Who's using Holley's SysteMAX?

lyonsd · 03-02-2001, 07:58 AM

If so, I'd like to hear your impressions of the kit.
What other mods are you running along with it?

Streetability?

Perforamnce?

Give me the entire low-down.

I'm thinking about this or AFR heads and a new cam to go with my existing '93 Cobra intake.

So it's Holley SysteMAX vs. AFR/Cobra/cam

If I stick with the Cobra intake and get AFR heads, which heads - 185 or 165? Which cam? Here are my current mods.

Rick 91GT · 03-02-2001, 08:50 AM

Well you should go and do a search and look at all the stuff that has already been discussed about the kit there is some good info and opinions there, I have a lot of topics on this kit in Windsor Power.

I love my kit and think it was worth every penny, it makes great power from 3500 up. I shift at 6200 and it is still pulling. Now the cam I feel like others can be much, much better. I was running the Non-Emission cams but I have my motor apart right now to swap the cam to a Anderson N-61 which will really wake the motor up. I did get the newer style heads PT#300-575 last spring by accident they are being release this spring per Holley. These heads do not have the .40" rasied exhaust ports and they are assembled by AFR for Holley. I have the 2.02" x 1.60" stud mount, and they fit with stock pistons and the .509 lift Holley cam. I had .139" PTV clearance. I was having oil consumption problems so I tore the motor down to find broken valve seals and bad valve guides after 3000 miles, the heads are being replaced no questions asked by Holley. I hope to be deep in the 11's with my new combo in the spring after I get it back together, hopefully by the first half of April. I am running the 24# injectors instead of the 30# because I have heard that to run the 30# you have to have the pressure to low and they don't have a good spray pattern so I went with the 24's. I wish I would have went with the 70mm TB though.

As far as streetability, it is fine doesn't over heat ( I have a 195 thermo, Ron Davis radiator, Stewart H2O pump) and the car never runs over 180 degrees. The idle is mean and I can't get it to idle below 1100 or it loads up due to all the overlap the cam has.

I think if you go with the kit you can not beat the Holley intake, you will never out grow it. I know the heads I have flow damn good numbers for box stock and are close to the AFR's but I have 62.1cc chambers, the AFR's have 58cc which will give you a little more compression. I think either head would be a good choice. Most of my mods are in my sig, if you need any more info either post it here or e-mail me at Rick91GT@onemain.com.

Good Luck!

------------------
My Ride Check Out My Site 91GT, Holley SysteMAX II Kit-Heads 2.02" x 1.60",Full MAC exhaust 1-5/8" Long tubes, 2-1/2" O.R H-Pipe, 2 1/2" cat back, 12" K&N Filter, RNH PERFORMANCE Ram Air, Ron Davis Radiator, Full Suspension,3:73's, Welds, Best on new motor-12.60 @ 108, no traction 1.98

Green92LX · 03-02-2001, 10:16 AM

Just for an idea, my buddy is running the systemax stage 2 kit on a refreshed 302 and an S-trim with 15 LBS of boost and he's putting 490 to the ground with an extremely safe tune...

------------------
1992 5.0 LX, V-1 S-Trim @8LBS, Edelbrock 6037 Heads, Cobra Intake,E-303, 1.6 Roller Rockers,65MM Holley TB, 75 MM Pro M Mass Air, 190 LPH FP w/ 24 lb injectors,MSD 6A and BTM, BBK equal length shorties, offroad h-pipe,Mac Flowpath Mufflers, Pro 5.0, 3.73's,Motorsport "C" springs,welded subframe connectors, Ponies w/ 225/50 Nittos, Dark Green w/ 93 Cobra Spoiler

Daily driver: 89 Coupe with 207K plus, BBK shorties,offroad h-pipe,2-chamber flowmasters with dumps

lyonsd · 03-02-2001, 01:31 PM

What are the specs on the Anderson N-61 cam?

Rick 91GT · 03-02-2001, 03:33 PM

.544/.568
110 lobe center
228/236 duration

A lot is in the low lift numbers and the ramp up of the cam, these are numbers that he doesn't give out. I was talking to Rick Anderson and he though this cam would really wake up the motor and take full advantage of my heads and the Holley intake. It is made for 4:30 gears which I am swapping in. He said it would work with 4:10 but it would be a little choppy at low rpm below 2200rpm, with 3:73s it would be really choppy/bucking and almost unbearable on the street at the low rpms...

------------------
My Ride Check Out My Site 91GT, Holley SysteMAX II Kit-Heads 2.02" x 1.60",Full MAC exhaust 1-5/8" Long tubes, 2-1/2" O.R H-Pipe, 2 1/2" cat back, 12" K&N Filter, RNH PERFORMANCE Ram Air, Ron Davis Radiator, Full Suspension,3:73's, Welds, Best on new motor-12.60 @ 108, no traction 1.98

03-02-2001, 07:58 AM	#1
lyonsd Registered Member Join Date: Dec 1999 Location: Flowery Branch, GA Posts: 236	Who's using Holley's SysteMAX? If so, I'd like to hear your impressions of the kit. What other mods are you running along with it? Streetability? Perforamnce? Give me the entire low-down. I'm thinking about this or AFR heads and a new cam to go with my existing '93 Cobra intake. So it's Holley SysteMAX vs. AFR/Cobra/cam If I stick with the Cobra intake and get AFR heads, which heads - 185 or 165? Which cam? Here are my current mods.

