V ( List what type of Heads, B-heads, C-heads, TFS, Stoke etc)4V C heads
2. Type of Blower F1A
3. Big Bore/Stroker/ Compression .020 teksid block, 9.3:1 compression
4. Ported Heads? AES ported
5. What Cams?Custom ground from comp cams
6. What intake? (aftermarket, Ported, Ported Short Runner, etc)01 cobra intake with billet 1" spacer
7. Intercooled(A/A) or Aftercooled or NO Cooler? A/A intercooler
8. Exhaust Combo? Kooks 1 3/4 headers w/3" collector 3" O/R X, 3" cb with stainless works mufflers
9. Pulley Combo (blower pulley size, crank pulley size) and belt length if you have it or remember 3.75" blower pulley, IW %10 overdrive crank pulley(7.25" dia.), belt was 110" IIRC
10. Amount of Boost you are seeing at X RPM. 18psi at 6500
11. Powerpipe? 3.75" aluminum tube with filter in fender
12. HP/TQ 711/611
O, and this is all running on a custom 8 rib setup.
1. 2V or 4V ( List what type of Heads, B-heads, C-heads, TFS, Stoke etc)4V C heads
2. Type of Blower F1A
3. Big Bore/Stroker/ Compression .020 teksid block, 9.3:1 compression
4. Ported Heads? AES ported
5. What Cams?Custom ground from comp cams
6. What intake? (aftermarket, Ported, Ported Short Runner, etc)01 cobra intake with billet 1" spacer
7. Intercooled(A/A) or Aftercooled or NO Cooler? A/A intercooler
8. Exhaust Combo? Kooks 1 3/4 headers w/3" collector 3" O/R X, 3" cb with stainless works mufflers
9. Pulley Combo (blower pulley size, crank pulley size) and belt length if you have it or remember 3.75" blower pulley, IW %10 overdrive crank pulley(7.25" dia.), belt was 110" IIRC
10. Amount of Boost you are seeing at X RPM. 18psi at 6500
11. Powerpipe? 3.75" aluminum tube with filter in fender
12. HP/TQ 711/611
O, and this is all running on a custom 8 rib setup.
Last edited:
- Joined
- Feb 28, 2007
- Messages
- 19,523
^^ Damn now that is some killer power!!!
thanks! its funny you say that, me and the guy who made my aluminum piping(Hans at Deans Performance) were talking about how with all the setups ive done on this motor, 5 to be exact lol, that it always seems to make really good power, even with conservative tuning. My timing on that run was like 17 deg. IIRC.
Last edited:
- Joined
- Feb 28, 2007
- Messages
- 19,523
Wow man that's so awesome! Post of up some pics if you can. :beer:
ya, i need to get on getting some pictures taken. I havent made it all pretty yet, its all just matte finish.
- Joined
- Feb 28, 2007
- Messages
- 19,523
That's cool man I just want to see how you routed the piping and stuff. 
Year of Car and what year timing cover you have. 2004 Mach1-99 cobra timing cover
1. 2V or 4V ( List what type of Heads, B-heads, C-heads, TFS, Stoke etc)4V heads
2. Type of Blower F1A
3. Big Bore/Stroker/ Compression -3.80 stroker, 9.5:1 compression
4. Ported Heads? CNC livernois ported
5. What Cams?Custom ground from Bullet racing cams
6. What intake? (aftermarket, Ported, Ported Short Runner, etc)04 mach1 5" short runner 1" spacer
7. Intercooled(A/A) or Aftercooled or NO Cooler? A/A intercooler
8. Exhaust Combo? Kooks 1 3/4 headers w/3" collector 3" O/R X, 3" bullets with dumps
9. Pulley Combo (blower pulley size, crank pulley size) 45 tooth Cog ATI super pulley/80 tooth lower
10. Amount of Boost you are seeing at X RPM. ???
11. Powerpipe? none
12. HP/TQ -still waiting for numbers from CRT. hopefully soon
1. 2V or 4V ( List what type of Heads, B-heads, C-heads, TFS, Stoke etc)4V heads
2. Type of Blower F1A
3. Big Bore/Stroker/ Compression -3.80 stroker, 9.5:1 compression
4. Ported Heads? CNC livernois ported
5. What Cams?Custom ground from Bullet racing cams
6. What intake? (aftermarket, Ported, Ported Short Runner, etc)04 mach1 5" short runner 1" spacer
7. Intercooled(A/A) or Aftercooled or NO Cooler? A/A intercooler
8. Exhaust Combo? Kooks 1 3/4 headers w/3" collector 3" O/R X, 3" bullets with dumps
9. Pulley Combo (blower pulley size, crank pulley size) 45 tooth Cog ATI super pulley/80 tooth lower
10. Amount of Boost you are seeing at X RPM. ???
11. Powerpipe? none
12. HP/TQ -still waiting for numbers from CRT. hopefully soon
1. 4V B heads, stock 98 cobra timing cover/motor
2. D1sc
3. Stock
4. No
5. Stock 98 cobra cams
6. Stock 98 intake, imrc deletes
7. Procharger 2 core (I think)
8. bbk longtubes, x pipe, stinger mufflers
9. 3.9 blower pulley, stock crank pulley
10. 9-10 depending on weather @ 6500
11. Black intake tube that comes with procharger kits
12. 456/400 on 101
2. D1sc
3. Stock
4. No
5. Stock 98 cobra cams
6. Stock 98 intake, imrc deletes
7. Procharger 2 core (I think)
8. bbk longtubes, x pipe, stinger mufflers
9. 3.9 blower pulley, stock crank pulley
10. 9-10 depending on weather @ 6500
11. Black intake tube that comes with procharger kits
12. 456/400 on 101
Users who are viewing this thread
