Engine weights

Ask and discuss technical questions

Engine weights

Postby 2002 turbo » Wed Apr 13, 2011 12:53 pm

I reckon either of these motors would look do the trick, both have proven competition records and have been thrashed on racetracks and rally stages all over the world for years!







You want to go halves Boost?? ;)
User avatar
2002 turbo
 
Posts: 357
Joined: Wed Dec 05, 2007 11:28 am

Engine weights

Postby Mopar358 » Wed Apr 13, 2011 2:11 pm

I hope that no one is thinking that you are going to make a reliable 700 bhp from a Sierra Cosworth based engine. Talk to anyone who ran one of the Sierras in the Group A era and ask them about outputs and service intervals. The only cheap turbo engine which would make the same or more power than a Dodge R5P7 would be the Toyota 2J . They are quite heavy but have reliable shim and bucket valvetrain and tough bottom end architecture and cylinder head attachment. There is plenty of aftermarket componentry available from the US and Japan to bulletproof these engines to outputs over 1000bhp reliably. If the heavy metal class was still up and running a Supra would have been a dominant car and a top 5 outright contender with a good driver. The NZ v8 class to be introduced in Feb 2012 will provide a good basis for a competitive current technology basis for a sport sedan at a reasonable price. This car will combine Transam car ease of setup and repair with cutting edge front end geometry. Please discuss!!!
Mopar358
 
Posts: 66
Joined: Mon Jun 28, 2010 12:17 pm

Engine weights

Postby 2002 turbo » Wed Apr 13, 2011 5:40 pm

I hope that no one is thinking that you are going to make a reliable 700 bhp from a Sierra Cosworth based engine. Talk to anyone who ran one of the Sierras in the Group A era and ask them about outputs and service intervals.


Why not? The engines that ran Group A were only developed as far as the Group A regulations would allow. If the engine didn't have to run the restrictive homologated parts like they did back then a few areas such as turbo size, intake manifold, management systems, fuel type, etc could be improved upon and the engines would make this level of power.

These motors powered 2 Bathurst winners (3 if the Texaco ones didn't get disqualified) so they can't be too unreliable, of course we're all lead to believe V8s don't ever blow up do they bahahahah....
User avatar
2002 turbo
 
Posts: 357
Joined: Wed Dec 05, 2007 11:28 am

Engine weights

Postby MrBoost » Wed Apr 13, 2011 5:42 pm

the 2J as in the inline 6?? again these arent 2000cc engines so in our category you must have a min weight of 1200kg's to run one. Thats an extra 225kgs to stop and turn. One of our cars runs a isuzu 3.5L v6 twin turbo. The only thing that has been unreliable on it is the crankshaft. Now we have a billet one made it should be bullet proof to make those numbers aswell and it weighs less and as it is a v it is more compact. it is also an easy engine to work on!
1000bhp is a bit of a problem tho, getting it all to the ground is a big challenge. I think the best way to go in s/s is a turbo 4 granted you can have the 975kg weight limit. I know at least two of the engines pictured above make over 700bhp reliably. The bmw engine even more! The lancia engine is what i run in my car now. Currently it has a standard crank, standard head, standard valves and springs. It makes 620bhp which is not stressing it at all. It did 3 years without being pulled apart. The thing that killed it eventually was a screw going thru it breaking a valve head off. Theres plenty of power to come out of it yet if i want to start spending a little more. The cosworth pictured isnt terribly reliable at those numbers. But as you mentioned the mitsubishi evo engine is getting better and better and cosworth themselves are selling heads flowing 400cfm for them.
What revs do the dodge engines make the 800bhp? we have rev limits in the category for 6L engines which cuts the numbers down a bit. 7800?? is it guys? I have definately seen the saab reel in some of the other chev engines down the straight. The only thing ive ever seen reel it in was our old mazda 2.5L v6 twin turbo. But it was a bit of a hand grenade! Why dont more people runs these dodge engines?
MrBoost
 
