gt35r 2.3L build, dsmlink, which cams???

[TSisleeper]

I've been around dsm's for years and I'm just wondering what everyone's opion is on my current build for my daily driver. (unfortunetly I'm a "noobie" here so I can't post this in the correct forum... "whatever" )

It's mostly done (car) but I'm not sure which cams I should go with for the best "all around performance".

272's 280's or FP3 (or 3x's)(or what base timing and fuel pressure)?

2.3L stroker 6 bolt with precision (bolt on dsm housing - tail 38mm wastegate on punishment racing's o2 housing - vented back into the downpipe) scm6152 sp antisurge cover with dual ball bearings (gt35r) 9.0:1 compression, arps, MLS, act flywheel, SBR 4000 clutch, s/s line, prothane motor mount inserts, dsmlink, zeitronix wide band, 255hp, APFR, 950cc FIC's, crower single springs and titanium retainers, ferrea s/s valves, etc.
blah blah blah....

so what cams would you guys (2.3L owners) say to go after
don't be afraid to list cams I didn't (like crowers, webs, comps, etc.)

looking to do 450 to 500 whp on 93 oct. (21 to 26 psi)
oh BTW I have a 90 5 speed fwd turbo (getting ripped off the road, when the tires hook up somewhere in the 3rd or 4th gear range, by torque steer is my goal... long drive to work and I need to be entertained!!!) (shep stage 2 trans with full LSD is on it's way)

~ciao~

 

[90laserRSfwd]

sorry this is my actual screen name, I forgot I got a friend of my brothers to type the starter thread. Anyway which cams guys? And what base timing and base fuel pressure?

 

[Bmxr152]

I dont have a 2.3 but my buddy has a 2.3 and he is running the comp's 101400's. he has simular mods excluding thr gt35r. He has a 60 trim turbo and they pulled was harder and didnt fall off like the set of HKS 264's he had. The comp cams and forced performance cams are very simular. The FP 3x's are a little more agressive than the comp 400's. I think the comp 400's or FP 4's would be good for your setup

 

[90laserRSfwd]

I have yet to install the crower springs and retainers and I know the FP cams require duals so maybe I could sell the crowers if that's the route I end up going. I was origially thinking use 272's with the crower springs and an 8K rev limit but I'm not sure, and I already have the 950s' and 'link so I don't wanna go to EMS and bigger injectors, especially not with a 35r

 

[Bmxr152]

I take my car to 8K rpm everytime with stock head besides the comp 200's. Only the fp x's require dual valve springs if i remember.

 

[JayRolla]

I would go with FP3x's, my mechanic went from 272/272's to those and he said it made a huge difference. He said running the 272/272 combo in a stroker is compared to stock cams in a 2.0. I would go big.

 

[sbengineering]

If your running a/c and the car is fairly heavy, (stock form), and a big turbo, then i would recommend 272's (i prefer Brian Crower's). They will help with getting a little more power in the lower RPM ranges, (which helps for the street). 272's should be kept under 8k.

Your two biggest considerations for 280's would be; if your not too interested with low rpm drive ability and are planning to rev 8k plus.

Also looking at your compressor map of your turbo seeing where your gonna be at for given rpm's and boost should be a factor as well. Then looking at your total engine flow numbers. These are the calculations where the 2.3 will play a big part. This will help you decide how high you want to rev. Usually for a street car there needs to be a little trade off somewhere, (i.e. better drive ability at the cost of lower high end)

 

[JayRolla]

If your running a/c and the car is fairly heavy, (stock form), and a big turbo, then i would recommend 272's (i prefer Brian Crower's). They will help with getting a little more power in the lower RPM ranges, (which helps for the street). 272's should be kept under 8k.

Your two biggest considerations for 280's would be; if your not too interested with low rpm drive ability and are planning to rev 8k plus.

Also looking at your compressor map of your turbo seeing where your gonna be at for given rpm's and boost should be a factor as well. Then looking at your total engine flow numbers. These are the calculations where the 2.3 will play a big part. This will help you decide how high you want to rev. Usually for a street car there needs to be a little trade off somewhere, (i.e. better drive ability at the cost of lower high end)

In a stroker he wont have to worry about losing a little low end power.

 

[sbengineering]

 

[paper_clip_boy]

I just thought that this info should be added for the sake of people who have never heard or run some of these bigger cams.

Comments on the FP3X's: Amazing Cam for amazingly powerful cars, But things do suffer.
A local Talon that runs 9.5's at 150mph has these cams and DAMN. Although the car is Meant as a Drag Only beast, It still is Driven to and from the track, so they tuned it to great Driveabilty using EMS, But Idle still suffers. Its much harder to turn over and Extremely Lumpy even at 1200rpm.

Put it this way, If Cops in your area are the type that just love to pick on the Import scene, well these cams will get you noticed, Might aswell just shut off the car if your idling beside a cop or your attract a major heat score from them.

With this information, I will still be using these cams on my 2.3L Build. The goal is 10's and these cams will definetly help get you there.

 

[90laserRSfwd]

I have modified A/C. I decided that the R134a is over rated so I switched to 80.2 (80mph with 2 window's down). Thanks for the replies, keep them coming. My car needs be able to idle that's partically why I said 272's. and I said 280's because it's a stroker. and FP3x's because my car is all "stock"

 

[JayRolla]

I just thought that this info should be added for the sake of people who have never heard or run some of these bigger cams.

Comments on the FP3X's: Amazing Cam for amazingly powerful cars, But things do suffer.
A local Talon that runs 9.5's at 150mph has these cams and DAMN. Although the car is Meant as a Drag Only beast, It still is Driven to and from the track, so they tuned it to great Driveabilty using EMS, But Idle still suffers. Its much harder to turn over and Extremely Lumpy even at 1200rpm.

Put it this way, If Cops in your area are the type that just love to pick on the Import scene, well these cams will get you noticed, Might aswell just shut off the car if your idling beside a cop or your attract a major heat score from them.

With this information, I will still be using these cams on my 2.3L Build. The goal is 10's and these cams will definetly help get you there.

Yes they are a great cam. My mechanics car idles great. Hes running dsmlink and 1600cc injectors and its still idles fine. I mean its a little lopey but not bad for what cams he has.

 

[90laserRSfwd]

link with 1600's?

 

[90laserRSfwd]

It's funny how things change when you are a DSM owner. I've decided (budget) to go with the 272's because I'm going to be getting a smaller turbo (long story short my PTE 6152 got stolen). What are my options for a 400whp 2.3L, turbo wise, oh and I only have about 800 left to spend. Also what base timing and base fuel pressure? Thanks

 

[Hop]

I run ~40psi base pressure with my PTE 1600cc injectors to clean up idle just a little. DSMLink handles those monsters just fine. Idle is stock-like even with FP3 cams too.

 

[sbengineering]

Owning a DSM is in no way cheap. As far as fuel pressure, I run 42-45psi on all my cars i do, keeping it around stock. (others may differ). And as far as timing i set it all by exhaust temps. and how it sounds and feels. Someone will need to tell you the exact settings.

 

[JayRolla]

Link can run any injector almost. Great program. I would keep fuel pressure around 37psi on a 1g and wouldnt exceed 42-45psi.