JMS Racing built 2.3/Super 99 - 947/640
JMS Racing built 2.3/Super 99 - 947/640
First off I can't say enough good things about this shop...Jorge, Frank, Antonio, Joaquin, Carlos...they're an amazing crew and other than myself I don't trust the car to anyone else anymore. Every issue that has come up they've been more than helpful in helping me resolve and they continue to innovate and make my car better and better. I told them I will now officially be putting the JMS stickers on her (and everyone that knows me knows I don't put any stickers on the car, period!)
I talked to FP and they said the HTA86 was maxed out at that boost level so I said let's go bigger. This round I went with the Super 99 with the 1.02 AR Tial housing. The only thing that we changed out was the turbo and we opened up with a 4 inch exhaust. Jorge said it could have made 1,000 pretty easily but the timing was only at 17 degrees...this was at 42psi also.
2.3L
race ported head
Supertech oversize valves
STM650 cams
STM SD intake
Boomba 75mm throttle body
Magnus V5
2.5inch IC piping
Buschur double pumper with 485's
2150's
-8 feed line
ETS turbo hot parts kit (manifold, downpipe, o2 housing - all v-band)/FMIC (4 inch)
SD on E-85 @ 41PSI
ProEFI ECU
4 inch exhaust
FP Super 99
Just as a side note the shop race car was trapping 164 on 49-50PSI likely over 1,000. On the dyno it topped out at 974 at 47PSI. He said he wouldn't push the timing on a customer's car (even tho I asked him to break 1,000 just to show it could be done)...not a single hiccup after 6-8 940+ dyno pulls. Yes that is Frank standing on the tie downs and Antonio in the back seat for weight, the tires were spinning pretty badly.
The HTA86 on a 2.3 was power on demand, even low RPM's she had some giddyup, on the Super99 you really have to down shift but once it hits about 5,500 it's amazingly fast how quick you hit warp speed.
The next changes may be S3 cams (I heard they produce more power but need to investigate more), new L19 headstuds, and maybe a new fuel system. The fuel pressure drops off a couple PSI above 39PSI.
Thanks again Jorge and crew!
Video - 05blue8 947hp pull
I talked to FP and they said the HTA86 was maxed out at that boost level so I said let's go bigger. This round I went with the Super 99 with the 1.02 AR Tial housing. The only thing that we changed out was the turbo and we opened up with a 4 inch exhaust. Jorge said it could have made 1,000 pretty easily but the timing was only at 17 degrees...this was at 42psi also.
2.3L
race ported head
Supertech oversize valves
STM650 cams
STM SD intake
Boomba 75mm throttle body
Magnus V5
2.5inch IC piping
Buschur double pumper with 485's
2150's
-8 feed line
ETS turbo hot parts kit (manifold, downpipe, o2 housing - all v-band)/FMIC (4 inch)
SD on E-85 @ 41PSI
ProEFI ECU
4 inch exhaust
FP Super 99
Just as a side note the shop race car was trapping 164 on 49-50PSI likely over 1,000. On the dyno it topped out at 974 at 47PSI. He said he wouldn't push the timing on a customer's car (even tho I asked him to break 1,000 just to show it could be done)...not a single hiccup after 6-8 940+ dyno pulls. Yes that is Frank standing on the tie downs and Antonio in the back seat for weight, the tires were spinning pretty badly.
The HTA86 on a 2.3 was power on demand, even low RPM's she had some giddyup, on the Super99 you really have to down shift but once it hits about 5,500 it's amazingly fast how quick you hit warp speed.
The next changes may be S3 cams (I heard they produce more power but need to investigate more), new L19 headstuds, and maybe a new fuel system. The fuel pressure drops off a couple PSI above 39PSI.
Thanks again Jorge and crew!
Video - 05blue8 947hp pull
Last edited by 05blue8; Feb 27, 2014 at 11:52 AM.
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Well does anyone have actual specs of the the STM 650s? I would never spend that much money on cams let alone not knowing the specs. Going by the shops word that they are the best doesn't cut it for me, just like Buschur 272 and 280. Tomei 280/290, Kelford 288-300 and GSC S3 would get the job done on top end for sure but top end isn't everything.
Joined: Dec 2010
Posts: 426
Likes: 22
From: Winchestertonfieldville (Rochester, NY)
Oh, and by the way, nice choice on cams
It's a tough call with the cams for sure. All I can be sure of is that Jorge made those numbers on S3's...if his car was still together I'd love to do a cam swap for comparison...I'll try to convince him to do the cam swap when they do the new headstuds and do some back to back pulls just to see where we stand. They're about to move shops and prepping a lot of cars for TX2K...they have lots of Supras, a couple GTR's, and a bunch of other stuff they're taking.
I'm traveling for work so I can't go to TX2K this year unfortunately but I really want to run it at the track so hopefully this summer I can get some passes in.
I'm traveling for work so I can't go to TX2K this year unfortunately but I really want to run it at the track so hopefully this summer I can get some passes in.
940 dyno number isn't enough? Why worry about what the dyno number is vs just running the car like it is. If it doesn't perform at the track/street then upgrade the cams. Dyno's are only tuning tools so your not out on the road doing 3rd or 4th gear pulls to get it dialed in. Who cares if it puts down 1100+ hp on the dyno. It only matters what you can drive the car to at the track. Just my 02 cents...
They also have never been tested against other OTS cams options to prove they make more power.
On a stroker I would put money on a R2 over any of those other cams.
Based on cam analysis on BR272's I'm sure the specs of the BR280's and STM650's really aren't that different from other OTS cams, just has their name on them for them to sell. Exactly why they don't post the specs of them, because then everyone would know they are just another cam, different name.
They also have never been tested against other OTS cams options to prove they make more power.
On a stroker I would put money on a R2 over any of those other cams.
They also have never been tested against other OTS cams options to prove they make more power.
On a stroker I would put money on a R2 over any of those other cams.
I cant say much about the STM 650 cams, other then that they are easy to dial in and idle almost identical to the S3's. They also have good drive ability just like the S3's.
Overall they seem like a good set of cams and definitely make power like s3's.
What sets GSC apart from the rest is their awesome pricing structure. Good price + quality parts = a lot of sales and happy customers. GSC is all i sell now mostly, and have sold a couple hundred sets probably to date.
Last edited by tscompusa; Feb 28, 2014 at 03:58 PM.






