Cam For TPI/HSR, Lots of Confusion.
Thread Starter
Junior Member
Joined: Feb 2007
Posts: 11
Likes: 0
From: San Antonio, TX
Car: 1989 Formula 350
Engine: 350 TPI
Transmission: 700R4 Auto
Axle/Gears: 3.27 Borg Warner
Cam For TPI/HSR, Lots of Confusion.
Okay, I have an 89 Formula 350, and I have decided that I want to go with a lopey/choppy idle with at least 300 RWHP and 300 RWTorque, or something close to those numbers, starting off with a stock L98.
But to do that I have found that I have to ditch the TPI in exchange for a Holley Stealth Ram. And I have already bought (for 100$ from a friend) a Comp Cams Xtreme Energy Camshaft and the cam specs are as follows:
XR282HR-10
INT EXH Lobe Separation: 110
ADV DUR: 282 288
DUR@.050 230 236
Valve Lift: .510 .520
I want a good daily driver 80% Street 20% strip. But I have found I need different heads, but I do not know which ones.
I also know that with that cam supposedly it will make the car run pig rich because of the computer telling it to add more fuel to compensate for the excess are due to the heavy lift.
I want my car to sound like this (he has a TPI)
http://ca.youtube.com/watch?v=11Ps7DyndBE
But the guy says its NOT a daily driver. WTF!!!
Apparently this car is a daily driver, and it has more or less the sound I want.
http://www.youtube.com/watch?v=RizJF...eature=related
I am tired of every F-body/Mustang I see around here and everywhere I go to have the tame-sounding idle. Its boring, and I want to have the only third gen in San Antonio that has an idle like that.
So I guess my main questions are:
1. is that cam fit for a daily driver? Will it give me that lopey sound?
2. What computer modifications need to be done?
3. Is the HSR a good intake for the cam?
I want decent power, a good running engine, and a lopey idle. Is there no such thing?
I just wanted to ask you guys before I spent some serious money and ended up without a nice car to drive around town.
But to do that I have found that I have to ditch the TPI in exchange for a Holley Stealth Ram. And I have already bought (for 100$ from a friend) a Comp Cams Xtreme Energy Camshaft and the cam specs are as follows:
XR282HR-10
INT EXH Lobe Separation: 110
ADV DUR: 282 288
DUR@.050 230 236
Valve Lift: .510 .520
I want a good daily driver 80% Street 20% strip. But I have found I need different heads, but I do not know which ones.
I also know that with that cam supposedly it will make the car run pig rich because of the computer telling it to add more fuel to compensate for the excess are due to the heavy lift.
I want my car to sound like this (he has a TPI)
http://ca.youtube.com/watch?v=11Ps7DyndBE
But the guy says its NOT a daily driver. WTF!!!
Apparently this car is a daily driver, and it has more or less the sound I want.
http://www.youtube.com/watch?v=RizJF...eature=related
I am tired of every F-body/Mustang I see around here and everywhere I go to have the tame-sounding idle. Its boring, and I want to have the only third gen in San Antonio that has an idle like that.
So I guess my main questions are:
1. is that cam fit for a daily driver? Will it give me that lopey sound?
2. What computer modifications need to be done?
3. Is the HSR a good intake for the cam?
I want decent power, a good running engine, and a lopey idle. Is there no such thing?
I just wanted to ask you guys before I spent some serious money and ended up without a nice car to drive around town.
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: Cam For TPI/HSR, Lots of Confusion.
yes that cam will work and give the idle you want. Good daily driver? eh... it can work ok depending on your definition of daily driver. I think it would be ok in my book tho but i like aggressive street setups
its more of a 70/30% street/strip setup. Better daily driver cam is the cc503 which is next step down from that cam and on a 112 lsa. 224/230
If that cam you got now was on a 112 lsa which they do offer, it be abit more friendly on the street but you can get that to work well with a great tune.
I'd suggest better heads but mild cleaned up stockers will give you 300whp with HSR. Probly close to 325whp. Aftermarket heads will approach 350-375whp easily. If you use stockers, clean up the intake ports with a grinder and have the heads machined to handle the lift of that cam. add screw in studs and good valve springs.
WILL NEED TUNED. stock ecm wil not handle that setup. You will also want a higher stall torque converter... i'd go atleast 2800 for a daily driver.
HSR is a great intake for that setup. Thats the setup i was gonna run on my stock L98. stock heads with mild port job, new springs/etc and HSR with that cam on a 112 lsa. I was looking for aggressive street driving but alot more strip time. more cruise/daily i would have gone with the smaller 224/230 cam
It will be streetable enough to daily drive but it will be an aggressive street setup thats for sure
its more of a 70/30% street/strip setup. Better daily driver cam is the cc503 which is next step down from that cam and on a 112 lsa. 224/230If that cam you got now was on a 112 lsa which they do offer, it be abit more friendly on the street but you can get that to work well with a great tune.
