black_ws6

I am still in the process of tuning and getting this thing tweaked, but I see so many people talking about FMS cams and G5X's and no one mentions the 231/237 any more. Is this cam that outdated?

777

iTrader: (21)

it wasn't designed to make big numbers like these other cams so not many people want it anymore...it was designed to be big and easy on springs...it has very soft lobes

SidewayzOZ

iTrader: (11)

I thought the 231/237 was a little harder on springs than say an F13?

777

iTrader: (21)

No. The tsp231 is probably the easiest on springs of the 230-240 degree ~.600 lift cams.

silverZ98

iTrader: (6)

once cam is tuned and all not a bad cam. and makes good power there is a few of us around here that are all over the 400 mark. the FMS cams are great cams too

SouthFL.02.SS

I had it in my car. Made great peak power, waaaaay up there in the rev range. It broke the 460rwhp mark with some TEA 1.5's, 90/90 and QTP HVM LT's. It seemed like the more you let it breathe, the more it would give you back. It kept giving and giving. It's your typical max effort cam.
Easy on springs, lopes hard. Still has its place I'd say. Great cam. The newer grinds provide just as much peak, with more meat under the curve, across the rev range however.

SouthFL.02.SS

It wasn't desinged to make big numbers? I disagree. The more breathing room I threw at this cam (heads, 90/90, QTP HVM LT's), the more it gave. 460+rwhp ain't too shabby.

5POINT7

Ha, look at your trap speed man. I think you answered your own question. F-13,14,15's are all trapping 116-122 regardless of the quality of the tune.

The 231 is outdated, even the TSP reps on here agree.

SouthFL.02.SS

I trapped 118mph, full weight, daily driven 17" wheel/tires. Cam only with the 231/237. Not too shabby eh?

Edit: I will admit it's an outdated cam. But so are so many other good cams.

5POINT7

Who tuned it Carlos? That's probably the best cam only 231 trap I've ever seen.

SouthFL.02.SS

Kelley Chevrolet' LS1Edit on their dyno. They're not the best tuners by any means. They did a decent job with WOT, but were never able to get startups running too well.

black_ws6

The tune I had was set at 24 degrees in at WOT/high rpms. I did some logging and it was only 18-22 degrees. I now have it set for 28 degrees and it reads around 28 to 30 degrees. I should see better numbers the next time I get to the track. FWIW, I went 12.75 @ 113.74 MPH with the same setup and a TR220 cam last year on street tires.

777

iTrader: (21)

i guess i should rephrase this to say that it's main focus was on spring life...that is what tsp has said...

fyi my cam isn't all that great on start-ups either...so i think it may just be the cam...i had formato tune it...

SouthFL.02.SS

The car's new owner retuned it, fixed the VE, and has it running well on cold start ups now.

777

iTrader: (21)

hmm...i guess i need to finally suck it up and take it back down to tampa and let jeremy fix it oh well at least it's not going to cost anything

Jon@Texas-Speed

iTrader: (18)

The cam itself consistently adds 50 RWHP. Yes the lobes aren't as aggressive as an XER lobe or most of the lobe profiles out today. The cam was designed about 2 years when there weren't any springs to support the big lifts and aggressive profiles out today. The cam is still a good cam and makes good power. With a good tune the cam should drive fine. I had this cam in my car for about a year and a half driving both in town and on the highway every day! By the way, the cam loves nitrous!

black_ws6: What bolt ons do you have on the car? What was the weather like? All those things play into figuring if you are trapping the right e.t. and MPH. I wouldn't think the cam alone is to blame for the low MPH.

black_ws6

Last year:
SLP LID, smooth bellows, LT's, y-pipe, loudmouth
high flow cats
LS6 intake
TR220

This was good for 12.7x's @ 111-113 MPH on street tires

I have added: 231/237 cam, Comp 918's, Ported TB, MT Street Radials and a different tune that I believe was not too good. I still need to go to the track to see for sure, but I couldn't break the tires loose from a 1st gear roll at about 10 MPH with the original tune I loaded this winter. Now I can blister the tires from a 10-15 MPH roll in first with the new tune I am working on.

The day I went to the track weather was decent, sunny and about 70.

SouthFL.02.SS

What rear gear? That cam needs 4.10's

amwellls1

I told you to bring it down so we can work on that tune and those 3.42's are killing you!

black_ws6

Actually I am planning on it in a couple weeks. I have a software upgrade tommorow and I am insulating my house Sunday. Are you free the following weekend?

BTW, I may have a bad O2 sensor that is causing the car to stay in open loop. I am going to try to get that taken care of before we try to tune it.