View Full Version : What BHP should I expect???
kneesparks
13-08-2011, 11:26
Hi all. Iv got a full S/S zorst from manifold back consisting of a Prowler 4-2-1 manifold/downpipe, decat, magnex system. With airbox mod and Gunner chip (7200 rev limit) Just wondered what sort of BHP it would be at? I'm guessing around 170-175??? What do you think? Oh the car is on 120000 miles now :)
150-160bhp probably on a sensible set of rollers if its working well, ie about 10% up on a standard engine of the same mileage.
Depends totally on what rolling road you go to though, they can easily vary by 20bhp.
Really to see the effect of the changes you should have put in on with and without the modifications.
kneesparks
13-08-2011, 12:50
I thought the Williams made 150bhp at the crank. So with these mods would make 20-25bhp more??? It's does feel a lot more lively and revs nice with the soft rev limit instead of the standard brick wall limit.
150 if its been looked after,it will have lost a few hp over its life
High: 160
Low: 145
Expected: 152
I had basically the same and got 152.2 or so. I think with the manifold you'll get a few more though. The Gunner chip with super unleaded will probably make more torque/bhp through the rev range though, not just the peak bhp.
zmaster2k
14-08-2011, 09:05
Will agree with the above.
Mine made 149 before cams /pulies/exhaust and remap
After on she made 176bhp and 180bhp.
However these are all on different rollers so realistically I'm expecting around 165ish.
kneesparks
15-08-2011, 15:33
Thought it would be more than that. I had a burn up with a Ford Focus ST (2.5 turbo) and there was nothing in it at all, I would have thought the focus would have beat me??? :roll:
Thought it would be more than that. I had a burn up with a Ford Focus ST (2.5 turbo) and there was nothing in it at all, I would have thought the focus would have beat me??? :roll:
225 bhp, weight 10 metric tons! i could almost keep up with a focus sanitary towel in my 1.6 16v
170 bhp in something as light as a clio will be just as fast as a heavy car with more bhp.
tis all about power to weight
MatBrown
15-08-2011, 16:23
You would need cams and headwork to see 170-180 bhp.
Have a look at Jay S and his set up. I think he is about on 180bhp after a long time fine tuning it. He uses Piper 285's on an APD spec big port head I think. He has a Supersprint manifold as well.
You would need cams and headwork to see 170-180 bhp.
I dont agree with that TBH, mine made 171bhp on a dyno dynamics rolling road (what I tend to go by) without cams or headwork, just a better exhaust and a set of bodies and I remapped it on aftermarket management, and that was quite a tired engine.
I reckon the core engine is easily good for 180bhp in the right circumstances in terms of intake and exhaust.
Cams and headwork do make it a lot more easy to achieve though of coure, but I wouldnt actually say they are needed.
MatBrown
16-08-2011, 15:06
You would need cams and headwork to see 170-180 bhp.
I dont agree with that TBH, mine made 171bhp on a dyno dynamics rolling road (what I tend to go by) without cams or headwork, just a better exhaust and a set of bodies and I remapped it on aftermarket management, and that was quite a tired engine.
I reckon the core engine is easily good for 180bhp in the right circumstances in terms of intake and exhaust.
Cams and headwork do make it a lot more easy to achieve though of coure, but I wouldnt actually say they are needed.
So you were using throttle bodies instead of standard intake?
Yes, throttle bodies, aftermarket management, but a core standard engine, ie standard head and cams specifically.
If you were refering to while retaining the standard inlet, then yes I agree you would need cams as the standard inlet doesnt breathe very well so you need to breathe through it for longer per revolution.
My 80k miles engine did 158 bhp with k&n panel filter and performance exhaust.
Otherwise it's full standard engine.
But willy's are strange, there are some that are fast as **** (mine keeps up with 182 without any problems), and there are some that go like 1.8 valvers maybe bit better in low rpm's).
Upps, and I got chipped ECU, sorry.
So, 80k + k&n panel + exhaust + chip = 158 bhp
Quite good for 18 year old girl :D
ThRaXaIR
16-08-2011, 16:22
Really depends car to car. had mine remapped at multiple stages and got...
SS exhaust...151bhp
SS exhaust, Decat, filter and gunner remap....168bhp on one RR and 172bhp on a different RR
Car now has a janspeed SS exhaust, decat, 4-2-1 manifold, KJ16v remap and foam air filter......Still havent rolled it but judging by whatever KJ did to it it WILL put out more i guarentee it!!! :D
Also ask Cliolord about my car hes driven it and wants my engine. :P
engines done 123k
kneesparks
16-08-2011, 16:54
I may have to get KJ16v to custom map mine then, I did send him my ecu for him to solder in the chip carrier and plug in the gunner chip. The manifold was a bitch to fit! :roll: :oops:
I get the odd times when it ticks over badly and sounds like its got some lumpy cams in, I just give it a quick rev and its fine again. Im not too worried about power in the clio, its my daily driver so needs to be reliable.
zmaster2k
16-08-2011, 17:15
KJ mapped mine too! Really made a difference.
But If mine makes 180bhp on a dynodynamics RR I'll eat my hat.
But tbh.... I don't care my car defiantly quicker than a standard I one by far! I don't really care for figures....hense no recent rolling road. I'm quite happy for now lol (well I will when it's painted lol)
MatBrown
16-08-2011, 17:24
Yes, throttle bodies, aftermarket management, but a core standard engine, ie standard head and cams specifically.
If you were refering to while retaining the standard inlet, then yes I agree you would need cams as the standard inlet doesnt breathe very well so you need to breathe through it for longer per revolution.
Yeah, i wasn't saying the ONLY way to get 170-180 was with cams/headwork. lol
Really depends car to car. had mine remapped at multiple stages and got...
SS exhaust...151bhp
SS exhaust, Decat, filter and gunner remap....168bhp on one RR and 172bhp on a different RR
Car now has a janspeed SS exhaust, decat, 4-2-1 manifold, KJ16v remap and foam air filter......Still havent rolled it but judging by whatever KJ did to it it WILL put out more i guarentee it!!! :D
Also ask Cliolord about my car hes driven it and wants my engine. :P
engines done 123k
Well your 172bhp certainly proves Mat Brown and me wrong as we both beleive you need either bodies or cams to get over 170 out of one of these engines. LOL
But TBH I still feel that even after your post, I just think the rollers I use must read lower than the ones that you use as I dont beleive that your gunner chip and panel filter is in reality a match for my rolling road mapped aftermarket ecu with throttle bodies, but you actually made 1bhp MORE than I did, LOL
Its SO pointless comparing figures off different rolling roads.
ThRaXaIR
16-08-2011, 22:18
lol yeh it would be a big waste of money for you... :P sorry i jest. Also the second part of that story is on the roller that gave it 172 it was a cliosport.net rolling road day and loads of 172's were coming in under 172 with exhausts and IK. they were gutted, That was a good day. ;)
Vandella
19-08-2011, 16:48
lol yeh it would be a big waste of money for you... :P sorry i jest. Also the second part of that story is on the roller that gave it 172 it was a cliosport.net rolling road day and loads of 172's were coming in under 172 with exhausts and IK. they were gutted, That was a good day. ;)
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