What will my combo put out?
Thread Starter
Senior Member
iTrader: (1)
Joined: Oct 2005
Posts: 809
Likes: 8
From: Greenville WI
Car: 91 Firebird
Engine: Turbo 355
Transmission: T-56
Axle/Gears: 3.73:1 7.625" 10 Bolt
What will my combo put out?
I know these threads are repetitive, but spring is near and I still have not run my car on the road. I have a 355 small block 10.6:1 compression ratio, 4 bolt main w/ forged Weisco (sp) pistons, stage II connecting rods, ground stock crankshaft for the shortblock. I have Dart Iron Eagle 215cc/64cc cylinder heads. Clevite 246/246 @ .050, .498/.498 INT/EXT solid lifter camshaft. Scorpion 1.6 roller rockers, performer RPM intake manifold and a freshly rebuilt Holley 650 DP. All backed by a T-56 Transmission to 3.73 Richmond gears and a Zexel posi unit. Could somebody give me an educated guess on how this car will do HP/TQ wise, or quarter mile wise roughly? The only suspension mods I have are Spohn SFC's and Lakewood lower control arms. It's been under construction for over 2 years now and I get to take it out this spring.
Any help would be appreciated.
Zach
Any help would be appreciated.
Zach
id say since thats almost the same motor as was in my 88 formula xcept i had msd ignition and i had an auto with 373s too id say your car is gonna run like low 14s if your lucky
i do got that msd pro billit distributer and 6s box for sale if your interested my email is kevflemming@comcast.net
i do got that msd pro billit distributer and 6s box for sale if your interested my email is kevflemming@comcast.net
Supreme Member
iTrader: (2)
Joined: Jul 2005
Posts: 1,079
Likes: 0
From: currently Jacksonville NC
Car: 91 z28
Engine: 383 sbc, 88mm turbo a2w IC, CSU 750
Transmission: th-400 PTC 4000 stall
Axle/Gears: ford 9" 3.55 gear
first off, that cam is fairly small compared to the potential you could have with those 215cc runner heads. second you have a lot of duration for such a small cam so the powerband is going to be higher up probably around 2800-3000 rpm range, and you have a dual plane intake on top of that, the setup isnt realy in sync, but it should still be fun
Thread Starter
Senior Member
iTrader: (1)
Joined: Oct 2005
Posts: 809
Likes: 8
From: Greenville WI
Car: 91 Firebird
Engine: Turbo 355
Transmission: T-56
Axle/Gears: 3.73:1 7.625" 10 Bolt
Low 14's? You can't be serious. With my 305 tbi, w/ bolt ons and the gears i ran 14.9.
Zach
Zach
Supreme Member
Joined: Jul 1999
Posts: 1,011
Likes: 0
From: Saskatoon, Saskatchewan, Canada
Car: 86 Trans Am
Engine: 406
Transmission: TH350, 4200
Axle/Gears: Moser 9", 3.89
id say since thats almost the same motor as was in my 88 formula xcept i had msd ignition and i had an auto with 373s too id say your car is gonna run like low 14s if your lucky
i do got that msd pro billit distributer and 6s box for sale if your interested my email is kevflemming@comcast.net
i do got that msd pro billit distributer and 6s box for sale if your interested my email is kevflemming@comcast.net
With good heads and a healthy solid cam that car should be much faster than you have stated. Maybe not an optimized compbo, but no 14s slouch either IMO.
What kinda tires are you going to run though?
Thread Starter
Senior Member
iTrader: (1)
Joined: Oct 2005
Posts: 809
Likes: 8
From: Greenville WI
Car: 91 Firebird
Engine: Turbo 355
Transmission: T-56
Axle/Gears: 3.73:1 7.625" 10 Bolt
Well, my goal is to keep the car looking as stock as possible. For the track I will run different wheels and tires in the back. 275 50 R15 drag radials, not too sure on the brand yet. My goal is low 12's with this combo. Do you think this is attainable?
Thread
Thread Starter
Forum
Replies
Last Post
IMissMy86TA
Auto Detailing and Appearance
27
Aug 31, 2015 08:40 PM
NufNuffZ28
History / Originality
2
Aug 14, 2015 09:12 AM




