Are stroker kits bad for forced induction?

tostaroller · 10-07-2003

The way i understand if your going all motor it is better to have high compression however if your going forced induction you want low compression as the forced induction will raise it anyway. So if you had a 351W and wanted to supercharge it then you wouldnt really want to have a stroker kit in it. I'm sure it can be done but isnt going to require you to balance the internals perfectly? Even so with a large stroker kit the connecting rods stand a pretty high chance of getting thrown or broken. Wouldnt it be wiser to just bore your engine like .30 over and then attach the forced induction? Sorry if this is confusing but i'm trying to figure out how i would want to build my 351w when i get it.

driftpin · 10-08-2003

Just because you are stroking it doesn't necassarilly mean that your compression will be higher. Yes if you just did it too a normal 351 windsor and did nothing else it would raise compression but when your stroking an engine you want to look at all the variables. You heads combustion chamber can increase or lower compressions, your piston can increase or lower compression. The best advice I could give you is decide what you want the car to do and do as much planning and research as possible. These boards are great for advice but advice is advice and you can get real bad advice on these boards. The best thing to do is call a respected engine builder and just tell him or her what you want. I had a 351 W in an 86 TBird and they have the potential to put down some serious numbers if built right w/out stroking it. Adding a blower to one sounds like alot of fun.

Mad Max · 10-08-2003

Adding a SC to a stroker is one of the best things out there as long as the compration is keep low. The SC helps fill the cylinder beter with ford SB heads. Head are made to flow a cretain amount of air. When you stroke a motor, those heads can't always keep up with the amount required to fill the cylinder properly. You can alway port the heads out replace them or put on a SC to flow the proper amount of air.

95mustanglover · 10-08-2003

So If I Am Rebuilding My Motor It Be Best To Go All TrickFlow Heads Intake And A Matching Cam For A 331 Stroker Then Put A Supercharger On It?
Which Supercharger Be best For That Setup ?
I Am Going All Forged Parts
And Is It Good Idea To Put Zex Kit Back On With 150 Shot?

driftpin · 10-08-2003

Quote:

Originally posted by 95mustanglover
So If I Am Rebuilding My Motor It Be Best To Go All TrickFlow Heads Intake And A Matching Cam For A 331 Stroker Then Put A Supercharger On It?
Which Supercharger Be best For That Setup ?
I Am Going All Forged Parts
And Is It Good Idea To Put Zex Kit Back On With 150 Shot?

Make sure you buy the proper pistons for a blower application like a -17 dished or -23. Modmax makes some decent forged pistons.

I don't think it's will be a good idea to run both power adders. I had thought about doing that and researched it quite alot and found that the better way to get the power was to get an intercooler for my blower. That cools the air which allows you to force more air with no detonation. If I were to buy another blower I wouldn't buy another Paxton, I would go with an intercooled Procharger. I'm not sure if you are going injected or a carb but they offer both and claim much better gains then a root blower and I have no reason not to believe them, I have a couple friends running the centrifugal Prochargers and one is running one chain driven @ 45lbs of boost.

95mustanglover · 10-09-2003

Hmmm.... Wasnt Likin Paxton And I Plan To Stay Fuel Injected
Will Look Into Zex System Call Them And Ask, U Know What Ever I Will Have To Do

driftpin · 10-09-2003

If you are going to ad both power adder NOS and a blower, look forward to this, (I found this in one of our members picture gallery that was running high comp and a blower and you think you can add nitrous too. Just stroke it and blow it with an intercooler with about 20lbs of boost and some 17cc dished forged pistons and hold on!!

95mustanglover · 10-11-2003

Ok Then Can I Switch Nos To Another Veichle Say A 350 Gm Chevy S-10?

driftpin · 10-11-2003

You would have to check with Zex for that. I know that their systems are pretty application specific. Did you already buy the system? I'm sure it'sjust a matter of nozzles and jets, that is if the S10 is injected too. Otherwise you would need a carb plate system, goes in between the carb and the intake, I believe. Check with Zex for sure.

Monkey Boy · 10-11-2003

If you already have the NO2, just forget the blower and run the NOS.

95mustanglover · 10-11-2003

i Already Have The Nos But Wouldnt A Blower Give Me All Power All The Time
Would It Give Me More Power Than Nos Overall Wouldnt It

driftpin · 10-12-2003

When you have a blower say like mine, your only under boost when you are getting on it. You can creep up to 80 -90mph without any boost. It is when you get on the throttle and the RPM's get up around 3100 and up that I feel it and see it on the gauge, come under boost. So its no like having your nitrous on all the time unless your foot is in it all the time and that will beat on your engine just as bad as driving around squirting shot after shot.

Nitrous is good and an awesome way to get power but with a stock bottom end your limited to about a 125 shot. I've read many articles that say that anything beyond that its pushing the envelope. If you get a blower your not going to feel the snap you do with nitrous as it comes up more gradual but you are limited to a sense with a blower too, I wouldn't run more that 10 lbs of boost in a stock bottom end either. So it's six of one half dozen of the other. I imagine if you put a stock mustang with a 125 shot of juice against a stock mustang running 6-9 lbs of boost, it would be a close race.

I guess the only drawback to the nitrous vs blower debate is that the blower doesn't have to be refilled after 5 runs.

Some guys get the hp with the bottle, some do it with a blower, some with turbo, some with turbo and nitrous. Anyway you look at it, if you want more, you have to spend more. A new and decent bottom end and you could squirt a 300+ shot in, but then in come the other variables, tranny, driveshaft, rearend, axles, studs, suspension. It all depends how much speed can you buy.

95mustanglover · 10-12-2003

Well I Am Leaning Towards A Blower Under 20 Pounds Of Boost
Keep In Mind B4 I Blow The Engine There Will Be A Complete Rebuild Pistons Bearings ALL And Made To A 331 Trick Flow Stroker
I Launch At 3000 Rpm So I Dont Care When It Kicks In But Wannted To Know Price Difference 45 Dollars A Bottle And 5 Races Isnt Worth It To Me When I Could Be Doing It All The Time
I Love Street Drivin Where U Can Just Get On It
I Plan To Do Drivetrain Work And Alittle Brake And Suspension
Alumminum Shaft And High Performance Clutch
Big Brakes, Rims, Tires

driftpin · 10-12-2003

Well the next supercharger I buy is going to be a Procharger D1SC Three core intercooled and would also be a great S/C for your ride unless you prefer another brand. If you do the research you will end your search with a Procharger. How does a 70-80%HP gain sound? If you like the sound of it, procharger is the way to go. I have a friend that won last years NMRA renagade series that has a procharger running 45LBS of boost chain driven. If you are stuck on blowing that motor and saving money on N20 refills then step up and get the best. A D1SC has all the boost you'll ever need, it maxxes out at 32 lbs. If your thinking of running anything near 20 lbs of boost, you will need all forged, if not billet, bottom end. I would even go with a billet E331 cam. Don't spare anything. Get the best of the best and see if you can get that pony into the 9's

tostaroller · 10-12-2003

Yes, it sounds good. Do you know anyone that has a killer 351 set up and whats in it? I'm not sure on everything to use in the engine yet but i'm looking for some killer power. I've never heard much about billet materials though so i'll have to look into that.