Are Hks 272 cams over kill for my 16g setup?

[92_talonGsXt]

Im about to trade my friend some parts for his hks 272 intake/ exhaust cams, and wanted to know if its overkill for small 16g setup?

 

[ziggo0]

What about Delta 272 regrinds?

 

[RedEyeBanDiT]

What about Delta 272 regrinds?

theres another thread that mentions them and they seem like the way to go if you have a short budget.

 

[knochgoon24]

What about Delta 272 regrinds?

Delta can grind an HKS spec 272 onto the stock cams. It's about $100ea after you send your cores in. That's the route I'll take.

 

[Demon33]

Good info, im really considering the hks 264/272 setup... Anyone else out there have any additional insight on this setup mated with the 16g...?

I run HKS 264/272 cams with an e316g and I really can't say anything bad about this combo. Switching from the stock cams and stock 14b turbo was a night and day difference. I didn't lose any low end, at least none that I could feel and I gained a TON of midrange torque and top end.

When I did my research on cams I had my daily driver in mind. I don't see the better part of 6k+ RPMs on a daily basis so ultimate high RPM, top end performance was not one of my cirteria, but good drivability and midrange was a must and the lope at idle is just icing on the cake. That's the reason I went with the 264/272 combo. With good midrange torque, accelerating through traffic is a breeze. I think the 264 cam also spools the turbo a bit quicker than a 272 would, but I don't have any hard numbers just some information I picked up during my research.

 

[ziggo0]

I have 2 extra sets of stock cams sitting around, can they regrind any?

 

[knochgoon24]

I have 2 extra sets of stock cams sitting around, can they regrind any?

Call them up.
Delta Camshaft

Phone: 253-383-4152
1938 Tacoma AVE S.
Tacoma, WA 98402
[email protected]

 

[Demon33]

If you update cams you might as well do valve springs and headgasket and studs as well. Something to consider if you decide to go that route.

Why? 272's or smaller don't need new valve springs. It's the 280's and bigger that need them. I've been running my 264/272 @ 25psi to redline on the stock bottom end, head gasket and head studs for quite some time now without issue.

Since the rocker arms and lifters have to come out during the cam install, I would suggest upgrading to 3g lifters if you haven't already upgraded them.

 

[EclipticalGS]

Test vehicle:

1994 Eagle Talon - 5spd
1991 Motor with roughly 40K miles, stock bottom and top end including head gasket
Turbo: 16G with ported exhaust housing
Exhaust Manifold: 2G ported
Intake Manifold: Stock
Throttle Body: Stock
MAF: 1G slightly hacked (screw backed out) with K&N filter & stock turbo intake pipe
Intercooler: Spearco 2-221 core with custom mandrel bent 2.25" diameter piping.
Exhaust: HRC O2 eliminator downpipe and 3" exhaust with no cat-conv.
Injectors & Fuel Control: Walbro 255lph Fuel Pump, 510cc/min injectors & S-AFC
Boost controller: Ric Gillis Manual boost controller, check ball & spring type.
Gas: 100 octane unleaded
Ignition: Stock with NGK BPR7ES plugs, timing set to stock specifications
Cams Tested

Stock Mitsubishi
Web Cams - Street Grind
HKS 264 Intake 264 Exhaust
HKS 264 Intake 272 Exhaust
HKS 272 Intake 272 Exhaust
Crower - Stage 3 Grind
Jun Stage 3 Grind
Peak Horsepower and Torque Results

Stock Mitsubishi Camshafts
Peak HP: 309.5
Peak TRQ: 295.3
Spool up on street: quick, full boost by 3.2K RPM in 3rd gear with good power when off boost and as it's coming onto boost.

Web Cams - Street Grind
Peak HP: 314.3
Peak TRQ: 295.3
Spool up on street: slower than stock, full boost by 3.4K RPM in 3rd gear with less power off boost than stock cams.

Crower - Stage 3 Grind
Peak HP: 322.6
Peak TRQ: 314.0
Spool up on street: much slower than stock (the worst of all the cams) with full boost hitting by 3.6-3.7K RPM and a definite loss in power off boost compared to stock cams.

Jun Stage 3 Grind
Peak HP: 323.7
Peak TRQ: 323.2
Spool up on street: Car was not driven on the street.

HKS 264 Intake 264 Exhaust
Peak HP: 323.1
Peak TRQ: 333.0
Spool up on street: As good as stock (3.2K RPM), with off boost power the same if not better than stock.

HKS 264 Intake 272 Exhaust
Peak HP: 324.2
Peak TRQ: 333.1
Spool up on street: Slightly slower than stock (3.3K RPM in 3rd gear) and a very slight loss in power in off boost conditions.

HKS 272 Intake 272 Exhaust
Peak HP: 325.2
Peak TRQ: 323.4
Spool up on street: Slower than stock, full boost by 3.4K RPM in 3rd gear with a slight loss in power in off boost conditions.

Dyno Graphs

Stock Vs. Web Cams
Stock Vs. Crower Stage 3
Stock Vs. Jun Stage 3
Stock Vs. HKS 264 In 264 Ex
Stock Vs. HKS 272 In 272 Ex
HKS 264 In 264 Ex Vs. HKS 272 In 272 Ex
HKS 264 In 264 Ex VS. HKS 264 In 272 Ex
HKS 272 In 272 Ex VS. Crower Stage 3
HKS 272 In 272 Ex VS Jun Stage 3
HKS 264's VS HKS 272's VS Crower Stage 3 VS Jun Stage 3

Conclusion

We reached the limitations of the 16G turbo during this test. The turbo would not make any more power nor would it hold more than 20psi of boost at higher RPM's. When the boost was turned up to 25psi the torque went to 350ft-lbs (HKS 272's) but the boost again would fall to 20psi and only make 327whp. From the dyno graphs it appears that for the best track times the HKS 272's would be the best choice. With a larger turbo choice (T3/T4) I think the difference in high RPM horsepower would be more apparent and would reflect better on the more aggressive camshafts. Time permitting we might run a test between a few of these camshaft on car with a larger turbocharger. In the meantime we'll be installing an FRH intake manifold and less restrictive intake tract on the 16g powered test car to see if we can squeeze a little more airflow out the little guy. For any questions or comments feel free to contact us at the shop (847-709-0530).

< LINK..

http://www.amsperformance.com/camtest.php

The only downside is Kelford and Delta regrinds werent studied

 

[GsXtC21]

I run HKS 264/272 cams with an e316g and I really can't say anything bad about this combo. Switching from the stock cams and stock 14b turbo was a night and day difference. I didn't lose any low end, at least none that I could feel and I gained a TON of midrange torque and top end.

Sweet man, thats exactly the kind of info i was looking for...!! Yeah i love how the hks are drop in cams and are true performers with much data to back it up even though they are on the high side when it comes to cash, obviously im a strong believer in, "you get what you pay for"...

 

[2gtalontsi]

Im about to trade my friend some parts for his hks 272 intake/ exhaust cams, and wanted to know if its overkill for small 16g setup?

If any has a set of cams let me have them,,,,,,,