H/C/I combo

Piston · Sep 14, 2004

Well here are my numbers w/dyno sheet for a stock bottom end 302. I made 324.5 and I think I could have gotten to 340 or so with Stage III porting on the heads and some compression along with a better cold air intake.

Jo_885o · Sep 14, 2004

nmcgrawj said:
I was going to do the swap but i decided to do a h/c/i on my 302 and spend a lil more money on the weekend.....its college anyway.

So u decided to change ur mind and do HCI. Thats probably why i havent seen u in while.

Legendary · Sep 14, 2004

Piston said:
Well here are my numbers w/dyno sheet for a stock bottom end 302. I made 324.5 and I think I could have gotten to 340 or so with Stage III porting on the heads and some compression along with a better cold air intake.

What combo you had on the 302 at the time? What combo you going with the 331?

Piston · Sep 14, 2004

Legendary said:
What combo you had on the 302 at the time? What combo you going with the 331?

302 Combo:

3.73 Gears, TFS Stage II heads, Edelbrock Performer Ported Stage II, 255in tank fuel pump, 24lb injectors, AFM B2 Cam, 1.6Rockers, 70MM TB, 75MM MAF, MAC COLD AIR, HOOKER Long Tubes, Off Road H-Pipe, MSD 6AL & COIL, PMS (AFM computer).

Things I could have changed to make closer to 340-350RWHP. N/A cam not the nitrous cam I had. Bigger TB and MAF, More Head Porting and compression. Intake would be and RPM. Now some of this would have ruined my TQ but it would achieve those numbers.

331 Combo:
ONLY SOME CHANGES:
42 lb injectors(overkill for the later blower), 80MM MAF, 75MM TB, Anderson Power Pipe.
AFM N-91: Hi REV
CAM Must use AFM valve springs. Works great on 6900 rpm 10.5 to 11.5 comp. 302-331 c.i.d. with 4.56 gears and 30lb injectors. Must use AFM valve springs.
Edlebrock RPMII intake (ported lower to match heads).
Aluminum Flywheel, Aluminum Balancer, 7qt Oil Pan.
Upgraded Springs on Heads and put in titanium valve retainers for the extra RPMS.
All internals are forged DSS prepped new block and put in a nice rotating assembly I brought to them (which was theirs). Also got a main support and windage tray.

The car spins to 7k. Runs healthy and is truly god damn fast. Not much on the bottom end and doesn't ride good at all below 2k. It starts to make serious power at 4k. Below 4k it's still fast but not like when it see's 4k it becomes a monster. Hence they want the 4.56 gears with it but I got a 3.73 right now. Still in need of a dyno tune but let me tell you she scoots.

Here are some pics of it.

Pic1
Pic2

NoSloCoupes · Sep 14, 2004

Your 331 is set up really similar to the way my n/a 302 was. Even switched to the rpm II. With different exhaust setup and tailpipes i lost a few ponies, but the II helped bring them back. If i remember, it put down 363rwhp in mm&ff for the rpmII intake test.

Piston · Sep 14, 2004

NoSlo90 said:
Your 331 is set up really similar to the way my n/a 302 was. Even switched to the rpm II. With different exhaust setup and tailpipes i lost a few ponies, but the II helped bring them back. If i remember, it put down 363rwhp in mm&ff for the rpmII intake test.

That is bad ass... I need bigger exhaust right now to get me some more HP. The 1 5/8 headers need to go for some 1 3/4 headers. I hope I hit the 410-420RWHP range. I will see soon enough. What issue is that in?

D0cks · Dec 2, 2004

ok im still stuck one guy says 30 Rwhp one guy says he got to 350 with hci. Is there a proven H/C/I setup for a n/a 5L that puts out the most hp for being n/a?

D0cks · Dec 2, 2004

neone?

runningmole · Dec 3, 2004

D0cks said:
neone?

