Need help choosing a turbo and a few other things

[400hp93talon]

Alright here it is guys. I bought a 6bolt 2.3 stroker today and along with this motor I'm going to run a Ported head with oversized valves,280 cams,sheet metal intake,some sort of tubular manifold(haven't decided yet so if you have any opinions let me know) with 1150cc injectors(E85)....My goal is 550whp.....And with it being a stroker motor I figure I need a turbo that spools up pretty quick and still make the numbers......I've got something else to ask it may be stupid but here it goes I had 264/272 cam combo on my last motor and the torque numbers where signicantly higher than someone that ran 272's....Has anybody tried running a 272/280 combo to see the outcome? Just curious because if that would pick even more torque up on a stroker that would be killer.

 

[dsm-onster]

Strokers speed up spool. You don't need to get a turbo that spools faster for a stroker. Turbos are not engine rpm dependent components. They are airflow dependent.

Bolton turbos that flow enough air for 550whp without going too large: FP DSM82 or DSM86, FP3065, s258/9, 56mm/58mm/60mm Hx40. But, I would suggest not limiting yourself to a bolton pattern however: gt3082 (non bolton fp3065) or true gt35r with nomore than a .63 a/r garrett turbine housing, s258/9, any hx40 with the bep t3 .70 housing, PTE sc61 or 6262 or similar depending on the likelyhood of wanting more later.

And you can opt for twinscroll setups. Shearer has some nice twin scroll manifolds. The manifolds are very expensive. But running something like an hx40 would offset the high cost of a twinscroll manifold and gates.

You already are going to have transmission shreading problems as is. I would stick with 280/280.

Here's another option if you want **more** torque even lower: fp3 cams were great cams for strokers back in the day and they were simply fp2x cams with more dialed in intake advance. FP2x cams are similar to fp2 and hks 272 cams in duration and lift and overlap, but have a little more ramp rate. So realistically, you can sell your 264 intake cam if you still have the 264/272 and pick up one 272 cam and an adjustable cam gear set and make good power LOWER than what 280s will give with a stroker. In fact, folks have made good power with stroker setups (well within your goal) with hks 272s straight up.

 

[400hp93talon]

Strokers speed up spool. You don't need to get a turbo that spools faster for a stroker. Turbos are not engine rpm dependent components. They are airflow dependent..

Bolton turbos that flow enough air for 550whp without going too large: FP DSM82 or DSM86, FP3065, s258/9, 56mm/58mm/60mm Hx40. But, I would suggest not limiting yourself to a bolton pattern however: gt3082 (non bolton fp3065) or true gt35r with nomore than a .63 a/r garrett turbine housing, s258/9, any hx40 with the bep t3 .70 housing, PTE sc61 or 6262 or similar depending on the likelyhood of wanting more later..

My buddy is running an Hx40 with a bullseye housing and hes making 577awhp so Im leaning toward that route and its not crazy expensive. I've notice people running buschur racing 20g's also and those seem to perform well and almost instantly spool it seems. I haven't looked into Borgwarner turbos really but I shouldn't count them out they make some good performing ones and they are fairly priced.

And you can opt for twinscroll setups. Shearer has some nice twin scroll manifolds. The manifolds are very expensive. But running something like an hx40 would offset the high cost of a twinscroll manifold and gates..

I looked into the shearer manifolds already and they are just too expensive. If you have any other suggestions let me know I'm all ears.

You already are going to have transmission shreading problems as is. I would stick with 280/280..

I have already taken this into consideration and Im probably going to buy one from sheptrans. There are a couple other companies I need to check out still so I'm not sure yet.

Here's another option if you want **more** torque even lower: fp3 cams were great cams for strokers back in the day and they were simply fp2x cams with more dialed in intake advance. FP2x cams are similar to fp2 and hks 272 cams in duration and lift and overlap, but have a little more ramp rate. So realistically, you can sell your 264 intake cam if you still have the 264/272 and pick up one 272 cam and an adjustable cam gear set and make good power LOWER than what 280s will give with a stroker. In fact, folks have made good power with stroker setups (well within your goal) with hks 272s straight up.

I have hks cams now and I'll probably just pick up some new hks 272s due to the fact I haven't ever heard anything bad about their cams. I'm not an expert with cam specs so I take it when you say the fp2x cams have a little more ramp rate than the fp2 is that the valve opens faster and stays open longer then closes faster letting more air in the chamber. Thanks again

 

[400hp93talon]

I bought an hx40 with a bep housing for a good price!!!

 

[JusMX141]

Nice choice- proven turbo, has powered plenty of cars into the 10's while trapping speeds in the 130's.

Good luck on your adventure.

 

[gsxkid81]

I bought an hx40 with a bep housing for a good price!!!

would that be a bep t3 .70 or a bep bolt up?either way you should make your goals

 

[Absit]

You're going to need bigger injectors..1400s minimum.

 

[richard33]

You're going to need bigger injectors..1400s minimum.

I agree. I would go bigger than 1400s even. You can get some bosch 1600s for a good price. Thats what I have and they work fine.

 

[400hp93talon]

Got some BC272's for cams.....As for the injectors I think that 1400'ish injectors should definately get above 570whp.....I think 1600 would be overkill but I could always upgrade later down the road too.

 

[daren_p]

Got some BC272's for cams.....As for the injectors I think that 1400'ish injectors should definately get above 570whp.....I think 1600 would be overkill but I could always upgrade later down the road too.

Please note: Not all "272" cams are created equal. Not that people haven't made power with them or ran quick but the BC 272's would be on the smaller end vs other "272" cams on the market.

 

[airmail96]

Have you looked into that dark performance T-4 manifold that MAPerformance sales? It is a pretty good buy if you ask me.

 

[400hp93talon]

Please note: Not all "272" cams are created equal. Not that people haven't made power with them or ran quick but the BC 272's would be on the smaller end vs other "272" cams on the market.

What would you prefer.......I want to get dual valve springs and run a set of 280s but on a budget and got these cams cheap.

 

[richard33]

Got some BC272's for cams.....As for the injectors I think that 1400'ish injectors should definately get above 570whp.....I think 1600 would be overkill but I could always upgrade later down the road too.

What pump? I don't think 1400's will be enough for your goal unless you have a very high flowing pump or a few decent flowing ones . I have an intank walbro, inline bosch, and 1600's. I was out of fuel with an hx35 making 527 on e85. My next fuel setup- fuel lab prodigy pump #42402, -10 feed, FIC fuel rail, -8 return to AFPR, and probably -6 back to the tank. You rather have an overkill fuel setup than to be out of fuel and have to re do everything.

 

[daren_p]

What would you prefer.......I want to get dual valve springs and run a set of 280s but on a budget and got these cams cheap.

Well I guess what I prefer would be Kelfords, since that's what I just switched too I will be running their "264" cams but don't let the name fool you, their 264's are "bigger" then most other "272" cams on the market. They would actually be closer to the BC 280's then the BC 272's. I went with their 264's as I was trying to pass emissions legally but with their duration/lift they still may not. My goal is 550 to maybe 600 crank hp, & I think this cam will do that & still be a great street cam not giving up the mid or much bottom.

FP also make a nice cam, for you I'd recommend their 4R's. The Kelford "272" are slightly bigger then the FP4R's & should meet your goals no problem as well.

If you do stik to BC, I'd recommend cam gears or atleast degree your cams so you know what your cams are doing as BC have been known to be ground off, if your just installing/dropping them in straight up.

 

[400hp93talon]

I keep reading about kelford and fp cams and I'm going to sell these BC's and get something else!! Thanks Daren!