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03-02-2001, 08:50 AM	#2
Rick 91GT Procharged! Join Date: May 1999 Location: Hanover, PA Posts: 1,539	Well you should go and do a search and look at all the stuff that has already been discussed about the kit there is some good info and opinions there, I have a lot of topics on this kit in Windsor Power. I love my kit and think it was worth every penny, it makes great power from 3500 up. I shift at 6200 and it is still pulling. Now the cam I feel like others can be much, much better. I was running the Non-Emission cams but I have my motor apart right now to swap the cam to a Anderson N-61 which will really wake the motor up. I did get the newer style heads PT#300-575 last spring by accident they are being release this spring per Holley. These heads do not have the .40" rasied exhaust ports and they are assembled by AFR for Holley. I have the 2.02" x 1.60" stud mount, and they fit with stock pistons and the .509 lift Holley cam. I had .139" PTV clearance. I was having oil consumption problems so I tore the motor down to find broken valve seals and bad valve guides after 3000 miles, the heads are being replaced no questions asked by Holley. I hope to be deep in the 11's with my new combo in the spring after I get it back together, hopefully by the first half of April. I am running the 24# injectors instead of the 30# because I have heard that to run the 30# you have to have the pressure to low and they don't have a good spray pattern so I went with the 24's. I wish I would have went with the 70mm TB though. As far as streetability, it is fine doesn't over heat ( I have a 195 thermo, Ron Davis radiator, Stewart H2O pump) and the car never runs over 180 degrees. The idle is mean and I can't get it to idle below 1100 or it loads up due to all the overlap the cam has. I think if you go with the kit you can not beat the Holley intake, you will never out grow it. I know the heads I have flow damn good numbers for box stock and are close to the AFR's but I have 62.1cc chambers, the AFR's have 58cc which will give you a little more compression. I think either head would be a good choice. Most of my mods are in my sig, if you need any more info either post it here or e-mail me at Rick91GT@onemain.com. Good Luck! ------------------ My Ride Check Out My Site 91GT, Holley SysteMAX II Kit-Heads 2.02" x 1.60",Full MAC exhaust 1-5/8" Long tubes, 2-1/2" O.R H-Pipe, 2 1/2" cat back, 12" K&N Filter, RNH PERFORMANCE Ram Air, Ron Davis Radiator, Full Suspension,3:73's, Welds, Best on new motor-12.60 @ 108, no traction 1.98

03-02-2001, 10:16 AM	#3
Green92LX Registered Member Join Date: Jun 1999 Location: North Haven,CT Posts: 336	Just for an idea, my buddy is running the systemax stage 2 kit on a refreshed 302 and an S-trim with 15 LBS of boost and he's putting 490 to the ground with an extremely safe tune... ------------------ 1992 5.0 LX, V-1 S-Trim @8LBS, Edelbrock 6037 Heads, Cobra Intake,E-303, 1.6 Roller Rockers,65MM Holley TB, 75 MM Pro M Mass Air, 190 LPH FP w/ 24 lb injectors,MSD 6A and BTM, BBK equal length shorties, offroad h-pipe,Mac Flowpath Mufflers, Pro 5.0, 3.73's,Motorsport "C" springs,welded subframe connectors, Ponies w/ 225/50 Nittos, Dark Green w/ 93 Cobra Spoiler Daily driver: 89 Coupe with 207K plus, BBK shorties,offroad h-pipe,2-chamber flowmasters with dumps

03-02-2001, 01:31 PM	#4
lyonsd Registered Member Join Date: Dec 1999 Location: Flowery Branch, GA Posts: 236	What are the specs on the Anderson N-61 cam?

03-02-2001, 03:33 PM	#5
Rick 91GT Procharged! Join Date: May 1999 Location: Hanover, PA Posts: 1,539	.544/.568 110 lobe center 228/236 duration A lot is in the low lift numbers and the ramp up of the cam, these are numbers that he doesn't give out. I was talking to Rick Anderson and he though this cam would really wake up the motor and take full advantage of my heads and the Holley intake. It is made for 4:30 gears which I am swapping in. He said it would work with 4:10 but it would be a little choppy at low rpm below 2200rpm, with 3:73s it would be really choppy/bucking and almost unbearable on the street at the low rpms... ------------------ My Ride Check Out My Site 91GT, Holley SysteMAX II Kit-Heads 2.02" x 1.60",Full MAC exhaust 1-5/8" Long tubes, 2-1/2" O.R H-Pipe, 2 1/2" cat back, 12" K&N Filter, RNH PERFORMANCE Ram Air, Ron Davis Radiator, Full Suspension,3:73's, Welds, Best on new motor-12.60 @ 108, no traction 1.98