A friend had the TrickFlow stuff on his car, TWs, Stage 1 cam, Track Heat....and made 302rwhp. It doesn't take much power to get a foxbody to run quick in the quarter (assuming that is something you'll do w/ it) 330rwhp to 350rwhp is only 20hp, so it's not going to be a night and day difference. I would say get your fav heads and intake, and then have a custom cam specced for your application. Dyno numbers are nice, but once you get to the track, they dont' mean anything. My car only makes 310rwhp and 351rwtq. It's low compression (8.5) too. But when I go to the track, I have no trouble keeping up with, or beating cars that dyno'd more power. I ran a 98 SS Camaro that made 360rwhp and he beat me by .01. He was only 1mph faster at the finish too. Both on street tires. There's a member on Corral (and maybe here too) Killer Canary. He has a 95 GT VERT that runs low/mid 12s w/ 294rwhp! He has and FTI cam and AFRs, but not bad for a heavy vert.

The nice things about custom cams are easy to see. Lots of power EVERYWHERE in the powerband you desire. I chose idle to 5,000 for my power band. This thing pulls hard to 5700, and then I can toss it in 5th gear and get 25mpg on the freeway. Not just good peak power. Great drivability, and something you know is for you car. My car makes gobs of torque from idle until I shift. I can bum around town at 1100rpm in 5th gear, no bucking, no surging, no complaining from the car. I dont' even have to downshift either. Just a little more throttle and away it goes

5.0 HOtrain · Dec 3, 2004

runningmole said:
A friend had the TrickFlow stuff on his car, TWs, Stage 1 cam, Track Heat....and made 302rwhp. It doesn't take much power to get a foxbody to run quick in the quarter (assuming that is something you'll do w/ it) 330rwhp to 350rwhp is only 20hp, so it's not going to be a night and day difference. I would say get your fav heads and intake, and then have a custom cam specced for your application. Dyno numbers are nice, but once you get to the track, they dont' mean anything. My car only makes 310rwhp and 351rwtq. It's low compression (8.5) too. But when I go to the track, I have no trouble keeping up with, or beating cars that dyno'd more power. I ran a 98 SS Camaro that made 360rwhp and he beat me by .01. He was only 1mph faster at the finish too. Both on street tires. There's a member on Corral (and maybe here too) Killer Canary. He has a 95 GT VERT that runs low/mid 12s w/ 294rwhp! He has and FTI cam and AFRs, but not bad for a heavy vert.

The nice things about custom cams are easy to see. Lots of power EVERYWHERE in the powerband you desire. I chose idle to 5,000 for my power band. This thing pulls hard to 5700, and then I can toss it in 5th gear and get 25mpg on the freeway. Not just good peak power. Great drivability, and something you know is for you car. My car makes gobs of torque from idle until I shift. I can bum around town at 1100rpm in 5th gear, no bucking, no surging, no complaining from the car. I dont' even have to downshift either. Just a little more throttle and away it goes

Whats you're et/mph?

runningmole · Dec 3, 2004

5.0 HOtrain said:
Whats you're et/mph?

9.1 @ 83 View attachment 519923

It's not a real 1/8th track. It's in the parking lot of Qualcom Stadium (where the Chargers play). www.racelegal.com It's an organization to get racers off the street. Even cars w/ slicks don't run as well as on a real track. It's fun though.

5.0 HOtrain · Dec 3, 2004

runningmole said:
9.1 @ 83 View attachment 519921

Love it

runningmole said:
It's fun though.

Thats what it's all about isnt it

mike.

jocko · Dec 3, 2004

what do you guys think of afr 's or tfs heads with this cam(212 intake 218 exhaust,duration 264 int 276 exh,114 lobe sep,and 512 lift on int and exh)and nitrous and stock bottom end,do i have to flycut the pistons or not and which heads are less likely to need flycutting?and if the topic is worn out i apologize,please send me to the thread in wich it has been talked about,thanks.

maverick0716 · Dec 4, 2004

jocko said:
what do you guys think of afr 's or tfs heads with this cam(212 intake 218 exhaust,duration 264 int 276 exh,114 lobe sep,and 512 lift on int and exh)and nitrous and stock bottom end,do i have to flycut the pistons or not and which heads are less likely to need flycutting?and if the topic is worn out i apologize,please send me to the thread in wich it has been talked about,thanks.

You can go with a more agressive cam than that. Is that the Comp Cams XE264HR?

jocko · Dec 4, 2004

is the nitrous cam,i just dont want piston to valve clearance problems.

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