Posts: 541
Joined: Thu Nov 15, 2007 5:42 pm
Location: Sydney

Engine weights

Postby Mopar358 » Wed Apr 13, 2011 6:36 pm

I still maintain the Sierra cosworth is not a cost effective engine to make big power reliably. The BMW and lancia integrale are both fantastic engines and would deliver the goods. A Dodge engine optimized for E85 will make 580 ft lbs under 6000 and nearly 800 bhp at the required 7800 rpm. The reason for using Dodges over Chev Sb2.2 or RO 7 and the Ford C3 and D3 is cost. The only team using Dodge engines are Penske and they fund the R&D. All the other engines that were campaigned by Gannassi, Evernham and Petty are now on the market, they are cheaper and have greater design integrity than the Chevs and Fords and two thirds to half the cost of the other breeds. I have sold over a dozen of these engines in The US , Australia and New Zealand. They have been used in lots of applications from Off road buggies, jet sprint boats to Drag cars and Sport sedans. There will be a Calibra powered by one in the next couple of months. NASCAR engines all use lots of generic parts. Cranks are dominated by Sonny Bryant or Randy Winberg, pistons Mahle or JE. Con rods, Carrilo, Pankl or Lentz Rocker gear T&D or Jesel ( except Roush Yates) Psi valve springs Del West valves and Crane or Mallory ignition. The use of quality pieces assembled by great tradesmen yields a great result. One only has to the performance of the Chev Sb2.2 in the Jackson Calibra and the Vigurs Camaro to know how potent and simple they are to use. I have a container leaving the US within 3 weeks and could certainley arrange purchase and/ or freight for any flat tapper orRoller Cam
NASCAR engine in any specification.
Mopar358
 
Posts: 66
Joined: Mon Jun 28, 2010 12:17 pm

Engine weights

Postby MrBoost » Wed Apr 13, 2011 6:51 pm

hehe i knew you had to be selling something! is it the tamasi calibra? I do wish the americans would sink millions of dollars of development into making other engines reliable and selling parts at large produce prices!
MrBoost
 
Posts: 541
Joined: Thu Nov 15, 2007 5:42 pm
Location: Sydney

Engine weights

Postby Mopar358 » Wed Apr 13, 2011 7:40 pm

No it's not the Tamasi car, I can't tell but it will be out soon with a new burst of speed. Mark Nelsons car is INCREDIBLE value and you only have to look at the times the car did with Shane Price in it. Put that thing on 18s, get Seto to do the shocks and that thing would be all over the frontrunners like a cheap suit. That car along with the Bob Gill mustang and the Tony Ave car of Bryson need to be campaigned to keep interest in this great and diverse class. It breaks my heart that there are so many fast cars that just arnt out there. The Mundy Camaro is another one, let's get them out there. Lease them out or sellem cheap. Let's hope we don't have to wait until they have historic status to see them run again!! Please discuss!!
Mopar358
 
Posts: 66
Joined: Mon Jun 28, 2010 12:17 pm

Engine weights

Postby MrBoost » Wed Apr 13, 2011 7:50 pm

mate im trying to buy it!!
MrBoost
 
Posts: 541
Joined: Thu Nov 15, 2007 5:42 pm
Location: Sydney

Engine weights

Postby Mopar358 » Wed Apr 13, 2011 8:22 pm

Sorry about the diatribe, it's such a good car and I want to hear the howl of a Dodge soon lol!!!!!
Mopar358
 
Posts: 66
Joined: Mon Jun 28, 2010 12:17 pm

Engine weights

Postby Nadz44 » Thu Apr 14, 2011 12:14 pm

Why is it that the dodge engine is only starting to make its presence felt now????, are they a relatively new engine???.
#44 Datsun 240Z 6L Chev Sequential Hollinger..... (I Wish)....:p
User avatar
Nadz44
 
Posts: 1177
Joined: Wed Jul 04, 2007 12:55 pm
Location: Sydney

PreviousNext

Return to Rules, Regulations & Technical

Who is online

Users browsing this forum: No registered users and 1 guest

cron