I'd suggest better heads but mild cleaned up stockers will give you 300whp with HSR. Probly close to 325whp. Aftermarket heads will approach 350-375whp easily. If you use stockers, clean up the intake ports with a grinder and have the heads machined to handle the lift of that cam. add screw in studs and good valve springs.
WILL NEED TUNED. stock ecm wil not handle that setup. You will also want a higher stall torque converter... i'd go atleast 2800 for a daily driver.
HSR is a great intake for that setup. Thats the setup i was gonna run on my stock L98. stock heads with mild port job, new springs/etc and HSR with that cam on a 112 lsa. I was looking for aggressive street driving but alot more strip time. more cruise/daily i would have gone with the smaller 224/230 cam
It will be streetable enough to daily drive but it will be an aggressive street setup thats for sure
Thread Starter
Junior Member
Joined: Feb 2007
Posts: 11
Likes: 0
From: San Antonio, TX
Car: 1989 Formula 350
Engine: 350 TPI
Transmission: 700R4 Auto
Axle/Gears: 3.27 Borg Warner
Re: Cam For TPI/HSR, Lots of Confusion.
Thanks!!! I REALLY appreciate the feedback!!! Lots of GOOD news!
Wow once I get this cam, heads, HSR etc. in It'll have more power than an LS1
I'll go aluminum drive shaft, Hooker Headers, and Borla Cat back.
Another question. Should I keep the stock dual cat setup?
Also, I have a question about the Smog pump & equipment. Will it affect my computer if I buy the non-AIR style headers? I was told it will, but if it DOES I might as well get it burned for that at the SAME time I get it tuned for that cam.
"Good daily driver? eh... it can work ok depending on your definition of daily driver."
Well something to take me to work, back (I live 5 minutes TOTAL from my job) something to cruise with my girlfriend in, something to go out of town every now and then. Im thinking gas mileage will go to ****. Around 10 in the city 17 on the highway, you think It might be better?
I guess for the ECM tune I shall go to Lethal Performance here in San Antonio. It is one of the most acclaimed engine shops out here.
Wow once I get this cam, heads, HSR etc. in It'll have more power than an LS1

I'll go aluminum drive shaft, Hooker Headers, and Borla Cat back.
Another question. Should I keep the stock dual cat setup?
Also, I have a question about the Smog pump & equipment. Will it affect my computer if I buy the non-AIR style headers? I was told it will, but if it DOES I might as well get it burned for that at the SAME time I get it tuned for that cam.
"Good daily driver? eh... it can work ok depending on your definition of daily driver."
Well something to take me to work, back (I live 5 minutes TOTAL from my job) something to cruise with my girlfriend in, something to go out of town every now and then. Im thinking gas mileage will go to ****. Around 10 in the city 17 on the highway, you think It might be better?
I guess for the ECM tune I shall go to Lethal Performance here in San Antonio. It is one of the most acclaimed engine shops out here.
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: Cam For TPI/HSR, Lots of Confusion.
A big camshaft with a 110 LSA does more harm than good on a street car. I would definitely get that cam with a 112 LSA, it will make it tons easier to tune and it will get better gas mileage and drive better on the street. Yes you should keep your dual cat setup and keep the emissions devices on it as well, as its the law. For heads you cant go wrong with either Trick Flow 195's or the new AFR Eliminator 195's.
My setup is Trick Flow 195 heads with a Lunati 226/232 camshaft on 113 LSA. Its about as big as I would go on a street car, as mine is my daily driver. The dyno numbers in my sig are new but the ET is the old combo.
My setup is Trick Flow 195 heads with a Lunati 226/232 camshaft on 113 LSA. Its about as big as I would go on a street car, as mine is my daily driver. The dyno numbers in my sig are new but the ET is the old combo.
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: Cam For TPI/HSR, Lots of Confusion.
thats the thing its hard to have lopey cam sound with good tuning ability and daily driver status
But your definition of street daily driver and your goals mentioned there, i think you will be ok. I just like that cam ona 112 or go with the smaller cam on a 110. You can run that cam just takes some time tuning thats all. Being maf it will help you. SD is a bit more finicky about vacuum 
i plan to run a 109lsa on my 383 HSR...we'll see how that goes
But your definition of street daily driver and your goals mentioned there, i think you will be ok. I just like that cam ona 112 or go with the smaller cam on a 110. You can run that cam just takes some time tuning thats all. Being maf it will help you. SD is a bit more finicky about vacuum 
i plan to run a 109lsa on my 383 HSR...we'll see how that goes
Thread Starter
Junior Member
Joined: Feb 2007
Posts: 11
Likes: 0
From: San Antonio, TX
Car: 1989 Formula 350
Engine: 350 TPI
Transmission: 700R4 Auto
Axle/Gears: 3.27 Borg Warner
Re: Cam For TPI/HSR, Lots of Confusion.
I just don't want my car to like, not run just by driving it around.
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: Cam For TPI/HSR, Lots of Confusion.
it will decrease vacuum at idle and make the brakes hard to press. With stock stall speed auto, it will surge alittle. It will need a torque converter to help handle the low rpms. With the stock stall speed, that cam will make the car finicky at idle and low rpms in traffic. it will want to idle near 850-900 rpms more than likely to retain good vacuum for the brakes. the stock stall speed is around 1600 i think and it will be more than halfway to the peak stall at idle let alone part throttle. You will want 2800 atleast i'd say to really get some good driveablity with that setup
alot of driveability problems can be handled with a good tune but some things you just cant get rid of
alot of driveability problems can be handled with a good tune but some things you just cant get rid of
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Thread Starter
Junior Member
Joined: Feb 2007
Posts: 11
Likes: 0
From: San Antonio, TX
Car: 1989 Formula 350
Engine: 350 TPI
Transmission: 700R4 Auto
Axle/Gears: 3.27 Borg Warner
Re: Cam For TPI/HSR, Lots of Confusion.
So I gotta buy a 2800 stall torque converter and have it put in? Oh joy...
But it'll have some insane power compared to stock 350 TPI I'm sure...
But it'll have some insane power compared to stock 350 TPI I'm sure...
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: Cam For TPI/HSR, Lots of Confusion.
you'll love it, the way it pulls and the way it sounds, but that all has its costs. need supporting mods to get the best out of it
Thread Starter
Junior Member
Joined: Feb 2007
Posts: 11
Likes: 0
From: San Antonio, TX
Car: 1989 Formula 350
Engine: 350 TPI
Transmission: 700R4 Auto
Axle/Gears: 3.27 Borg Warner
Re: Cam For TPI/HSR, Lots of Confusion.
I am willing to wait and pay for it all. Work my #%$ off. I &%^#@ love my third gen, it's everything I could have EVER wanted in a car, and I want to make it the coolest 3rd gen in this part of Texas!
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: Cam For TPI/HSR, Lots of Confusion.
Yes, all those you mentioned. The bigger the cam, the harder it is to tune, and the more supporting mods you need to make it run right, as Orr89RocZ said.
Senior Member
Joined: Sep 2007
Posts: 1,091
Likes: 1
From: West Central Ohio
Car: 86 vette
Engine: 383
Transmission: 700R4
Axle/Gears: 3.07
Re: Cam For TPI/HSR, Lots of Confusion.
Before you get all parts happy, I would suggest going to the tuner (the one you are going to use) and taking their suggestions. If they have a lot of experience, you can save your self a lot of trouble.
Or just go and buy a bunch of mismatched parts, then blame the tuner when it doesn't work.
It has been my experience, that I can give you the results you want or I can do it your way, but not both. (PS I don't sell re-tuned chips). This answer is based on thirty years of dealing with unrealistic people, in the CNC machine repair world.
Or just go and buy a bunch of mismatched parts, then blame the tuner when it doesn't work.
It has been my experience, that I can give you the results you want or I can do it your way, but not both. (PS I don't sell re-tuned chips). This answer is based on thirty years of dealing with unrealistic people, in the CNC machine repair world.
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iTrader: (4)
Joined: May 2000
Posts: 588
Likes: 0
From: Oaks,Pa
Car: 89 IROC
Engine: 350 HSR
Transmission: modified 700R4
Axle/Gears: 3.42
Re: Cam For TPI/HSR, Lots of Confusion.
I know that I wouldn't use the xr282 cam in a daily driver.Gas mileage sucks but the sound is awesome.
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Joined: Jul 2006
Posts: 757
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From: MS
Car: 87 IROC
Engine: 5.7 TPI
Transmission: 700R4
Axle/Gears: 3.27
Re: Cam For TPI/HSR, Lots of Confusion.
why dont you go w/ a computer friendly cam or a LT4 hot cam. dont go w/ anything other than a 112 LSA. use your stock heads port and polish them, 1.6 RR, screw in studs, new valve springs and a chip burned for that setup plus the other mods you mentioned. that will be very streetable and good at the track. good MPGs as well. and youd still be in your window of HP.
oh ya and dont worry about the sound. its all about how it performs. ive heard tons of cars that sound good and perform like crap.
oh ya and dont worry about the sound. its all about how it performs. ive heard tons of cars that sound good and perform like crap.
Supreme Member
iTrader: (3)
Joined: May 2008
Posts: 1,116
Likes: 1
From: boise, ID
Car: 91 B4C "police special service"
Engine: L98 494hp
Transmission: tko-600 on order
Axle/Gears: 3.23 true trac
Re: Cam For TPI/HSR, Lots of Confusion.
just to put my two cents in here.....i went with crane cam 104224.....designed to work with the stock computer....unless you do heads, headers, intake, etc. etc. then you'll want some computer work....but I put this cam in without any computer work and with some shorty headers, and wow!! it sounded great and the driveablitly was awesome....put my car into the 13's at the time almost completly stock everything....went 13.9 @ 100.2....after some more mods really wakes the car up,
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